Twospotted spider mite, Tetranychus urticae Order: AcariFamily: Tetranychidae Description Adult females are very small, about 1.3 mm (1/20 inch), and adult males are even smaller. The mites are usually light yellow or green with two dark dots on both sides of their...
Grasshoppers in hemp Order: OrthopteraFamily: Acrididae Description The redlegged grasshopper (Melanoplus femurrubrum) can be shades of red, brown, yellow, green, and olive green. These grasshoppers have a pointed spur located between the base of the forelegs and can...
Hemp russet mite, Aculops cannibicola Order: AcariFamily: Eriophyidae Description Hemp russet mites are very small and have cylindrical bodies that taper sharply at the rear. These mites cannot be seen without a lens capable of at least 15-20x magnification. They are...
European corn borer, Ostrinia nubilalis Order: LepidopteraFamily: Crambidae Description Male moths are visibly darker and slightly smaller than the pale yellow female moths. Adults have an average wingspan of about 25 mm (1 inch). The forewings of both genders have...
Eurasian hemp borer, Grapholita delineana Order: LepidopteraFamily: Tortricidae Description Eurasian hemp borer is a species of moth widespread in eastern Colorado. The moths have white lines on dull, brown, and gray wings and a wingspan of roughly 1.3 cm (0.5...
