Diseases, insects and weeds

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

Barley

Canola

Corn

Fruits

Potatoes

Pulses

Soybeans

Wheat

Wheat head with small dark kernels typical of common bunt

Common bunt

Common bunt

Common root rot

Common root rot

Common root rot

Crown and foot rot

Crown and foot rot

Dwarf Bunt

Ergot

Ergot

Fusarium (seed-borne)

Fusarium (seed-borne)

Fusarium (soil-borne)

Fusarium (soil-borne)

Fusarium head blight in wheat

Fusarium head blight

Fusarium head blight

Glume blotch

Glume blotch

Internal smuts

Internal smuts

Leaf rust pustules

Leaf rust

kernels converted to spores

Loose smut

Pythium damping-off

Pythium damping-off

Seed rots

Septoria (seed-borne)

Septoria (seed-borne)

Leaves with yellow lesions

Septoria leaf spot

Septoria leaf spot

Spot Blotch

Spot Blotch

Stem rust

Stripe rust

Stripe rust

Covered smut in barley

Surface-borne smuts

Surface-borne smuts

Take-All

Tan spot

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Aphids

Army cutworm

Army cutworm

Armyworm larva on wheat

Armyworm

Adult aster leafhopper

Aster leafhopper

Aster leafhopper

Adult cereal leaf beetle

Cereal leaf beetle

Cereal leaf beetle

Dingy cutworm

Dingy cutworm

European Chafer white grub

European chafer

European chafer

Adult grasshopper

Grasshopper

Grasshopper

Midge, Orange Wheat Blossom

Midge, Orange Wheat Blossom

cutworm damage on canola

Pale western cutworm

Pale western cutworm

Redbacked cutworm larva

Redbacked cutworm

Redbacked cutworm

Wheat Stem Maggot

Wheat stem maggot

Wheat stem maggot

Adult wheat stem sawfly

Wheat stem sawfly

Wheat stem sawfly

wireworm larvae

Wireworms

Yellow Mealworm

Yellow mealworm

Yellow mealworm

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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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