WISCONSIN PEST BULLETIN

I N D E X 2 0 1 7 V O L U M E N O. 62 COMMON NAME SCIENTIFIC NAME PAGE NUMBER Alfalfa caterpillar Colias eurytheme 86, 117 Alfalfa pests 9 Alfalfa plant bug Adelphocoris lineolatus 46, 62, 133 Alfalfa weevil Hypera postica 1, 2, 8, 9, 15, 16, 23, 29, 30, 37, 38, 46, 54, 62, 71, 140 Ambrosia beetle 51, 149 American painted lady Venessa caroni 95 Aphids 68, 98 Apiary inspection 145 Apple insect weekly counts 7, 14, 21, 28, 36, 44, 52, 60, 69, 77, 84, 92, 100, 108, 115, 123, 130, 138 Apple maggot Rhagoletis pomonella 53, 56, 61, 65, 78, 80, 89, 96, 97, 105, 112, 119, 127, 135, 144 Apple mosaic virus 5, 12 Apple thread blight Corticium stevensii 3 Bacterial leaf spot 129 Bean leaf beetle Cerotoma trifurcata 32, 47 Black cutworm Agrotis ipsilon 1, 2, 3, 8, 9, 10, 15, 16, 17, 22, 24, 29, 31, 33, 37, 38, 42, 47, 55, 61, 139, 141 Black light trap weekly counts 7, 14, 21, 28, 36, 44, 52, 60, 69, 77, 84, 92, 100, 108, 115, 123, 130, 138 Black spot on rose Diplocarpon rosae 67 Black swallowtail Papilio polyxenes 91 Blossom end rot 105, 106 Blueberry maggot Rhagoletis mendax 145 Botrytis Botrytis spp. 27 Boxelder bug Boisea trivittatus 131 Boxwood blight Cylindrocladium buxicola 6, 147 Boxwood psyllid Psylla buxi 136 Broad mites Polyphagotarsonemus latus 50 Bronze birch borer Agrilus anxius 34 Brown marmorated stink bug Halyomorpha halys 1, 3, 11, 32, 50, 78, 102, 104, 117, 125, 131, 132, 134, 139, 144 Brown stink bug Euschistus servus 32 Cabbage looper Trichoplusia ni 121 Cabbage maggot Delia radicum 4, 11 Calligrapha leaf beetle Calligrapha suturella 90 Cedar-apple rust Gymnosporangium juniperi-virginianae 10

Cedar-hawthorne rust Gymnosporangium globosum 82 Cherry tree gummosis 114 Codling moth Cydia pomonella 16, 18, 22, 25, 29, 32, 40, 45, 48, 53, 56, 61, 64, 73, 81, 89, 96, 112, 119, 128, 134, 145 Colorado potato beetle Leptinotarsa decemlineata 19, 22, 26, 34, 41, 49, 75, 89 COMMON NAME SCIENTIFIC NAME PAGE NUMBER Columbine sawfly Pristiphora rufipes 76 Common asparagus beetle Crioceris asparagi 4, 9 Corn earworm Helicoverpa zea 31, 62, 73, 79, 82, 85, 94, 95, 101, 104, 106, 109, 111, 116, 124, 126, 127, 131, 133, 136, 142 Corn leaf aphid Rhopalosiphum maidis 118 Corn rootworm Diabrotica spp. 55, 63, 78, 79, 87, 101, 103, 109, 110, 116, 117, 125, 126, 131, 133, 139, 141, 150 Crown rust Puccinia coronata var avenae 20 Cucumber mosaic virus 122 Cucurbit downy mildew Pseudoperonospora cubensis 128 Daylily leaf streak Aureobasidium microstictum 35 Daylily leafminer Ophiomyia kwansonis 35 Daylily rust Puccinia hemerocallidis 90 Degree day tables 2, 9, 16, 23, 30, 38, 46, 54, 62, 65, 71, 78, 86, 94, 102, 110, 117, 125, 132 Diplodia tip blight Sphaeropsis sapinea 67 Dogwood borer Synanthedon scitula 65 Dogwood sawfly Macremphytus tarsatus 114 Eastern spruce gall adelgid Aldelges abietis 122 Eastern tent caterpillar Malacosoma americanum 2, 4, 11, 46 Emerald ash borer Agrilus planipennis 13, 140, 148 Euonymus scale Unaspis euonymi 82 European corn borer Ostrinia nubilalis 2, 8, 15, 17, 22, 29, 31, 37, 38, 45, 47, 53, 55, 61, 63, 70, 72, 78, 79, 85, 87, 94, 95, 101, 103, 109, 111, 116, 118, 126, 140, 141, 142, 150

Fall armyworm Spodoptera frugiperda 136, 146 Fall pests 131 Fall webworm Hyphantria cunea 99 Flea beetle Chaetocnema pulicaria 4, 11, 42 Fletcher scale Parthenolecanium fletcheri 58, 82 Foliar nematode Aphelenchoides sp. 106 Four lined plant bug Poecilocapsus lineatus 58, 74, 75 Frost 8, 15, 124, 131 Fusarium Fusarium sp. 12 Genetic reversion 91 Goss's wilt Clavibacter michiganensis nebraskensis 6, 142 Grape flea beetle Altica sp. 4 Grape phylloxera Daktulosphaira vitifoliae 49, 65 Grape plume moth Geina periscelidactylus 41 Grass sawfly Pachynematus sp. 30 Grasshopper 102 Green cloverworm Hypena scabra 80, 88, 112, 119, 127 Guignardia leaf blotch Guignardia sp. 137 Gypsy moth Lymantria dispar 1, 2, 6, 8, 9, 83, 107, 148 Hackberry island chlorosis 121, 122 Hail dammage 53, 80 Hemlock wooly adelgid Adelges tsugae 5 High Plains virus 75 Honey locust plant bug Diaphnocoris chlorionis 5 Hop powdery mildew Podosphaera macularis 90 Hosta virus X 19, 114, 148 Impatiens downy mildew Plasmopara obducens 6, 50, 147 Imported cabbageworm Pieris rapae 4, 12, 26, 34, 49, 58, 66 COMMON NAME SCIENTIFIC NAME PAGE NUMBER Invasive species rule 12, 147 Iris potyvirus 20 Japanese beetle Popillia japonica 53, 59, 62, 65, 73, 78, 79, 80, 82, 87, 93, 94, 95, 97, 102, 103, 104, 111, 114, 118, 119, 126, 127, 134, 140, 143, 145 June beetle Phyllophaga sp. 38 Late blight Phytophthora infestans 6, 19, 58, 61, 81, 90, 97, 113, 116, 120, 124, 128, 132, 135, 146 Lecanium scale Parthenolecanium sp. 82 Lesser peach tree borer Synanthedon pictipes 56 Lilac leaf chlorotic Virus 5, 12 Lily leaf beetle Lilioceris lilii 50 Linden leaf gall mite Eriophyid sp. 137 Magnolia scale Neolecanium cornuparvum 75, 128 Mallow sawfly Atomacera decepta 91 Maple trumpet skeletonizer Catastega aceriella 136 Mayapple rust Allodus podiphylli 42 Meadow spittlebug Philaenus spumarius 31, 47, 54 Mouse-Ear of birch 99 Multicolored Asian lady beetle 131, 132

New EAB finds 13 Non-Viable nursery stock 43 Nostoc Nostoc sp. 67, 68 Nursery inspections 5, 12, 19, 27, 34, 42, 50, 58, 67, 75, 82, 90, 98, 99, 106, 114, 121, 128, 136, 147 Oak clearwing borer Paranthrene simulans 34 Oak galls 59 Oak twig Pruner Anelaphus parallelus 107 Oak wilt Ceratocystis fagacearum 5 Obliquebanded leafroller Choristoneura rosaceana 4, 18, 26, 32, 40, 48, 56, 89, 112, 127 Onion downy mildew Peronospora destructor 120 Onion maggot Hylemya antiqua 18, 26, 27, 74, 113, 121, 128 Oriental fruit moth Grapholita molesta 25 Oystershell scale Lepidosaphes ulmi 33 Palmer amaranth Amaranthus palmeri 147 Pea aphid Macrosiphum pisi 2, 9, 16, 23, 30, 38, 54, 62, 71, 78, 86, 94, 110, 125, 132, 141 Pear scab V. pirina 76 Pestalotiopsis blight Pestalotiopsis sp. 51 Phytophtora 12 Pigweed Amaranthus spp. 147 Pine bark beetle Ips grandicollis 83 Pine-oak gall rust Endocronartium harknessii 129 Plant bug Lygus or Adelphocoris spp. 2, 5, 16, 23, 26, 30, 32, 46, 58, 62, 71, 74, 75, 78, 86, 94, 110, 125, 133 Plant Disease Diagnostic Clinic 3, 6

Plum curculio Conotrachelus nenuphar 145 Potato leafhopper Empoasca fabae 22, 23, 30, 38, 46, 49, 54, 57, 62, 64, 66, 71, 74, 78, 81, 82, 86, 89, 94, 102, 110, 117, 125, 132, 140

Potato tuber spindle viroid 146 Powdery mildew Sawadaea tulasnei 27, 90, 91, 128 COMMON NAME SCIENTIFIC NAME PAGE NUMBER Pythium 12, 143 Raspberry cane borer Oberea bimaculata 88 Red turnip beetle Entomoscelis americana 49, 66 Redbanded leafroller Argyrotaenia velutinana 4, 10, 18, 32, 48, 57 Rhizoctonia 12 Rhizosphaera needlecast Rhizosphaera pseudotsugae 51 Ringspot mosaic virus 34 Root rot 12 Rose chafer Macrodactylus subspinosus 48, 55, 56, 57, 64, 70, 76, 140 Rose mosaic virus 42 San Jose scale Quadraspidiotus perniciosus 48, 57, 64, 74, 113 Sawfly larvae 42 Scale Insects 82 Seed corn certifiation 142 Seedcorn maggot Delia platura 19 Septoria leaf spot Septoria sp. 98, 137 Shothole borer Scolytus rugulosus 136 Slugs 31, 39, 40, 56, 68, 73 Small hive beetle Aethina tumida 145 Soybean aphid Aphis glycines 31, 39, 45, 47, 55, 64, 73, 78, 79, 85, 88, 93, 104, 110, 111, 118, 127, 133, 143 Soybean cyst nematode Heterodera glycines 6, 24 Soybean leafminer Odontata horni 143 Soybean root rot Phytophthora sojae 143 Spotted cucumber beetle Diabrotica undecimpunctata 19 Spotted tentiform leafminer Phyllonorycter blancardella 3, 10, 17, 25, 32, 64, 74, 81, 119, 127, 135 Spotted wing drosophila Drosophila suzukii 41, 48, 53, 57, 61, 71, 86, 78, 88, 93, 96, 112, 135

Spruce budworm Choristoneura sp. 129 Squash bug Anasa tristis 75, 81, 90, 98, 106, 113, 128, 136, 146 Squash vine borer Melittia satyriniformis 54, 57, 65, 74 Stalk borer Papaipema nebris 47, 55 Stewart's wilt Pantoea stewartii 142 Stink bug Pentatomidae 1, 3, 11, 32, 50, 78, 96, 102, 104, 105, 111, 117, 120, 125, 131, 132, 134 Strawberry root weevil Otiorhynchus ovatus 110 Striped cucumber beetle Acalymma vittatum 33, 41, 81, 106 Sudden oak death Phytophthora ramorum 147 Tar spot of maple Rhytisma sp. 6, 107 Tarnished plant bug Lygus lineolaris 2, 16, 23, 26, 30, 32, 62, 125 Thistle caterpillar 144 Thrips Thrips sp. 18 Tobacco rattle virus 27, 148 Tomato hornworm Manduca sexta 74 True armyworm Pseudaletia unipuncta 3, 10, 17, 23, 24, 30, 37, 45, 47, 53, 63, 72 Varroa mite Varroa destructor 146 Velvet longhorned beetle Trichoferus campestris 149 Venturia shoot blight Venturia sp. 98 Verticillium wilt Verticillium sp. 121 Viburnum leaf beetle Pyrrhalta viburni 43, 46, 140 Virus in peony 27, 34 Viruses in ornamentals 148, 150 Walnut twig beetle Pityophthorus juglandis 149 COMMON NAME SCIENTIFIC NAME PAGE NUMBER Waterhemp Amaranthus tuberculatus 147 Weir's cushion rust Chrysomyxa weirii 59 Western bean cutworm Richia albicosta 55, 61, 62, 70, 72, 79, 85, 86, 94, 95, 101, 102, 102, 109, 111, 117, 118, 124, 126, 133, 142

Western conifer seed bug Leptoglossus occidentalis 131 White apple leafhopper Typhlocyba pomaria 96 White mold Sclerotinia sclerotiorum 134 White smut Ustilago sp. 27, 43 Willow pinecone gall midge Rabdophaga strobiloides 121

Wireworm 31 Xanthomonas on corn Xanthomonas vasicola pv vasculorum 142 Xanthomonas on hydrangea 76 Yellow-Bellied Sapsucker Sphyrapicus varius 99 Yellowjackets Vespula and Dolichovespula sp. 135

Wisconsin Pest Bulletin 2017 Volume No. 62  Department of Agriculture, Trade and Consumer Protection