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Cotoneaster (Cotoneaster)-Aphid Several species See: Common Pests of Nursery Crops Cotoneaster (Cotoneaster) Aphid ...

Cotoneaster (Cotoneaster)-Cotoneaster webworm Cremona cotoneastri Pest description and crop damage The cotoneaster webworm is a dark brown caterpillar, 0.25 to 0.5 inch long. It typically ties clumps of leaves together with webbing and feeds within the ne ...

Cotoneaster (Cotoneaster)-Spider mite Several species, including Tetranychus spp. See: Common Pests of Nursery Crops Cotoneaster (Cotoneaster) Spider mite ...

Cottonwood (Populus)-Aphid See: Common Pests of Nursery Crops Cottonwood (Populus) Aphid ...

Cottonwood (Populus)-Satin moth Leucoma salicis Pest description and crop damage The adult moth is satiny white. Larvae are approximately 2 inches long when grown and reddish brown with white patches on top and tufts of hairs along the sides. They can def ...

Crabapple (Malus)-Leafroller and leaftier Fruittree leafroller (Archips argyrospila) Obliquebanded leafroller (Choristoneura rosaceana) Pest description and crop damage There are several species of leafroller and leaftier pests of Malus. These are larvae ...

Crabapple (Malus)-San Jose scale Quadraspidiotus perniciosus See: Common Pests of Nursery Crops Crabapple (Malus) San Jose scale ...

Daffodil (Narcissus)-Bulb mite Rhizoglyphus echinopus Pest description and crop damage Mature bulb mites vary from about 0.02 to 0.03 inch (0.5 to 0.9 mm) long and have four pairs of legs. Their bodies are shiny, white, somewhat transparent, and smooth wi ...

Daffodil (Narcissus)-Narcissus bulb fly Merodon equestis Pest description and crop damage The adult narcissus bulb fly is about 0.5 inch long and closely resembles a small bumblebee. The larva is yellowish-white and 0.75 inch long. The maggots burrow into ...

Dahlia (Dahlia)-Western spotted cucumber beetle Diabrotica undecimpunctata Pest description and crop damage The adult western spotted cucumber beetle is yellowish green, 0.25 inch long, and has 11 black spots on its wing covers. Mature larvae are white, e ...