2016 Pest ID Guide - New England Vegetable Guide

Transcription

N
ortheast Extension Systems
Northeast
Vegetable & Strawberry
Pest Identification Guide
Weeds • Insects • Diseases • Physiological Disorders
2016 Edition
United States Department of Agriculture cooperating.
$15.00
Northeast
Vegetable & Strawberry
Pest Identification Guide
Co-Editors:
A. Richard Bonanno, University of Massachusetts
Ruth Hazzard, University of Massachusetts
Assistant Editors:
Kate Everts, University of Maryland
and University of Delaware
David Handley, University of Maine
Cathy Heidenreich, Cornell University
John Howell, University of Massachusetts
Bradley Majek, Rugers University
Joanne Whalen, University of Delaware
Robert Wick, University of Massachusetts
Jude Boucher, University of Connecticutt
Susan Scheufele, University of Massachusetts
Partial funding for this document was provided by
the U.S. E.P.A., Region 1,
Strategic Agricultural Initiative Program Funds.
Grant Number: X8971450010
2
USDA CSREES
The Vegetable IPM Working Group
Northeastern IPM Center
UMass Extension
Weeds t
Common Name
Latin Name
Barnyardgrass
Bedstraw, Catchweed
Bindweed, Field
Campion, White
Canada Thistle
Carolina Geranium (Cranesbill)
Carpetweed
Chickweed
Clover
Clover, Red
Cocklebur
Crabgrass
Crabgrass
Curly Dock
Dandelion
Foxtail, Green
Foxtail, Yellow
Galinsoga
Goldenrod
Goosegrass
Groundsel, Common
Groundsel, Common
Horsetail, Field
Jimsonweed
Johnsongrass
Lambsquarters, Common
Lettuce, Prickly
Mallow, Common
Marestail (horseweed)
Morningglory
Mustard, Wild
Nettle, Purple Dead
Nightshade
Nightshade, Eastern Black
Echinochloa crusgalli
Galium aparine
Convolvulus arvensis
Silene alba
Cirsium arvense
Geranium carolinianum L
Mollugo verticillata
Stellaria media
Trifolium sp.
Trifolium pretense
Xanthium strumarium
Digitaria sanguinalis
(2 images)
Rumex crispus
Taraxacum officinale
Setaria viridis
Setaria glauca
Galinsoga ciliata
Solidago sp.
Eleusine indica
Senecio vulgaris
(2 images)
Equisetum arvence
Datura stramonium Sorghum halpense Chenopodium album
Lactuca serriola
Malva neglecta
Conyza canadensis
Ipomea sp.
Brassica kaber
Lamium purpureum
Solanum sp.
Solanum ptycanthum
Plate Page
W-110
W-210
W-310
W-410
W-510
W-610
W-710
W-810
W-9 10
W-1011
W-1111
W-1211
W-13 11
W-1411
W-1511
W-1611
W-1711
W-1811
W-1912
W-2012
W-2112
W-22 12
W-2112
W-2412
W-2512
W-2612
W-2712
W-2813
W-2913
W-3013
W-3113
W-3213
W-3313
W-3413
Common Name
Latin Name
Plate
Page
Nutsedge, Yellow
Oats
Orchardgrass
Panicum, Fall
Pansy, Field
Pennycress, Field
Pepperweed, Virginia
Pigweed, Redroot
Pimpernel, Scarlet
Pimpernel, Scarlet Pineapple-weed
Purslane, Common
Quackgrass
Quackgrass
Ragweed, Common
Rye, Annual
Rye, Annual
Shepherdspurse
Shepherdspurse
Smartweed, Pennsylvania
Sorrel, Red
Sorrel, Red
Sorrel, Yellow Wood (Oxalis)
Sowthistle, Perennial
Speedwell, Common
Speedwell, Corn
Terbacil Toadflax, Yellow
(Butter & Eggs)
Velvetleaf
Cyperus esculentum
Avena fatua L
Dactylis glomerata
Panicum dichotomiflorum
Viola arvensis
Thlaspi arvense
Lepidium virginicum
Amaranthus retroflexus
Anagallis arvensis L.
(2 images)
Matricaria discoidea
Portulaca oleracea
Elymus repens (2 images)
Ambrosia artemisifolium
Lolium multiflorum Lam.
(2 images)
Capsella bursa-pastoris
(2 images)
Polygonum pensylvanicum
Rumex acetosella
(2 images)
Oxalis stricta
Sonchus arvensis
Veronica officinalis L
Veronica arvensis L
pesticide injury
W-3513
W-3613
W-3714
W-3814
W-3914
W-4014
W-4114
W-4214
W-43 14
W-44 14
W-4514
W-4615
W-4715
W-48 15
W-4915
W-50 15
W-51 15
W-5215
W-53 15
W-5415
W-5516
W-56 16
W-5716
W-5816
W-59 16
W-60 16
W-61 16
Linaria vulgaris
Abutilon theophrasti
W-6216
W-6316
Insects t
Common Name
Latin Name
Aphid, Cabbage
Aphid, Corn Leaf
Aphid, Green Peach
Aphid, Melon
Aphid, Pea
Aphid, Potato Asiatic Garden Beetle Asiatic Garden Beetle Asiatic Garden Beetle Asparagus Beetle, Common
Asparagus Beetle, Common
Asparagus Beetle, Spotted
Asparagus Miner
Asparagus Miner
Asparagus Miner
Bean Leaf Beetle
Beet Armyworm
Beet Armyworm
Blister Beetle, Margined
Cabbage Looper
Cabbage Maggot
Cabbage Maggot
Cabbage Maggot
Carrot Rust Fly
Carrot Weevil
Colorado Potato Beetle
Colorado Potato Beetle
Corn Earworm
Corn Earworm
Corn Earworm & Fall Armyworm
Cross-striped Cabbageworm
Cross-striped Cabbageworm
Brevicoryne brassicae
Rhopalosiphum maidis
Myzus persicae
Aphis gossypii
Acyrthosiphon pisum
Macrosiphum euphorbiae
Maladera castanea
(3 images)
Crioceris duodecimpuntata
(2 images)
Creoceris duodecimpunctata
Ophiomyia simplex
(2 images)
Ophiomyia simplex
Cerotoma trifurcata
Spodoptera exigua
(2 images)
Epicauta funebris
Trichoplusia ni
Delia radicum
(3 images)
Psila rosae
Listronotus oregonensis
Leptinotarsa decemlineata
(2 images)
Helicoverpa zea
(3 images)
Evergestis rimosalis
(2 images)
Plate Page
I-117
I-217
I-317
I-417
I-517
I-617
I-717
I-817
I-917
I-1018
I-1118
I-1218
I-1318
I-1418
I-1518
I-1618
I-1718
I-1818
I-1919
I-2019
I-2119
I-2219
I-2319
I-2419
I-2519
I-2619
I-2719
I-2820
I-2920
I-3020
I-3120
I-3220
Common Name
Latin Name
Cucumber Beetle, Spotted
Cucumber Beetle, Striped Cutworm, Black
Cutworm Damage
Cutworm, Variegated
Diamondback Moth
Diamondback Moth
European corn borer
European corn borer
European corn borer
Fall Armyworm Fall Armyworm Flea Beetle, Corn
Flea Beetle, Crucifer
Flea Beetle, Crucifer
Flea Beetle, Eggplant
Flea Beetle, Striped
Fungus Gnat, darkwinged
Fungus Gnat, darkwinged
Harlequin Bug
Harlequin Bug
Hornworm, Tomato Imported Cabbageworm
Imported Cabbageworm
Imported Cabbageworm
Japanese Beetle
Japanese Beetle
Leafhopper, Aster
Leafhopper, Potato
Leafhopper, Potato
Leafhopper, Potato
Leafminer, Beet
Diabrotica undecimpunctata
Acalymma vittatum
Agrotis ipsilon
Peridroma saucia
Plutella xylostella
(2 images)
Ostrinia nubilalis
(3 images)
Spodoptera frugiperda
(2 images)
Chaetocnema pulicaria
Phyllotreta cruciferae
(2 images)
Epitrix fuscula
Phyllotreta striolata
Bradysia spp.
(2 images)
Murgantia histrionica
(2 images)
Manduca quinquemaculata
Pieris rapae
(2 images)
Pieris rapae
Popillia japonica (2 images)
Macrosteles quadralineatis
Empoasca fabae
(3 images)
Pegomya betae
Plate Page
I-3320
I-3420
I-3520
I-3620
I-3721
I-3821
I-3921
I-4021
I-4121
I-4221
I-4321
I-4421
I-4521
I-4622
I-4722
I-4822
I-4922
I-5022
I-5122
I-5222
I-5322
I-5422
I-5523
I-5623
I-5723
I-5823
I-5923
I-6023
I-6123
I-6223
I-6323
I-6424
4
Common Name
Latin Name
Leafminer, Vegetable
Mexican Bean Beetle
Mite, Twospotted Spider Mite, Twospotted Spider Northern corn rootworm
Onion Maggot
Oriental Beetle
Pepper Maggot
Pepper Maggot
Pepper Maggot
Pepper weevil adult
Pepper weevil larva
Saltmarsh caterpillar
Sap Beetle, Dusky
Sap Beetle, Fourspotted
Sap Beetle, Fourspotted
Seedcorn Maggot
Slug, Grey Garden
Slug, Grey Garden
Soybean looper
Spotted Wing Drosophila
Squash Bug
Squash Bug
Squash Bug
Squash Vine Borer
Squash Vine Borer
Stalk Borer, Common
Stink Bug
Stink Bug, brown
Liriomyza sativae Epilachna varivestis
Tetranychus urticae
(2 images)
Diabrotica barberi
Delia antiqua
Exomala orientalis
Zonosemata electa
(3 images)
Anthonomus eugenii
(2 images)
Estigmene acrea
Carpophilus lugubris
Glischrochilus quadrisignatus
(2 images)
Delia platura
Decroceras reticultatum
(2 images)
Pseudoplusia includens
Drosophila suzukii
(4 images)
Anasa tristis
(3 images)
Melittia cucurbitae
(2 images)
Papaipema nebris
Euschistus spp.
Euschistus servus
Plate Page
I-6524
I-6624
I-6724
I-6824
I-6924
I-7024
I-7124
I-7224
I-7325
I-7425
I-7525
I-7625
I-7725
I-7825
I-7925
I-8025
I-8125
I-8226
I-8326
I-8426
I-8526
I-8626
I-8726
I-8826
I-8926
I-9026
I-9127
I-9227
I-9327
I-9427
I-9527
I-9627
Common Name
Latin Name
Plate Page
Stink bug, green
Stink bug, Marmorated
Swede Midge
Swede Midge
Tarnished Plant Bug
Tarnished Plant Bug
Thrips, Onion
Thrips, Onion
Thrips, Onion
Thrips, Western Flower
Thrips, Western Flower
Tomato Fruitworm
Tomato Pinworm Tortoise Beetle, Clavate Tortoise Beetle, Clavate True Armyworm Webworm, Garden
Webworm, Hawaiian beet & garden
Western Corn rootworm
Whitefly, Greenhouse
Wireworm
Wireworm
Acrosernum hilare Halyomorpha halys Contarinia nasturtii
(2 images)
Lygus lineolaris
(2 images)
Thrips tabaci
(3 images)
Frankliniella occidentalis
(2 images)
Helicoverpa zea
Keiferia lycopersicella
Plagiometriona clavata
(2 images)
Pseudaletia unipunctata
Achyra rantalis
Spoladea recurvalis
Diabrotica vergifera
Trialeurodes vaporariorum
Melanotus spp.
(2 images)
I-9727
I-9827
I-9927
I-10028
I-10128
I-10228
I-10328
I-10428
I-10528
I-10628
I-10728
I-10828
I-10929
I-11029
I-11129
I-11229
I-11329
I-11429
I-11529
I-11629
I-11729
I-11830
Beneficial Insects:
Insidious Flower Bug
Ladybeetle larva
Ladybeetle, Multicolored Asian
Ladybeetle, Twelve Spotted
Spined Soldier Bug
Syrphid Fly larvae
Predatory Midge
Parasite of imported cabbageworm
Orius insidiosus
species unknown
Harmonia axyridis
Coleomegilla maculata
Podisus maculiventris Syrphid species
Aphidoletes aphidimyza
Cotesia rubecula species
I-11930
I-12030
I-12130
I-12430
I-12330
I-12430
I-12530
I-12630
Diseases & Disorders t
Vegetable & Disease/Disorder
Plate
Alliums, Downy Mildew
D-131
D-231
D-331
D-431
D-531
D-631
D-731
D-831
D-931
D-1032
D-1132
D-1232
D-1332
D-1432
D-1532
D-1632
D-1732
D-1832
D-1933
D-2033
D-2133
D-2233
D-2333
D-2433
D-2533
D-2633
D-2733
Alliums, Leaf Blight
Alliums, Purple Blotch
Asparagus, Fusarium Wilt
Asparagus, Rust Basil, Downy Mildew
(3 images)
Bean, Anthracnose
Bean, Bacterial Blight
Bean, Brown Spot
Bean, Downy Mildew
Bean, Phytophthora Blight
(3 images)
Bean, Rhizoctonia Root Rot
Bean, Root and Crown Rot Bean, Rust
Bean, Virus
Bean, White Mold
Beet, Phoma Leaf Spot
Brassicas, Alternaria Leaf Spot
Brassicas, Black Leg Brassicas, Black Rot
Page
Plate
Brassicas, Black Rot
D-2834
D-2934
D-3034
D-3434
D-3234
D-3334
D-3434
D-3534
D-3634
D-3735
D-3835
D-3935
D-4035
D-4135
D-4235
D-4335
D-4435
D-4535
D-4636
D-4736
D-4836
D-4936
D-5036
D-5136
D-5236
D-5336
D-5436
Brassicas, Boron Deficiency Brassicas, Clubroot
Brassicas, Downy Mildew Brassicas, Downy Mildew
Brassicas, Downy Mildew
Brassicas, Tip Burn
Brassicas, White Mold
Brassicas, Yellows
Calabasa, Black Rot
Carrot, Alternaria Leaf Blight
Carrot, Bacterial Leaf Blight
Carrot, Black Root Rot
Carrot, Root-Knot Nematode
Celery, Heart Rot
Celery, Heart Rot Chard, Cercospora Leaf Spot Corn, Northern Corn Leaf Blight
Corn, Northern Corn Leaf Blight
Corn, Rust
Corn, Smut
Corn, Stewart’s Wilt
Corn, Stewart’s Wilt
Cucurbits, Angular Leaf Spot
Cucurbits, Angular Leaf Spot
Cucurbits, Anthracnose
Page
Plate
Page
D-5537
D-5637
Cucurbits, Bacterial Wilt D-5737
Cucurbits, Belly Rot
D-5837
Cucurbits, Black Rot
D-5937
D-6037
D-6137
D-6237
Cucurbits, Deer Damage
D-6337
Cucurbits, Downy & Powdery Mildews D-6438
Cucurbits, Downy Mildew
D-6538
D-6638
D-6738
D-6838
Cucurbits, Fruit Abortion
D-6938
Cucurbits, Fruit Rot
D-7038
Cucurbits, Fusarium Rot
D-7138
Cucurbits, Fusarium Wilt
D-7238
D-7339
D-7439
Cucurbits, Gummy Stem Blight
D-7539
Cucurbits, Gummy Stem Blight
D-7639
Cucurbits, Leaf Blight
D-7739
Cucurbits, Manganese Toxicity
D-7839
Cucurbits, Ozone Injury
D-7939
Cucurbits, Phytophthora Blight
D-8039
D-8139
Cucurbits, Bacterial Fruit Blotch
Plate
D-8240
D-8340
D-8440
D-8540
D-8640
D-8740
D-8840
D-8940
D-9040
D-9141
D-9241
D-9341
D-9441
D-9541
D-9641
D-9741
D-9841
D-9941
D-10042
D-10142
D-10242
D-10342
D-10442
D-10542
D-10642
D-10742
D-10842
Cucurbits, Plectosporium
Cucurbits, Powdery Mildew
Cucurbits, Pythium Cottony Leak
Cucurbits, Scab
Cucurbits, Scab
Cucurbits, Scab
Cucurbits, Septoria Leaf Spot
Cucurbits, Virus
Cucurbits, Virus
Cucurbits, Wind Burn
Cucurbits, Woodchuck Damage Eggplant, Anthracnose
Eggplant, Phytophthora Blight
Eggplant, Pythium Cottony Leak
Eggplant, Verticillium Wilt
Eggplant, Verticillium Wilt
Garlic, Bloat Nematode
Lettuce, Bottom Rot
Page
Plate
Page
Plate
Lettuce, Septoria Blight
Spinach, Anthracnose
Lightning Spinach, Downy Mildew
D-13646
D-13746
D-13846
D-13946
D-14046
D-14146
D-14246
D-14346
D-14446
D-14547
D-14647
D-14747
D-14847
D-14947
D-15047
D-15147
D-15247
D-15347
D-15448
D-15548
D-15648
D-15748
D-15848
D-15945
D-16048
D-16148
D-16248
D-10943
D-11043
Okra, Verticillium Wilt
D-11143
Parsley, Septoria Leaf Spot
D-11243
Parsnip, Bacterial Soft Rot
D-11343
Parsnip, Itersonilia Blight
D-11443
Parsnip, Leaf Blight
D-11543
Pea, Bacterial Blight
D-11643
Pea, Leaf and Pod Spot
D-11743
Pea, Rhizoctonia Root Rot
D-11844
Pepper, Anthracnose
D-11944
Pepper, Anthracnose
D-12044
Pepper, Bacterial Soft Rot D-12144
Pepper, Bacterial Spot D-12244
Pepper, Bacterial Spot
D-12344
D-12444
D-12544
Pepper, Cucumber Mosaic Virus
D-12644
Pepper, Impatiens Necrotic Spot Virus D-12745
Pepper, Phytophthora Blight
D-12845
Pepper, Root-Knot Nematode
D-12945
Pepper, Root-Knot Nematode
D-13045
Pepper, Sunscald
D-13145
Pepper, Sunscald
D-13245
Potato, Early Blight
D-13345
Potato, Late Blight
D-13445
Potato, Scab
D-13545
Spinach, White Rust
Sweet Potato, Black Rot
Sweet Potato, Fusarium Wilt
Sweet Potato, Pox
Sweet Potato, Scurf
Tomato, Anthracnose
Tomato, Bacterial Canker
Tomato, Bacterial Diseases
Tomato, Bacterial Speck
Tomato, Bacterial Spot
Tomato, Bacterial Spot
Tomato, Blossom End Rot
Tomato, Blotchy Ripening
Tomato, Catfacing
Tomato, Early Blight
Tomato, Fruit Cracking
Tomato, Fruit Cracking
Tomato, Fusarium Wilt
Tomato, Ghost Spot
Page
Plate
Tomato, Late Blight
D-16349
D-16449
D-16549
D-16649
D-16749
D-16849
D-16949
D-17049
D-17149
D-17250
D-17350
D-17450
D-17550
D-17650
D-17750
D-17850
D-17950
D-18050
Tomato, Late Blight
Tomato, Late Blight
Tomato, Leaf Moldt
Tomato, Leaf Mold
Tomato, Phytophthora Blight
Tomato, Pitch Necrosis
Tomato, Powdery Mildew
Tomato, Pythium Rot
Tomato, Rain Check
Tomato, Septoria Leaf Spot
Tomato, Southern Blight
Tomato, Stitching
Tomato, Tobacco Mosaic Virus
Tomato, Tospovirus
Tomato, Verticillium Wilt
Tomato, White Mold
Tomato, White Mold
Page
Strawberry
Insects t
Strawberry
Common Name
Latin Name
Plate Page
Common Name
Latin Name
Plate Page
Strawberry Bud Weevil
Anthonomus signatus SI-1
51
Gray Mold
Botrytis cineria SD-153
Strawberry Bud Weevil
SI-2
51
Leather Rot
Phytophthora cactorum
SD-253
Tarnished Plant Bug
Lygus lineolaris SI-351
Anthracnose Fruit Rot
Colletotrichum SD-353
Tarnished Plant Bug
SI-4
51
Anthracnose Crown Rot
Colletotrichum SD-4
Tarnished Plant Bug
SI-5
51
Phomospsis Leaf Blight
Phomopsis obscurans SD-554
Thrips (Eastern Flower Thrips)
Thysanoptera spp
SI-651
Angular Leaf Spot
Xanthomonas fragariae SD-654
Thrips (Eastern Flower Thrips) SI-7
Leaf Spot
Mycosphaerella fragariae SD-7
54
Twospotted Spider Mites
Tetranychus urticae
SI-851
Leaf Scorch
Diplocarpon earlianum SD-8
54
Twospotted Spider Mites
SI-9
Powdery Mildew
Sphaerotheca macularis
SD-954
Cyclamen Mite
Steneotarsonemus pallidus
SI-1052
Red Stele Root Rot
Phytophthora fragaria SD-1054
Potato Leaf Hopper
Empoasca fabae
SI-1152
Red Stele Root Rot
Phytophthora fragaria
SD-1154
Potato Leaf Hopper
SI-12
Verticillium Wilt
Verticillium albo-atrum
SD-1254
Spittlebug
Philaenus spumaris SI-1352
Black Root Rot Various fungi
SD-13
Cutworm
SI-14
Black Root Rot
SD-1455
Strawberry Rootworm
Paria canella
SI-1552
Slime Mold
Various fungi
SD-15
Strawberry Root Weevil
Otiorhynchus ovatus SI-1652
Green Petal
Strawberry green petal MLO SD-1655
Black Vine Weevil
Otiorhynchus sulcatus
SI-1752
Sunscald
SD-1755
Black Vine Weevil
SI-18
52
Winter Injury
SD-1855
Root Weevil
SI-19
53
Frost
SD-1955
White Grub
SI-20
53
Slug
Several species
SI-21
53
Strawberry Sap Beetle
Stelidota geminata
SI-2253
Strawberry Sap Beetle
51
51
52
52
SI-2353
53
54
55
Randall G. Prostak, UMass
W-3 Bindweed, Field – Convolvulus arvensis
W-2 Bedstraw, Catchweed – Galium aparine
Larry Allain, USGS
Weeds t
W-1 Barnyardgrass – Echinochloa crusgalli
W-6 Carolina Geranium (Cranesbill) –
Geranium carolinianum L
W-7 Carpetweed – Mollugo verticillata
W-8 Chickweed – Stellaria media
W-9 Clover – Trifolium sp.
10
W-5 Canada Thistle – Cirsium arvense
W-4 Campion, White – Silene alba
W-13 Crabgrass (2nd images) – Digitaria sanguinalis
W-14 Curly Dock – Rumex crispus
W-12 Crabgrass – Digitaria sanguinalis
W-11 Cocklebur – Xanthium strumarium
W-16 Foxtail, Green – Setaria viridis
11
W-17 Foxtail, Yellow – Setaria glauca
Weeds t
W-10 Clover, Red – Trifolium pretense
W-15 Dandelion – Taraxacum officinale
W-18 Galinsoga – Galinsoga ciliata
W-23 Horsetail, Field – Equisetum arvence
W-24 Jimsonweed – Datura stramonium
W-22 Groundsel, Common – Senecio vulgaris
W-21 Groundsel, Common – Senecio vulgaris
David Handley, UMaine
W-20 Goosegrass – Eleusine indica
Weeds t
W-19 Goldenrod – Solidago sp.
W-25 Johnsongrass, Rhizome – Sorghum balpense
12
W-26 Lambsquarters, Common – Chenopodium album
W-27 Lettuce, Prickly – Lactuca serriola
Weeds t
W-29 Marestail (horseweed) – Conyza canadensis
W-31 Mustard, Wild – Brassica kaber
W-32 Nettle, Purple Dead – Lamium purpureum
W-30 Morningglory – Ipomea sp.
W-28 Mallow, Common – Malva neglecta
Kurt Stuber, Univ. Wisconsin
W-33 Nightshade – Solanum sp.
W-34 Nightshade, Eastern Black – Solanum ptycanthum
13
W-35 Nutsedge, Yellow – Solanum sp.
W-36 Oats – Avena fatua L.
Weeds t
W-43 Pimpernel, Scarlet – Anagallis arvensis L.
14
W-42 Pigweed, Redroot – Amaranthus retroflexus
W-41 Pepperweed, Virginia – Lepidium virginicum
W-40 Pennycress, Field – Thlaspi arvense
W-39 Pansy, Field – Viola arvensis
W-38 Panicum, Fall – Panicum dichotomiflorum
W-37 Orchardgrass – Dactylis glomerata
W-44 Pimpernel, Scarlet – Anagallis arvensis L.
W-45 Pineapple-weed – Matricaria discoidea
Weeds t
W-47 Quackgrass – Elymus repens
W-48 Quackgrass – Elymus repens
Virginia Tech University
W-46 Purslane, Common – Portulaca oleracea
W-50 Rye, Annual – Lolium multiflorum Lam.
W-52 Shepherdspurse – Capsella bursa-pastoris
15
W-51 Rye, Annua – Lolium multiflorum Lam.
Brad Majek, Rutgers Univ.
W-49 Ragweed, Common – Ambrosia artemisifolium
W-53 Shepherdspurses – Capsella bursa-pastoris
W-54 Smartweed, Pennsylvania – Polygonum
pensylvanicum
W-57 Sorrel, Yellow Wood (Oxalis) – Oxalis stricta
W-56 Sorrel, Red – Rumex acetosella
Weedalert.com
Weeds t
W-55 Sorrel, Red – Rumex acetosella
W-60 Speedwell, Corn – Veronica arvensis L
Kansas State University
W-59 Speedwell, Common – Veronica officinalis L
W-58 Sowthistle, Perennial – Sonchus arvensis
W-61 Herbicide Injury (terbacil)
16
W-62 Toadflax, Yellow (Butter & Eggs) – Linaria vulgaris
W-63 Velvetleaf – Abutilon theophrasti
I-7 Asiatic Garden Beetle, Maladera castanea,adult. 8-12
mm
17
David N. Ferro, University of Massachusetts
Jude Boucher, University of Connecticut
I-6 Aphid, Potato, Macrosiphum euphorbiae.2.1–3.4 mm
Alan Eaton, University of New Hampshire
Low Resolution Photo - Replace
I-5 Aphid, Pea, Acyrthosiphon pisum,2.3–2.7 mm
David Shetlar, Ohio State University
I-4 Aphid, Melon, Aphis gossypii,nymphs. Note light brown
cases of parasitized aphids, known as ‘mummies.’ 1–2 mm
I-3 Aphid, Green Peach, Myzus persicae,winged adult
female and nymphs on potato. 1.7–2 mm
Whitney Cranshaw, Colorado State University
Martin Spellman
I-2 Aphid, Corn Leaf, Rhopalosiphum maidis,on sweet
corn tassel. 1.5–2.4 mm
Insects t
I-1 Aphid, Cabbage, Brevicoryne brassicae, 1.6–2.6 mm
I-8 Asiatic Garden Beetle, Maladera castanea,damage
on basil
I-9 Asiatic Garden Beetle, Maladera castanea,larva. Up
to 19 mm
18
I-16 Bean Leaf Beetle, C
erotoma trifurcata, adult.
3.5–5 mm
I-15 Asparagus Miner, Ophiomyia simplex,damage to
roots and crown of asparagus.
Thomas Kuhar, Virginia Tech
Martin Spellman
I-14 Asparagus Miner, Ophiomyia simplex,larva and
feeding damage on asparagus stem. 0.4–3.5 mm
Martin Spellman
I-13 Asparagus Miner, O
phiomyia simplex,adults on
asparagus stem. 3–4 mm
I-12 Asparagus Beetle, Spotted, Creoceris duodecimpunctata,adult. 6–7.5 mm
I-11 Asparagus Beetle, Common, C
rioceris duodecimpuntata,larvae, feeding on asparagus. 1.5–8 mm
Insects t
I-10 Asparagus Beetle, Common, C
rioceris duodecimpuntata,adult. 5–6 mm
I-17 Beet Armyworm, S podoptera exigua,larvae anddamage on tomato. 1–22.3 mm
I-18 Beet Armyworm, Spodoptera exigua,caterpillars,
larvae. 2.5–22.3 mm
Carol Miles, Washington State University
I-24 Carrot Rust Fly, P
sila rosae,maggot and damage.
6–9 mm
I-23 Cabbage Maggot, D
elia radicum,maggots and pupae
(brown) with damaged roots and stem. 1.5–8 mm
19
I-25 Carrot Weevil, Listronotus oregonensis,adult.
3.5–7 mm
elia radicum,adult fly. 5–7 mm
I-20 Cabbage Looper, T
richoplusiani, caterpillar. 0.2–0.5 mm
elia radicum,eggs, laid in soil at
base of stem. 1.1 mm
Insects t
I-19 Blister Beetle, Margined, Epicauta funebris, adult.
7-15mm
I-26 Colorado Potato Beetle, Leptinotarsa decemlineata,
adult. 9–14 mm
I-27 Colorado Potato Beetle, Leptinotarsa decemlineata,
larvae in the final instar. 1.5–15 mm
20
I-33 Cucumber Beetle, Spotted, D
iabrotica undecimpunctata,adult; also known as Southern Corn Rootworm.
6–7.5 mm
I-35 Cutworm, Black, A
grotis ipsilon,caterpillar. 3.5–50 mm
Jim Dill, University of Maine
I-32 Cross-striped Cabbageworm, Evergestis rimosalis,
damage on cabbage.
I-34 Cucumber Beetle, Striped, A
calymma vittatum,
adult. 7 mm
I-31 Cabbageworm, Cross-striped, Evergestis rimosalis,
caterpillar. Up to 15–17 mm
I-30 Corn Earworm & Fall Armyworm, head capsules of
fall armyworm (left and right) and corn earworm (center)
caterpillars.
I-29 Corn Earworm, H
elicoverpa zea,caterpillar and ear
damage. 1.5-24.8 mm
Insects t
I-28 Corn Earworm, H
elicoverpa zea,adult moth. 32-45 mm
I-36 Cutworm, damage, caterpillar in the soil and damage to bean seedling.
21
I-42 European Corn Borer, O
strinia nubilalis,caterpillar
feeding inside pepper. 1.5–25.5 mm
I-44 Fall Armyworm, S podoptera frugiperda,caterpillar
and ear damage. 1.7–34.2 mm
strinia nubilalis,full-grown
caterpillar on corn. 1.5–25.5 mm
I-43 Fall Armyworm, S podoptera frugiperda,adult.
Wingspan 32–40 mm
I-39 Diamondback Moth, P
lutella xylostella,caterpillar.
1.7–11.2 mm
I-38 Diamondback Moth, P
lutella xylostella,adult moth.
6 mm
strinia nubilalis,adult moth
(female). Wingspan 20–26 mm (male), 25–34 mm (female)
R.J. Reynolds Tobacco Company, www.
ipmimages.org
Insects t
I-37 Cutworm, Variegated, P
eridroma saucia,caterpillar.
2.0–46 mm
I-45 Flea Beetle, Corn, Chaetocnema pulicaria,adult.
1.6–2.1 mm
I-51 Fungus Gnat, Darkwinged, B
radysiaspp., larvae
stage. Up to 5.5 mm
I-53 Harlequin Bug, Murgantia histrionica,nymphs.
I-50 Fungus Gnat, Darkwinged, B
radysiaspp., adult.
2.5 mm
22
I-52 Harlequin Bug, Murgantia histrionica,adults, mating pair. 8–11.5 mm
I-48 Flea Beetle, Eggplant, Epitrix fuscula,adult. 2 mm
J. Ogrodnick, Cornell University
I-47 Flea Beetle, Crucifer, Phyllotreta cruciferae, damage
on cabbage.
I-49 Flea Beetle, Striped, P
hyllotreta striolata,adult.
2–2.4 mm
Caryn Andersen, University of Massachusetts
Insects t
I-46 Flea Beetle, Crucifer, Phyllotreta cruciferae,adult.
2.2 mm
I-54 Hornworm, Tomato, M
anduca quinquemaculata,
caterpillar, covered with cocoon of Braconid wasp parasite.
6.7–81.3 mm
Casey Hoy, Ohio State University
David Cappaert, www.ipmimages.org
23
I-60 Leafhopper, Aster, Macrosteles quadralineatis,adult
and nymphs. 3.5–3.8 mm (adult)
I-59 Japanese beetle, Popillia japonica,grub (left, 1.5 - 32
mm), compared to European chafer, Rhizotrogus majalis
(center) and Junebug, Phyllophaga sp.(right).
I-61 Leafhopper, Potato, Empoasca fabae,adult. 3.5 mm
I-57 Imported Cabbageworm, P
ieris rapae,partly and
full grown caterpillars on cabbage. 3.2–30.1 mm
ieris rapae,egg on broccoli leaf. Eggs are laid singly on top or underside of leaves.
0.5–1 mm
I-58 Japanese Beetle, P
opillia japonica,adult. 8–11 mm
Insects t
ieris rapae,adult butterfly. Wingspan 44 mm
I-62 Leafhopper, Potato, Empoasca fabae,symptoms of
‘hopperburn’ in potato.
I-63 Leafhopper, Potato, Empoasca fabae, symptoms of
‘hopperburn’ in snap bean.
Michael Hoffman, Cornell University
I-69 Northern Corn Rootworm, Diabrotica barberi,adult.
6 mm
I-68 Mite, Twospotted Spider, T
etranychus urticaem,
feeding injury on eggplant.
24
I-70 Onion Maggot, D
elia antiqua,adult fly, pupae and
larvae. 6 mm (adult), up to 10 mm (maggot)
I-66 Mexican Bean Beetle, E
pilachna varivestis,adult,
eggs, larva and pupa with feeding injury, on bean. 6–8 mm
(adult), 6–9.5 mm (larvae)
I-65 Leafminer, Vegetable, L
iriomyza sativae,damage to
bean leaves.
I-67 Mite, Twospotted Spider, T
etranychus urticae,adult,
egg, and nymph. 0.4–0.5 mm (adult)
Clemson University - USDA Cooperative Extension Slide Series, www.insectimages.org
Insects t
I-64 Leafminer, Beet, Pegomya betae,maggot exposed in
feeding tunnel, on beet leaf. Up to 5–7 mm
I-71 Oriental Beetle, Exomala orientalisadult. 9–10.3 mm
I-72 Pepper Maggot, Z
onosemata electa,adult fly. 6.5 mm
(male), 7.5 mm (female)
Keith Weller, USDA-ARS, www.ipmimages.org
Martin Spellman
I-78 Sap Beetle, Dusky, Carpophilus lugubris,adult.
3.5–4.5 mm
James Kalish, University of Nebraska-Lincoln
I-77 Saltmarsh Caterpillar, Estigmene acrea,caterpillar.
2–50 mm
James Kalish, University of Nebraska-Lincoln
25
I-79 Sap Beetle, Fourspotted, G
lischrochilus quadrisignatus,
adult. Also known as picnic beetle. 5–6 mm
I-75 Pepper Weevil, A
nthonomus eugenii,adult. 2–3.5 mm
Paul McLeod, University of Arkansas
onosemata electa,‘oviposition stings,’
damage to fruit from egg laying by female maggot flies.
I-76 Pepper Weevil, Anthonomus eugenii,larva. 1.–5 mm
Paul McLeod, University of Arkansas
Becky Grube, University of New Hampshire
Insects t
onosemata electa,maggot feeding
inside pepper fruit. Up to 10–12 mm
I-80 Sap Beetle, Fourspotted. G
lischrochilus quadrisignatus,larva. Feeds in corn kernels. Up to 5–6 mm
I-81 Seedcorn Maggot, D
elia platura,maggot feeding
inside seed. 5–8 mm
26
I-89 Squash Bug, A
nasa tristis,adult. 16 mm
Eric Sideman, Maine Organic Farmers and
Gardeners Assoc.
I-87 Spotted Wing Drosophila, Drosophila suzukii,
adults on crack in tomato fruit.
I-86 Spotted Wing Drosophila,Drosophila suzukii,female ovipositor. Note double, serrated edge.
I-88 Spotted Wing Drosophila,Drosophila suzukii,larvae in tomato fruit.
I-84 Soybean Looper, P
seudoplusia includens,caterpillar.
Up to 35 mm
Chery Smith, University of New Hampshire
Chery Smith, University of New Hampshire
I-83 Slug, Grey Garden,Deroceras reticultatum,feeding
damage on cabbage.
I-85 Spotted Wing Drosophila,Drosophila suzukii,
adults. Female, top; male, bottom. Males have a distinctive
spot on each wing. 2-3 mm
Martin Spellman
Insects t
I-82 Slug, Grey Garden,Deroceras reticultatum,on cabbage.
I-90 Squash Bug, A
nasa tristis,egg mass on pumpkin
leaf. 1.1–1.5 mm
27
Kathy Kamminga, Virginia Tech
Julie Kikkert, Cornell University
I-96 Stink Bug, Brown, Euschistus servus,adult. 10–15 mm
I-95 Stink Bug, E uschistus spp., feeding injury on
tomato fruit.
Martin Spellman
I-97 Stink Bug, Green, A
crosternum hilare, adult. 15 mm
I-93 Squash Vine Borer, M
elittia cucurbitae,caterpillar
and damage inside squash stem. Up to 25 mm
Martin Spellman
I-92 Squash Vine Borer, M
elittia cucurbitae,adult moth.
Wingspan 25–37 mm
I-94 Stalk Borer, Common, P
apaipema nebris,caterpillar.
Up to 27 mm
Insects t
I-91 Squash Bug, A
nasa tristis,nymphs. 2.5–10 mm
I-98 Stink Bug, Brown Marmorated, Halyomorpha halys,
adult. The next to last (4th) antennal segment has a white band;
abdominal segments alternate white and dark edge. 17mm
I-99 Swede Midge, C
ontarinia nasturtii,damage.
I-106 Thrips, Western Flower, F
rankliniella occidentalis,
on yellow sticky card with fungus gnat. 1.2–1.9 mm (adult)
28
I-104 Thrips, Onion, Thrips tabaci,damage on collard
leaf
I-105 Thrips, Onion, Th
rips tabaci,damage on onion.
I-107 Thrips, Western Flower, F
rankliniella occidentalis,
close-up of thrips larvae. <1 mm
John Sanderson, Cornell University
John Sanderson, Cornell University
I-103 Thrips, Onion, Thrips tabaci, adult.1–1.2 mm
I-102 Tarnished Plant Bug, L
ygus spp.,nymph. 1– 4.5
mm
I-101 Tarnished Plant Bug, L
ygus spp.,adult. 4.9–5.95
mm
Scott Bauer, USDA-ARS
Louis Tedders, USDA-ARS, www.ipmimages.
org
Rebecca Hallet, University of Guelph, CAN
Insects t
I-100 Swede Midge, C
ontarinia nasturtii,larvae and damage. 0.3–3.4 mm
I-108 Tomato Fruitworm, H
elicoverpa zea,caterpillar
and damage on tomato.Same species as Corn Earworm.
1.5–24.8 mm
I-116 Whitefly, Greenhouse, T
rialeurodes vaporariorum,
adult and nymphs. 1–2 mm (adult), 0.3–0.75 mm (nymphs)
Martin Spellman
I-114 Webworm, Hawaiian Beet, S poladea recurvalis,
caterpillar (left), along with Garden Webworm (right). Up
to 25 mm
Martin Spellman
29
Martin Spellman
I-113 Webworm, Garden, Achyra rantalis,caterpillar.
2.1–20 mm
I-112 True Armyworm, P
seudaletia unipunctata,caterpillars. Also called Common Armyworm or simply, Armyworm. Up to 35 mm
I-115 Western Corn Rootworm, D
iabrotica vergifera,
adult. 6 mm
I-111 Tortoise beetle, Clavate, Plagiometriona clavata,
larva.
Martin Spellman
Insects t
Alton Sparks, University of Georgia
I-110 Tortoise beetle, Clavate, Plagiometriona clavata,
adult. 5-7 mm
I-109 Tomato Pinworm, K
eiferia lycopersicella,caterpillar. 0.7–8 mm
I-117 Wireworm, M
elanotusspp, adult, also known as
‘click beetle.’ 7–11 mm
30
I-125 Predatory Midge (beneficial insect), Aphidoletes
aphidimyza, l arva. Aphid predator. 2-3mm
Martin Spellman
I-126 Parasite of imported cabbageworm (beneficial
insect), C
otesia rubecula, ICW caterpillars with cocoon of
C. rubecula. 3-4mm
setts
Roy Van Driesche, University of Massachu-
ipmimages.org
Low Resolution Photo - Replace
I-124 Syrphid Fly larva (beneficial insect). Aphid predator; immature of Hover fly 1–13 mm
I-123 Spined Soldier Bug (beneficial insect), Podisus
maculiventris,adult. Preys on insect eggs and larvae.
8.5–13 mm
I-122 Ladybeetle, Twelve Spotted (beneficial insect), Coleomegilla maculata,adult. Preys on insect eggs and small
larve, including Colorado potato beetle and aphids. 5.5 mm
Martin Spellman
I-121 Ladybeetle, Multicolored Asian (beneficial insect),
Harmonia axyridis,adult beetles showing a range marking
color. 6 mm
I-120 Ladybeetle (beneficial insect), F
amily: Coccinellidae,larva feeding on aphids. Up to 5–6 mm
Martin Spellman
I-119 Insidious Flower Bug (beneficial insect), Orius insidiosus,feeding on aphid. Common in corn. 3 mm
ipmimages.org
ipmimages.org
Martin Spellman
Insects t
I-118 Wireworm, M
elanotusspp., larva. 1.5–19 mm
31
D-7 Basil, Downy Mildew - Dark sporulation on underside of basil leaf caused by the oomycete Pernospora
belbahrii.
Robert L. Wick, University of Massachusetts
Dennis Johnson
D-3 Alliums, Purple Blotch - O
blong, purplish lesions
caused by the fungus Alternaria porri on leek foliage.
D-6 Basil, Downy Mildew - Yellowing of foliage caused
by infection with the oomycete Peronospora belbahrii.
D-8 Basil, Downy Mildew - Yellowing of foliage caused
by infection with the oomycete Peronospora belbahrii.
D-5 Asparagus, Rust - Rust pustules of the fungus Puccinia asparagi on Asparagus fern tissue.
D-4 Asparagus, Fusarium Wilt - Fusarium wilt of asparagus caused by the fungi Fusarium oxysporum and F.
proliferatum.
C. Andrew Wyenandt, Rutgers
Melvyn L. Lacy, Michigan State University,
Melvyn L. Lacy, Michigan State University,
Wade Elmer, Connecticut Agriculture Experiment
Station
D-2 Alliums, Leaf Blight - Small white lesions with haloes caused by Botrytis squamosa on onion foliage.
D-1 Alliums, Downy Mildew - Sporulation of the oomycete Peronospora destructor on onion foliage.
D-9 Bean, Anthracnose - A nthracnose caused by the fungus Colletotrichum lindemuthianum on green beans.
32
James G. Kantzes, University of Maryland
D-14 Bean, Phytophthora Blight - Crown rot and plant
collapse caused by the oomycete Phytophthora capsici in a
bean field.
Robert Mulrooney, University of Delaware
D-15 Bean, Phytophthora Blight - W hite sporangia of
Phytophthora capsici on surface of lima bean pod.
D-17 Bean, Root and Crown Rot - Root and crown rot
caused by the fungus Thielaviopsis basicola.
D-13 Bean, Phytophthora Blight - Diffuse, white mycelia
of the oomycete Phytophthora capsici on bean pods.
D-16 Bean, Rhizoctonia Root Rot - Root rot caused by
the fungus Rhizoctonia solani.
D-12 Bean, Downy Mildew - Symptoms of downy mildew
caused by the oomycete Phytophthora phaseoli on Lima
bean pods.
D-11 Bean, Brown Spot - Leaf spots caused by the bacterium Pseudomonas syrinage pv. syrinage.
D-10 Bean, Bacterial Blight - Leaf blight caused by the
bacterium Pseudomonas syrinage.
D-18 Bean, Rust - Rust putules caused by the fungus Uromyces phaseoli on bean.
33
D-25 Brassicas, Alternaria Leaf Spot - Dark spots with
yellow haloes on radish foliage caused by one of three species of Alternaria fungi.
D-23 Brassicas, Alternaria Leaf Spot - D
ark, concentricringed lesions caused by the fungus Alternaria brassicicola
on broccoli leaves.
D-21 Beet, Phoma Leaf Spot - Symptoms of Phoma leaf
spot caused by the fungus Phoma lignan on beet foliage.
D-24 Brassicas, Alternaria Leaf Spot - B
rown to black
rot of curds caused by the fungus Alternaria brassicicola on
broccoli head.
D-22 Brassicas, Alternaria Leaf Spot - T
arget-like lesion
caused by the fungus Alternaria brassicicola on cabbage
leaf.
D-20 - Bean, White Mold - White,
fluffy mycelia and black
sclerotia produced by the fungus Sclerotinia sclerotiorum on
green bean pods.
D-19 Bean, Virus - Symptoms of a viral infection on bean
foliage.
D-26 Brassicas, Black Leg - S ymptoms of black leg caused
by the fungus Phoma lignan on stem and petiole of cabbage
plant.
D-27 Brassicas, Black Rot - V-shaped lesions on leaf margins caused by the bacterium Xanthomonas campestris pv.
campestris on cabbage plant.
34
D-34 Brassicas, Tip Burn - S ymptoms of tip burn caused
by calcium deficiency on cabbage.
D-30 Brassicas, Clubroot - Symptoms of clubroot caused
by the fungus Plasmodiophora brassicae.
D-35 Brassicas, White Mold - A
water soaked lesion,
white mycelia, and black sclerotia of the fungus Sclerotinia
sclerotiorum on cabbage.
D-33 Brassicas, Downy Mildew - Symptoms of downy
mildew caused by the oomycete Peronospora parasitica on
broccoli head.
collard leaves.
underside of broccoli leaves.
D-29 Brassicas, Boron Deficiency - H
ollow stem symptoms on cauliflower caused by boron deficiency.
D-28 Brassicas, Black Rot - Black discoloration of veins
caused by the bacterium Xanthomonas campestris pv. campestris on broccoli leaf.
D-036 Brassicas, Yellows - One-sided leaf chlorosis and
distortion of cabbage leaf caused by one of two strains of
Fusarium oxysporum.
35
D-43 Celery, Heart Rot - Leaf distortion caused by calcium deficiency.
D-41 Carrot, Root-Knot Nematode - Symptoms of infection with the nematode Meloidagyne hapla on carrot roots.
D-39 Carrot, Bacterial Leaf Blight - S ymptoms of leaf
blight caused by the bacterium Xanthomonas campestris pv.
carotae.
D-42 Celery, Heart Rot - Underdeveloped hearts caused
by calcium deficiency can provide entry points for bacterial
soft rot organisms.
D-44 Chard, Cercospora Leaf Spot - L
eaf spots caused by
the fungus Cercospora beticola on Swiss chard foliage.
D-40 Carrot, Black Root Rot - C
ankers caused by the
fungus Thielaviopsis basicola on carrot roots.
D-38 Carrot, Alternaria Leaf Blight - Symptoms of leaf
blight caused by the fungus Alternaria dauci on carrot foliage.
D-37 Calabasa, Black Rot - Symptoms of black rot caused
by the fungus Didymella bryoniae on calabasa fruit.
D-45 Corn, Northern Corn Leaf Blight - Long, tan or
grayish lesions running parallel to leaf margins caused by
the fungus Exserohilum turcicum.
36
D-52 Cucurbits, Angular Leaf Spot - S hot-hole damage
caused by severe infection by the bacterium Pseudomonas
syringae pv. lachrymans on winter squash.
D-48 Corn, Smut - Corn smut caused by the fungus Ustilago maydis on corn ear.
D-50 Corn, Stewart’s Wilt - Young corn plant killed by
the Stewart’s Wilt bacterium Pantoea (Erwinia) stewartii.
D-51 Cucurbits, Angular Leaf Spot - A
ngular, irregularly
shaped leaf lesions with yellow haloes caused by the bacterium Pseudomonas syringae pv. lachrymans on cucumber.
D-53 Cucurbits, Anthracnose - Leaf spots on cucumber
foliage caused by the fungus Colletotrichum orbiculare.
D-49 Corn, Stewart’s Wilt - Wavy elongated, bleached
tissue characteristic of Stewart’s Wilt caused by the bacterium Pantoea (Erwinia) stewartii.
D-47 Corn, Rust - Rust pustules caused by the fungus
Puccinia sorghi on corn leaf.
D-46 Corn, Northern Corn Leaf Blight - Long, narrow
lesions with dark green-black sporulation by the fungus
Exserohilum turcicum.
D-54 Cucurbits, Anthracnose - Stem lesions on cucumber caused by the fungus Colletotrichum orbiculare.
37
D-61 Cucurbits, Black Rot - Lesions caused by the fungus
Didymella bryoniae on acorn squash fruit.
D-57 Cucurbits, Bacterial Wilt - Symptoms on cucumber
caused by the bacterium Erwinia tracheiphila.
Didymella bryoniae on winter squash fruit.
Didymella bryoniae on pumpkin fruit .
D-58 Cucurbits, Belly Rot - Sunken, brick-colored lesions
on cucumber caused by the fungus Rhizoctonia solani.
D-56 Cucurbits, Bacterial Fruit Blotch - L
arge, olivegreen discoloration of watermelon fruit caused by the bacterium Acidovorax citrulli.
D-55 Cucurbits, Anthracnose - F
ruit lesions caused by
the fungus Colletotrichum orbiculare on watermelon. Under
moist conditions salmon-colored sporulation is produced.
Didymella bryoniae on butternut fruit.
D-63 Cucurbits, Deer Damage - Damage to pumpkin
caused by deer feeding
38
Kathryne L. Everts, Univ. MD and Univ. DE
D-70 Cucurbits, Fruit Rot - Secondary rot of pumpkin
fruit caused by fungi in the genera Alternaria and Fusarium.
D-66 Cucurbits, Downy Mildew - Early symptoms on
underside of winter squash leaf caused by the oomycete
Pseudoperonospora cubensis.
D-68 Cucurbits, Downy Mildew - Symptoms in winter
squash field caused by the oomycete Pseudoperonospora
cubensis.
D-69 Cucurbits, Fruit Abortion - Squash fruit abortion
caused by lack of pollination.
D-71 Cucurbits, Fusarium Rot - Lesions on pumpkin
fruit caused by fungi in the genus Fusarium.
Wade Elmer, CT Agriculture Experiment Station
D-67 Cucurbits, Downy Mildew - Symptoms on watermelon caused by the oomycete Pseudoperonospora cubensis.
D-65 Cucurbits, Downy Mildew - A ngular lesions with
dark sporulation on leaf undersides caused by the oomycete
Pseudoperonospora cubensis on cucumber.
D-64 Cucurbits, Downy & Powdery Mildews - S porulation of powdery mildew (white) and downy mildew (brown)
on underside of muskmelon leaf.
D-72 Cucurbits, Fusarium Wilt - Wilt symptoms with
stem necrosis and oozing caused by the fungus Fusarium
oxysporum f. sp. melonis on muskmelon.
39
D-79 Cucurbits, Ozone Injury - Yellowing or bleaching
of interveinal leaf tisue caused by excessive ozone in the
atmosphere.
Gerald E. Brust, University of Maryland
D-75 Cucurbits, Gummy Stem Blight - F
oliar phase of
Black rot caused by the fungus Didymella bryoniae on watermelon leaf.
D-78 Cucurbits, Manganese Toxicity - S mall lesions with
water-soaked edges caused by manganese toxicity pictured
on muskmelon.
D-77 Cucurbits, Leaf Blight - C
ircular brown spots with
tan to white centers on muskmelon foliage caused by the
fungus Alternaria cucumerina.
D-80 Cucurbits, Phytophthora Blight - S ymptoms of
fruit rot caused by the oomycete Phytophthora capsici on
watermelon.
D-76 Cucurbits, Gummy Stem Blight - P
ycnidia (fungal
fruiting structures) of the fungus Didymella bryoniae on
stems of watermelon.
Wade Elmer, CT Agricultural Experiment Station
Franklin Schales, University of Maryland,
Keith Burnell, Syngenta, Inc.
D-74 Cucurbits, Fusarium Wilt - Symptoms on vines of
pumpkin plants caused by Fusarium solani f. sp. cucurbitae.
D-73 Cucurbits, Fusarium Wilt - W
ilt symptoms caused
by the fungus Fusarium oxysporum f. sp. niveum on watermelon plant.
D-81 Cucurbits, Phytophthora Blight - Fruit rot symptoms caused by the oomycete Phytophthora capsici on
pumpkin.
40
D-88 Cucurbits, Plectosporium - Lesions on pumpkin
fruit caused by the fungus Plectosporium tabacinum.
D-84 Cucurbits, Phytophthora Blight - Dense, white
sporulation of the oomycete Phytophthora capsici on cucumber fruit.
D-86 Cucurbits, Plectosporium - Lesions on summer
squash vines caused by the fungus Plectosporium tabacinum.
D-87 Cucurbits, Plectosporium - W hite, scabby lesions
on zucchini fruit and stem caused by the fungus Plectosporium tabacinum.
D-89 Cucurbits, Plectosporium - Severe infection of
pumpkin fruit by the fungus Plectosporium tabacinum.
D-85 Cucurbits, Phytophthora Blight - W
ater-soaked lesions with white sporulation of the oomycete Phytophthora
capsici on muskmelon.
D-83 Cucurbits, Phytophthora Blight - Fruit rot symptoms on summer squash caused by the oomycete Phytophthora capsici.
D-82 Cucurbits, Phytophthora Blight - Crown rot and
plant collapse of summer squash caused by the oomycete
Phytophthora capsici.
D-90 Cucurbits, Powdery Mildew - W hite sporulation
on upper and lower leaf surfaces of cucumber caused by the
oomycetes Podosphaera xanthii and Erysiphe cichoracearum.
41
D-96 Cucurbits, Scab - Sunken, oozing lesions caused by
the fungus Cladosporium cucumerinum on cucumber fruit.
D-95 Cucurbits, Scab - Fruit lesions caused by Cladosporium cucucmerinum on summer squash.
D-98 Cucurbits, Virus - Symptoms of a mosaic virus on
pumpkin foliage.
D-94 Cucurbits, Scab - Leaf lesions caused by the fungus
Cladosporium cucucmerinum infecting summer squash.
D-97 Cucurbits, Septoria Leaf Spot - Leaf lesions caused
by the fungus Septoria cucurbitacearum on cucumber.
D-93 Cucurbits, Pythium Cottony Leak - W hite, fluffy
mycelial growth of oomycetes in the genus Pythium on cucumber fruit.
D-92 Cucurbits, Powdery Mildew - Symptoms on foliage
of winter squash caused by the oomycetes Podosphaera xanthii and Erysiphe cichoracearum.
D-91 Cucurbits, Powdery Mildew - W hite, sporulating
lesions on pumpkin leaf caused by the oomycetes Podosphaera xanthii and Erysiphe cichoracearum.
D-99 Cucurbits, Virus - Mottling and distortion cuased
by Zucchini Yellow Mosaic Virus (ZYMV).
42
D-106 Eggplant, Verticillium Wilt - Healthy (lower) and
symptomatic stem tissue (upper) showing vascular discoloration
caused by the fungi Verticillium dahliae and V. albo-atrum.
D-102 Eggplant, Anthracnose - Sunken, dark lesions
caused by Colletotrichum on eggplant fruit.
D-104 Eggplant, Pythium Cottony Leak - F
ruit rot of
eggplant caused by oomycetes in the genus Pythium.
D-105 Eggplant, Verticillium Wilt - Symptoms of Verticillium wilt on eggplant foliage.
Bruce Watt, University of Maine
D-103 Eggplant, Phytophthora Blight - Crown rot
symptoms caused by the oomycete Phytophthora capsici on
eggplant.
D-101 Cucurbits, Woodchuck Damage - D
amage to
pumpkin caused by woodchuck feeding.
D-100 Cucurbits, Wind Burn - Injury to cucumber leaves
caused by excessive wind.
D-107 Garlic, Bloat Nematode - Yellowed leaves and dry
rot of basal plate caused by infection with the nematode
Ditylenchus dipsaci.
D-108 Lettuce, Bottom Rot - S unken, reddish-brown
lesions on leaf petioles and midribs caused by the fungus
Rhizoctonia solani.
43
D-115 Parsnip, Leaf Blight - Symptoms of leaf blight
of parsnip caused by Rhizoctonia spp. and Ascochyta spp.
fungi.
D-114 Parsnip, Itersonilia Blight - S ymptoms of Itersonilia blight caused by the fungus Itersonilia perplexans on
parsnip roots.
D-113 Parsnip, Bacterial Soft Rot - V
ascular discoloration caused by the bacterium Pseudomonas marginalis.
D-111 Okra, Verticillium Wilt - Yellowing, wilt, and
plant collapse caused by the fungus Verticillium dahliae.
D-116 Pea, Bacterial Blight - A ngular leaf lesions caused
by the bacterium Pseudomonas syringae pv. pisi
D-112 Parsley, Septoria Leaf Spot - Tan lesions with
dark pycnidia in their centers caused by the fungus Septoria
petroselini.
D-110 Lightning - Dead area in a pepper field caused by a
lightning strike.
D-109 Lettuce, Septoria Blight - Brown, necrotic lesions
with yellow haloes and black pycnidia in their centers are
caused by the fungus Septoria lactucae.
D-117 Pea, Leaf and Pod Spot - Tan sunken lesions
caused by the fungus Ascochyta pisi on pea pods.
44
D-122 Pepper, Bacterial Spot - Leaf spots on pepper foliage caused by the bacterium Xanthomonas campestris pv.
vesicatoria.
D-123 Pepper, Bacterial Spot - Symptoms on foliage and
fruit caused by the bacterium Xanthomonas campestris pv.
vesicatoria.
D-121 Pepper, Bacterial Soft Rot - Soft rot of pepper fruit
caused by bacteria in the genus Erwinia.
D-124 Pepper, Bacterial Spot - Symptoms on pepper
fruit caused by the bacterium Xanthomonas campestris pv.
vesicatoria.
D-120 Pepper, Anthracnose - Sunken lesions on fruit of
all stages develop salmon-colored sporulation of the fungus
Colletotrichum acutatum.
D-119 Pepper, Anthracnose - Sunken, dark lesions caharacteristic of the fungus Colletotrichum coccodes on ripe
pepper fruit.
D-118 Pea, Rhizoctonia Root Rot - Symptoms of root rot
on pea caused by the fungus Rhizoctonia solani.
D-125 Pepper, Bacterial Spot - Leaf drop of pepper
caused by infection by the bacterium Xanthomonas campestris pv. vesicatoria.
D-126 Pepper, Cucumber Mosaic Virus - CMV symptoms on pepper fruit.
45
D-133 Potato, Early Blight - Target-like lesions on leaf
tissue caused by the fungus Alternaria solani.
D-129 Pepper, Root-Knot Nematode - Stunting of pepper
plants caused by root infection by the nematode Meloidagyne hapla.
D-132 Pepper, Sunscald - A lternaria alternata, a weak
fungal pathogen, commonly infects fruit that has been injured by sunscald causing blackening.
D-131 Pepper, Sunscald - Injury to pepper fruit caused by
excessive exposure to sunlight.
D-130 Pepper, Root-Knot Nematode - Galls on pepper
roots caused by the nematode Meloidagyne hapla
D-128 Pepper, Phytophthora Blight - Crown rot of pepper caused by the oomycete Pytophthora capsici resulting in
plant collapse.
D-127 Pepper, Impatiens Necrotic Spot Virus R ingspots on pepper foliage caused by INSV.
D-134 Potato, Late Blight - Brown, water-soaked leaf
lesions caused by the oomycete Phytophthora infestans on
potato foliage.
D-135 Potato, Scab - Symptoms of scab on potato tuber
caused by the bacterium Streptomyces scabies.
46
D-142 Sweet Potato, Scurf - Gray-brown lesions on
surface of sweet potato tubers caused by the fungus Monilochaetes infuscans.
D-141 Sweet Potato, Pox - Soil rot causing sunken lesions
and distortions on sweet potato tubers caused by the bacterium Streptomyces ipomoeae.
D-143 Tomato, Anthracnose - S unken black lesions on
tomato fruit caused by the fungus Colletotrichum coccodes.
D-140 Sweet Potato, Fusarium Wilt - Chlorotic, wilted
plant infected with the fungus Fusarium oxysporum f. sp.
batatas.
D-138 Spinach, White Rust - Chlorotic lesions caused by
the fungus Albugo occidentalis on the upper leaf surface.
D-139 Sweet Potato, Black Rot - Dark, firm lesions on
sweet potato tubers caused by the fungus Ceratocystis fimbriata
D-137 Spinach, Downy Mildew - Sporulation of Peronospora farinosa f. sp. spinaciae on the underside of spinach
leaves.
D-136 Spinach, Anthracnose - Tan, necrotic lesions
caused by the fungus Colletotrichum dematium f. sp. spinaciae.
D-144 Tomato, Bacterial Canker - W
ilt symptoms caused
by the bacterium Clavibacter michiganensis subsp. michiganensis. Note wilting on one side of leaf, a characteristic
early symptom.
47
D-152 Tomato, Bacterial Spot - B
rown, rough spots on
tomato fruit caused by the bacterium Xanthomonas campestris pv. vesicatoria.
D-150 Tomato, Bacterial Speck - S mall, black lesions on
tomato fruit caused by the bacterium Pseudomonas syringae
pv. tomato.
D-149 Tomato, Bacterial Diseases - B
acterial fruit spots
on tomato. Clockwise from upper left: Bacterial Canker
(Clavibacter michiganensis subsp. michiganensis), Bacterial
Spot (Xanthomonas campestris pv. vesicatoria), Bacterial
Speck (Pseudomonas syringae pv. tomato).
D-148 Tomato, Bacterial Canker - “ Bird’s-eye” lesions
on green tomato fruit caused by the bacterium Clavibacter
michiganensis subsp. michiganensis.
D-151 Tomato, Bacterial Spot - L
eaf spots caused by the
bacterium Xanthomonas campestris pv. vesicatoria.
D-147 Tomato, Bacterial Canker - “ Bird’s-eye” lesions
on ripe tomato fruit caused by the bacterium Clavibacter
michiganensis subsp. michiganensis.
D-146 Tomato, Bacterial Canker - S tem canker with
droplet of bacterial ooze in its center caused by the bacterium Clavibacter michiganensis subsp. michiganensis.
D-145 Tomato, Bacterial Canker - D
iscoloration of vascular element of tomato stem infected with the bacterium
Clavibacter michiganensis subsp. michiganensis.
D-153 Tomato, Blossom End Rot - F
ruit injury caused by
calcium deficiency.
48
D-159 Tomato, Fruit Cracking - Concentric and radial
cracks in tomato fruit caused by excessive moisture during
fruit expansion.
D-158 Tomato, Early Blight - L
esions caused by the fungus Alternaria solani develop in lower leaves and progresses
upward over time.
D-157 Tomato, Early Blight - B
rown-black leaf lesions
with target-like appearance caused by the fungus Alternaria
solani.
D-160 Tomato, Fruit Cracking - Concentric and radial
cracks in tomato fruit caused by excessive moisture during
fruit expansion.
D-156 Tomato, Early Blight - B
rown-black leaf lesions
with target-like appearance caused by the fungus Alternaria
solani.
D-155 Tomato, Catfacing - F
ruit injury caused by cool
temperatures (below 60°F) during flower bud initiation.
D-154 Tomato, Blotchy Ripening - P
hysiological disorder
also known as Greywall caused by any environmental stress
that slows plant growth.
D-161 Tomato, Fusarium Wilt - V
ascular discoloration
caused by the fungus Fusarium oxysporum f. sp. Lycopersici.
D-162 Tomato, Ghost Spot - Light, ring spots on tomato
fruit caused by the fungus Botrytis cinerea.
49
D-169 Tomato, Pitch Necrosis - V
ascular discoloration,
internal stem necrosis and adventitious roots form as a result of infection with the bacterium Pseudomonas corrugata.
D-165 Tomato, Late Blight - Brown, water-soaked, firm
fruit rot caused by the oomycete Phytophthora infestans.
D-168 Tomato, Phytophthora Blight - B
rown, watersoaked, firm fruit rot known as “Buckeye Rot” caused by the
oomycete Phytophthora capsici.
D-167 Tomato, Leaf Mold - Velvety, olive-green to brown
spots on lower leaf surface caused by the fungus Fulvia
fulva.
D-170 Tomato, Powdery Mildew - Small spots of white
sporulation of the oomycete Oidium neolycopersici on tomato leaf.
D-166 Tomato, Leaf Mold - P
ale, yellow leaf spots caused
by the fungus Fulvia fulva.
Joan Allen, University of Connecticut
D-164 Tomato, Late Blight - S tem lesion caused by the
oomycete Phytophthora infestans.
D-163 Tomato, Late Blight - Dark brown-olive green,
water soaked lesions caused by the oomycete Phytophthora
infestans.
D-171 Tomato, Pythium Rot - Soft, watery rot with some
white sporulation of oomycetes in the genus Pythium.
50
D-178 Tomato, Verticillium Wilt - Y
ellow blotches with
brown veins on tomato foliage caused by the fungus Verticillium albo-atrum.
D-179 Tomato, White Mold - S oft rot of tomato fruit
caused by the fungus Sclerotinia sclerotiorum. Note white,
fluffy mycelia and hard, black sclerotia.
D-177 Tomato, Tospovirus - T
omato spotted wilt virus
and impatiens necrotic spot virus cause dark brown spots or
streaks followed by tip dieback on tomato foliage.
D-176 Tomato, Tobacco Mosaic Virus - Symptoms of
TMV are highly variable on leaves and fruit. Fruit may be
unaffected, small, or may show these “brown wall” symptoms in severe cases.
D-174 Tomato, Southern Blight - T
an to brown, mustard
seed-like sclerotia are produced by the fungus Sclerotium
rolfsii at the soil line of infected tomato stems.
D-175 Tomato, Stitching - Fine cracks that callus over on
tomato fruit shoulders caused by cool temperatures during
tomato flower bud initiation.
Franklin Schales, University of Maryland
D-173 Tomato, Septoria Leaf Spot - Dark leaf spots
caused by the fungus Septoria lycopersici have tan centers
with black spots (pycnidia) in their centers.
D-172 Tomato, Rain Check - Fine cracks that callus over
on tomato fruit shoulders caused by excessive moisture.
D-180 Tomato, White Mold - S tem rot on tomato caused
by the fungus Sclerotinia sclerotiorum. Note the hard, dark
sclerotia inside the stem.
David Handley (ME)
David Handley (ME)
James Dill (ME)
SI-3 Tarnished Plant Bug - Damage SI-8 Twospotted Spider Mites - T
etranychus urticae David Handley (ME)
SI-6 Thrips - Damage David Handley (ME)
SI-5 Tarnished Plant Bug - Nymph Lygus lineolaris Marvin Pritts (NY)
David Handley (ME)
James Dill (ME)
SI-4 Tarnished Plant Bug - Adult Lygus lineolaris SI-7 Thrips (Eastern Flower Thrips) - Th
ysanoptera spp. 51
SI-2 Strawberry Bud Weevil - Damage Mary Jean Welser (NY)
Strawberry Insects & Diseases t
SI-1 Strawberry Bud Weevil - A
nthonomus signatus SI-9 Twospotted Spider Mites - Damage NYSAES
David Handley (ME)
Marvin Pritts (NY)
SI-12 Potato Leaf Hopper - Adult Empoasca fabae SI-15 Strawberry Rootworm - Adult Paria canella SI-17 Black Vine Weevil - Adult Otiorhynchus sulcatus Marvin Pritts (NY)
David Handley (ME)
SI-14 Cutworm - Damage to blossom James Dill (ME)
David Handley (ME)
Marvin Pritts (NY)
SI-13 Spittlebug - Philaenus spumaris SI-16 Strawberry Root Weevil - Adult Otiorhynchus
ovatus 52
SI-11 Potato Leaf Hopper - Damage David Handley (ME)
SI-10 Cyclamen Mite Injury - Steneotarsonemus pallidus SI-18 Black Vine Weevil - Larvae & Pupae O
tiorhynchus
sulcatus James Dill (ME)
U of Maine
Marvin Pritts (NY)
James Dill (ME)
SI-21 Slug Alan Eaton, University of New Hampshire
NYSAES
SD-3 Anthracnose Fruit Rot - Colletotrichum Marvin Pritts (NY)
SD-1 Gray Mold - Botrytis cineria SI-23 Strawberry Sap Beetle - S telidota geminata, - l arvae
Cathy Heidenreich (NY)
SI-22 Strawberry Sap Beetle - S telidota geminata SD-2 Leather Rot - P
hytophthora cactorum 53
SI-20 White Grub - Various Wayne Wilcox (NY)
SI-19 Root Weevil - Damage SD-4 Anthracnose Crown Rot - Colletotrichum David Handley (ME)
David Handley (ME)
SD-7 Leaf Spot - M
ycosphaerella fragariae Marvin Pritts (NY)
SD-10 Red Stele Root Rot - Root - Phytophthora fragaria SD-12 Verticillium Wilt - Verticillium albo-atrum Marvin Pritts (NY)
SD-9 Powdery Mildew - S phaerotheca macularis
David Handley (ME)
Cathy Heidenreich, Cornell University
David Handley (ME)
SD-8 Leaf Scorch - D
iplocarpon earliana SD-11 Red Stele Root Rot - Field Phytophthora fragaria 54
SD-6 Angular Leaf Spot - Xanthomonas fragariae David Handley (ME)
SD-5 Phomopsis leaf blight, caused by Phomopsis obscurans, on strawberry leaf
SD-13 Black Root Rot - Various Fungi
SD-17 Sunscald David Handley (ME)
David Handley (ME)
Wayne Wilcox (NY)
David Handley (ME)
SD-16 Green Petal - MLO Marvin Pritts (NY)
SD-15 Slime Mold - Various Fungi
55
SD-14 Black Root Rot - Root Symptoms, Various Fungi
SD-18 Winter Injury - In Crown
SD-19 Frost - Damage to Blossoms
Back Cover Photos (left to right):
Front Cover Photos (left to right):
Watermelon, Powdery Mildew - A
nthony P. Keinath, Clemson University
Pumpkin Fruit Fusarium - Wade Elmer, CT Agricultural Experiment Station
Northern Corn Rootworm - Michael Hoffman, Cornell University
Tomato Bacterial Diseases - Robert L. Wick, University of Massachusetts
Colorado Potato Beetle - Ruth Hazzard, University of Massachusetts
Bean Leaf Beetle- Martin Spellman
Shepherdspurse – Brad Majek, Rutgers University
European Corn Borer - Ruth Hazzard, University of Massachusetts
Sunscald on Strawberries - Cathy Heidenreich (NY)
Fruit Abortion on Summer Squash - John Howell, University of Massachusetts
This guide is a project of the Northeast IPM Vegetable Working Group.

2016 Pest ID Guide - New England Vegetable Guide

Transcription

Similar documents