Insects and pests

The Douglas fir bark beetle is the most destructive insect pest of Douglas fir, and is the only bark beetle that atta…

Elm zigzag sawfly (EZS), Aproceros leucopoda, is an invasive insect pest from East Asia that exclusively feeds on elm…

Elongate hemlock scale, sometimes called fiorinia scale, is a significant pest of hemlock in its invaded range in eas…

Emerald ash borer was first discovered in southeastern Michigan in 2002. Accidentally introduced on solid wood packin…

Strawberry trees, or ornamental varieties in the genus Arbutus (A. unedo and Arbutus x ‘Marin…

Euonymus scale (Unaspis euonymi Comstock) is an armored scale. Armored scales s…

The European hornet (Vespa crabro) was introduced to North America in the 1840s. Since arriving, this insect…

The fall webworm, Hyphantria cunea (Drury), is a native pest of shade and ornamental trees throughout much of North A…

Ficus whitefly (Singhiella simplex), also called fig whitefly, is an invasive pest of most Ficus sp…