Arthropod Diagnostic Guide

Select crop type first:

Alfalfa Caterpillar

Alfalfa

Alfalfa caterpillar: Green larvae with white and pink band on either side of abdomen, and can have 2 white lines running down the back.

Alfalfa Caterpillar

Alfalfa

Alfalfa caterpillar: Green larvae with white and pink band on either side of abdomen, and can have 2 white lines running down the back.

Alfalfa Weevil

Alfalfa

Adult alfalfa weevil: Brown with a dark stripe down the back, and dark brown stripe on head with a pale line running through it. Prominent weevil snout. 3/16" long.

Alfalfa Weevil

Alfalfa

Adult alfalfa weevil: Brown with a dark stripe down the back, and dark brown stripe on head with a pale line running through it. Prominent weevil snout. 3/16" long.

Alfalfa Weevil

Alfalfa

Adult alfalfa weevil: Brown with a dark stripe down the back, and dark brown stripe on head with a pale line running through it. Prominent weevil snout. 3/16" long.

Army Cutworm

Canola

Army cutworm feeding will result in small to large holes in leaves.

Army Cutworm

Canola

Army cutworm feeding will result in small to large holes in leaves.

Army Cutworm

Wheat

Army cutworm feeding on wheat will result in small to large holes in leaves, and severing at the crown.

Banks grass mite

Wheat

Banks grass mite: The feeding damage results in yellowing, then dry, necrotic areas. Mite webbing can be found where they are/have been present.

Bean Leaf Beetle

Soybean

Bean leaf beetle: Adult beetles are white-grey, to orange, or red color variations. Beetles have 4 black spots and a black margin around the back.