Tree PestCreatures That Bug Our Trees

Tommy InsleyBotany 202

Asian Longhorn Beetle Native to China. Transport to United

States in infested packing material.

Emerald Ash Borer Kill 20 million trees

in Michigan, Ohio, and Indiana.

Firewood quarantines to prevent new infestations.

Gypsy Moth Spread to U.S in

1970. Oaks and Aspens

are most common host.

Larva defoliate trees

Small mammals and birds are predators.

Western Pine Beetles Infest Ponderosa

and Coulter pine trees.Mainly Western

states

Trees loss considered normal ecological process

Acknowledgements Photos and information courtesy of the

USDA Forest Service.• forestry.about.com