Tree and shrub insects

two long hairy multicolored caterpillars on leaf — Forest tent caterpillar

Find insects and other bugs that live on, feed on, harm or help trees and shrubs.

Aphids
Ash plant bugs
Asian longhorned beetle
Birch leafminer
Bronze birch borers
Caterpillars
Cicadas
Emerald ash borer (EAB)
Galls
Honeylocust plant bugs
Japanese beetles
Lace bugs
Pine bark beetle (Forest pest; includes advice for homeowners)
Sawflies
Scale insects
Spider mites
Spongy moth
Twolined chestnut borer

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The University of Minnesota Extension yard and garden team uses research-based education to ensure beautiful and bountiful gardens that are environmentally sustainable. We educate the public about landscape design and plant selection, integrated pest management, and gardening best practices.