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Insects

Adelgids

Adelgids are tiny sized that look similar to aphid insects, frequently will cause unusual swellings called galls on conifer trees. Conifers are trees and shrubs that bear cones such as...

Ants

Many kinds of ants live in highly organized colonies in the soil, under rocks, and in tree cavities. Most types don’t eat plants, but instead cause trouble by driving away...

Aphids

Aphids come in a variety of colors and are small, pear-shaped, and soft-bodied, these slow-moving sucking insects usually congregate in clusters. They're sitting ducks for many natural enemies-but nonetheless, they...

Armyworms

 Active at night and on overcast days, armyworms get their name from their habit of marching in troops, devouring vegetation in their path. Several species of these hairless caterpillars cause...

Asian Ladybeetles

Asian Longhorn Beetle

In their larval stage, numerous types of beetles and some clear wing moths tunnel beneath bark or bore into live wood. Some borers tunnel deep into a branch, making it...

Asparagus Beetles

As the name implies, these pests—both adults and larvae prefer asparagus to all other foods. The adults, reaching about ¼ inch long, are blue-black mottled with yellowish orange. The plump,...

Bagworms

The dangling silken bags, reaching a length of 2 inches, are more noticeable than the small brown caterpillars—each of which weaves its own bag and drags it along as it...

Beetles

Billbugs

Billbugs
Several billbug species are found in lawns, they all have long, and forward-pointing snout gives this dark, slow-moving, ½ inch long weevil its name. The real pests, though, are the...

Blister Beetles

Although markings vary greatly depending on the species, blister beetles are easily identified by their physique: the middle section of the body is noticeably smaller than the head or abdomen....

Boxelder Bugs

Cabbage Loopers

Green with pale stripes, this caterpillar has legs at the front and back, but more in the middle―a peculiarity that gives it a characteristic humpback or looping crawl. Fully grown,...

Cankerworms

Also called inchworms for their looping motion, these 1 inch long pests are found in all but the southernmost parts of the country. Spring cankerworm moths show up in spring,...

Centipedes

Chinch Bugs

This true bug sucks sap from grasses; it’s attracted to poorly grown lawns. Chinch bugs start out pinhead-size and bright red, with a white band across the back; they darken...

Cicadas

These 1 to 2 inch long aphid relatives have a black or mottled body, prominent reddish eyes, short antennae, and transparent wings, Periodical cicadas appear in late spring or early...

Cockroaches

Codling Moths

Colorado Potato Beetle

Though native to the Rocky Mountains, this pest long ago spread to all other parts of the United States except California and Nevada. The 3/8-inch long adult beetle is easy...