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 weak enough to snap in a storm; others tunnel just below the bark, girdling a tree. In many cases, a...
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 headaches for gardeners; all are 1 to 2 inches long and fond of leafy...
Apple maggots, also called the railroad worm. It is very common, for infesting apples. Adult female apple maggots are small fruit flies that lay their eggs just under the skin of the apples. They can attack immature fruit starting in June or July and successive...
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 prosper, thanks to their prolific reproduction....
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 pine, spruce, hemlock, Douglas-fir, true fir, and many others. Adelgids feed by...
