Diseases, insects and weeds

Choose a crop below to see diseases, insects & weeds.

Barley

Canola

Corn

Fruits

Potatoes

Pulses

Soybeans

Wheat

Bacterial Ring Rot

Bacterial ring rot

Bacterial ring rot

Black dot of potato

Black dot

Shoot turning yellow

Blackleg/seed piece decay

Blackleg/seed piece decay

Brown spot

Common Scab

Common Scab

Dry Rot

Early blight on potato leaves

Early blight

Early blight

Early dying complex

Early dying complex

Fusarium rot in potatoes

Fusarium rot

Fusarium rot

Late blight lesions on potato leaves

Late blight

Late blight

Pink flesh of a potato symbolic of pink rot

Pink rot

Pocket Rot

Potato leaf roll

Potato leaf roll

Pythium in potato tuber

Pythium Leak

Pythium Leak

closeup of potato with black scurf on surface

Rhizoctonia

Rhizoctonia

Seed Piece Decay

Seed piece decay

Seed piece decay

Silver scurf

Silver scurf

Skin spot

Soft rot

Verticillium Wilt

Verticillium wilt

Verticillium wilt

Fungus of white mould

White mould

White mould

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Aphids

Adult aster leafhopper

Aster leafhopper

Aster leafhopper

CPB adult and eggs

Colorado potato beetle

Colorado potato beetle

European Chafer white grub

European chafer

European chafer

European Corn Borer

European corn borer

European corn borer

Flea beetle

Flea beetle

Four-Lined Plant Bug

Four-lined plant bug

Four-lined plant bug

Potato aphid

Potato aphid

Potato flea beetle

Potato flea beetle

Potato leafhopper

Potato leafhopper

Potato leafhopper

Potato leafhopper

Potato leafhopper

Red turnip beetle

Red turnip beetle

Red turnip beetle

Tarnished plant bug

Tarnished plant bug

Tarnished plant bug

Tuber flea beetle

Tuber flea beetle

wireworm larvae

Wireworms

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Barnyardgrass

Barnyardgrass

Bindweed, field

Bindweed, field

Canada fleabane

Canada fleabane

Canada Thistle

Canada Thistle

Canola, Volunteer

Canola, Volunteer

Cleavers

Common Chickweed

Common Chickweed

Crabgrass, large (aka hairy)

Crabgrass, large (aka hairy)

Dandelion

Downy brome

Downy brome

Flixweed

Foxtail barley

Foxtail barley

Foxtail, giant

Foxtail, giant

Foxtail, green

Foxtail, green

Foxtail, yellow

Foxtail, yellow

Hawk's-beard, Narrow-leafed

Hawk's-beard, Narrow-leafed

Hempnettle, common

Hempnettle, common

Horsetail, field

Horsetail, field

Japanese Brome

Japanese Brome

Kochia

Ladysthumb

Lamb's-quarters

Lamb's-quarters

Mallow, common

Mallow, common

Milkweed, common

Milkweed, common

Mustard, wild

Mustard, wild

Mustard, wormseed

Mustard, wormseed

Nutsedge, yellow

Nutsedge, yellow

Old Witchgrass

Old Witchgrass

Persian Darnel

Persian Darnel

Pigweed, redroot

Pigweed, redroot

Proso millet

Proso millet

Purslane, common

Purslane, common

Quackgrass

Ragweed, common

Ragweed, common

Ragweed, giant

Ragweed, giant

Russian Thistle

Russian Thistle

Shepherd's-purse

Shepherd's-purse

Smartweed

Smartweed, green

Smartweed, green

Smooth Crabgrass

Smooth Crabgrass

Sowthistle, perennial

Sowthistle, perennial

Spurge, leafy

Spurge, leafy

Stinkweed

Stork's bill

Stork's bill

Toadflax

Velvetleaf

Waterhemp

Wild buckwheat

Wild buckwheat

Wild oats

Wirestem muhly

Wirestem muhly

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