BIOLOGY: Adults are 4-5 mm and have large zebra striped wings. Larvae are C shaped and found inside Canada thistle s...

BIOLOGY: Adults are long and slender (10-12 mm) with long black antennae, red heads, and grey bodies. They are activ...

BIOLOGY: Gall flies are very small and look similar to a tiny mosquito. Adults are difficult to find and are better ...

BIOLOGY: Adults emerge in late summer and live for up to 3 years. Adults are 8-12 mm long. Eggs are laid from June –...

BIOLOGY: Adults are small, brown weevils 3-4 mm long with a rounded body. Larvae are small and found inside Canada t...

BIOLOGY: Adults emerge from soil in April and June. Adults are 3-5 mm long and orange with brown stripes along the w...

BIOLOGY: Adults emerge from soil in late May and are present through August. They are hairy and brown with white str...

BIOLOGY: Gall wasps are small and black. They do not have stingers. Adults emerge in early spring around April – May...

BIOLOGY: P. punctiformis is a naturalized fungus infecting Canada thistle. The rust fungus undergoes four life cycle...

BIOLOGY: A. malherbae are visible when viewed under a microscope. They are yellow to white in color. Nymphs are simi...

BIOLOGY: Mature larvae are small, green caterpillars with three dark stripes running the length of the body. The cat...

BIOLOGY: Adults are found on plants from May through July. They vary in color from black (A. czwalinae) to copper (A...

BIOLOGY: Adult M. janthinus emerge from stems in May, and reproduce until late June. Adults are appx. 4 mm long. Egg...

BIOLOGY: Adults are active from May to September. They are 4 to 5 mm long. Females produce 30-130 eggs in their life...

BIOLOGY: C. achates adults emerge from June to September. They are large (14-15mm long) and live for 2-3 weeks. Fema...