By: PJ Liesch, Extension Entomology Specialist Even though insects can cause damage to our plants, not all of them are harmful. In this video, you will learn how to look for signs of insects, why identification is required, and different control options and methods. The first step in the management process of insects in yards […]
If you’ve noticed masses or writhing, dark green “caterpillars” on your pine trees this spring, you likely have an infestation of European pine sawfly. To learn more about this pest, read this article…
While Zimmerman pine moth prefers Austrian and Scots pines, it will also attack Eastern white and mugo pines in the landscape. Learn about damage caused by this pest and control strategies in this factsheet.
Spruce spider mites can attack a number of conifers including spruce, hemlock, arborvitae, larch and juniper. Learn about the life cycle and management techniques in this factsheet.
Pine root colar weevil is a destructive pest of pines, including Austrian, Scots, red and Eastern white. Learn synptoms and how to protect your trees in this factsheet.
Ips bark beetle, also known as the pine engraver, is an insect that attacks and kills weak, stressed, declining and dying pine and spruce trees. Identification and management are covered in this fact sheet.
A large and somewhat strange-looking insect, Western conifer seed bugs are less of a plant pest than they are a nusiance when they overwinter inside homes. Learn more in this factsheet.
White grubs, the larval stage of Junebugs, can be an important pest in Christmas tree and other conifer plantings. Learn to identify white grub damage, and management, in this factsheet.
Spongy moth (formerly gypsy moth) is a destructive insect when the caterpillars occur in large numbers and defoliate trees. This factsheet will help with identification and management of this pest.
Aphids are soft-bodied, insects that feed on plant sap and subsequently excrete a sugary substance that can attract ants as well as support a saprophytic fungus called sooty mold. Learn about aphids found in home gardens in this factsheet.
An indispensable resource for nursery growers, this publication identifies pests of trees and shrubs in the state plus the products available for their control.
Aphids are really fascinating insects, with bizarre lifestyles and eating habits Learn more about this large group of insects and how to manage them in the garden in this article…
