European hornets. Photo credit: N. Gregory

Greenhouse whitefly adult. Photo credit: D. Cappaert, bugwood

Silverleaf whitefly nymph. Photo credit: FL Division of Plant Industry, bugwood

Silverleaf whitefly adult. Photo credit: S. Bauer, USDA ARS, bugwood

Rhizomorphs of Armillaria. Photo
credit: N. Gregory

Anthracnose leaf spot on silver maple. Photo credit: N. Gregory