Aster leafhopper and aster yellows Order: HemipteraFamily: Cicadellidae Description Aster leafhopper (Macrosteles quadrilineatus) is a vector of a plant pathogen, the aster yellows phytoplasma, which can cause severe disease in susceptible plants. Aster leafhoppers...
Leaf mining flies Order: DipteraFamily: Agromyzidae, Anthomyiidae Description and life history The larvae of certain fly species develop within the leaves or needles of host plants. These pests often create different mining patterns, such as serpentine leaf mines that...
Corn earworm, Helicoverpa zea Order: LepidopteraFamily: Noctuidae Description Corn earworm moths have a wingspan of about 2.5-3.8 cm (1-1.5 inches) and are white or tan with irregular wing markings. These moths are nocturnal and can often be found resting beneath...
Flea beetles Order: ColeopteraFamily: Chrysomelidae Description Flea beetles are small insects that can jump when threatened. They are beetles, have sclerotized pair of hind wings and chewing mouthparts. Adults range in length from 1.75-4.3 mm (1/15–1/6 inch) and have...
Hornworms Order: LepidopteraFamily: Sphingidae Description Hornworms are among the largest caterpillars found in Colorado, with some species reaching lengths of up to 7.5 cm (3 inches). Many hornworms have a spine or horn at the rear, while some species have markings...
