Content by John Ball

Black, yellow, and brown wasp in a clear container

Huge Wasps on My Tree! No, Those Still Aren’t Murder Hornets.

Another insect that has been mistaken for the Asian giant hornet (also known by its media-popularized name of ‘murder hornet’) is the horntail wasp. Horntail wasps are wood-boring insects that are harmless to humans, as they do not have venom and cannot sting.

Black insect with a white spot on the back and orange tipped legs and antennae.

A fly? A hornet? Nope, it’s a sawfly!

This spring, there have been multiple reports of people seeing large fly-like insects in their yards. These insects are sawflies, and all reports thus far have been the elm sawfly (Cimbex americana).

Emerald Ash Borer Insecticide Treatment Options

Fact sheet about insecticide treatment options for protecting ash trees against emerald ash borer.

Junior Arborist Activity Guide

The Junior Arborist Activity Guide provides objectives, content, equipment and supplies needed to complete 8 modules of arboriculture instruction, helping schools and other educational programs to create a youth arboriculture program of their own.

man watering newly planted tree with yellow bucket

Tree Watering Tips for Drought Conditions

There is no precise recipe for how much and how often trees should be watered during a drought. However, there are a few guidelines to follow.

How to Identify an Ash Tree Infested by Emerald Ash Borer

This guide will help you determine whether an ash tree may be infested by the emerald ash borer.

Choosing Firewood

This is the time of the year where many people enjoy sitting around a fire. A roaring fire provides a cheery way to spend a cold winter evening. However if you choose the wrong firewood, it could become a smoky evening with little heat but lots of sparks flying from wood that has a musky odor. You have to start with the right wood.