Insects

Publication date: Jan. 9, 2023

Adult Asian chestnut gall wasp.Photo: Gyorgy Csoka, Hungary Forest Research Institute, Bugwood.org Distribution and hostsThe gall wasp, Dryocosumus kuriphilus Yasumatsu, was introduced into North America in 1974 on imported chestnut cuttings. A ...

Publication date: April 5, 2022

Some of the most easily observed insects in our backyards and gardens are caterpillars. Because they cannot fly or run away, we can approach and observe closely the behavior of these immature insects. Many children (and adults too) are intrigued by ...

Publication date: April 5, 2022

The boxelder bug, Boisea trivittata, lives outside but may invade homes as temperatures cool in the fall each year. This bug is distinctive in its appearance and coloration (Figure 1). Adult bugs are about 1/2-inch long and 1/6-inch wide. They are ...

Publication date: April 5, 2022

Small branches accumulating on the ground and the presence of clean-cut twigs, and in some cases dangling (flagged) branch tips within a tree, indicate the presence of beetle pests referred to as twig girdlers and twig pruners. Both of these ...

Publication date: April 5, 2022

This publication discusses some of the least-toxic control options you can use for pests of houseplants, home greenhouses and interior plantscapes. Many of these tactics are recommended for homeowners who want to manage pests without using ...

Publication date: March 18, 2022

Reviewed by Manoj ChhetriMU Extension Horticulture Field SpecialistBrad S. Fresenburg and Erik H. ErvinDepartment of HorticultureCalibrating sprayers and spreaders is one of the most important steps in proper application of pesticides for turf pest ...