Table of Contents
Concepts of Least Toxic Pest Control
What is Least Toxic Pest Control?
Is "least toxic pest control" an oxymoron?
Straight Talk About Chemicals
Is Non-Chemical Pest Control Really Possible?
Some Non-Toxic Pest Control Methods and Materials
Pesticide Use and Safety
Understanding Insect Life Cycles
Fifteen Most Common Home Pests (in alphabetical order)
Indian Meal Moths
Mice and Rats
Wasps and Yellow Jackets
Other Less Common Pests
Least Toxic Control of House Plant Pests
Close Encounters of the Fourth Kind - Exterminators
Least Toxic Pest Control in Schools
Least Toxic Lawn Care
Sources of "Least Toxic" Products
A Few Good Books
For More Information
Excerpt from Carpenter Ants, page 26
1. Locating Nests
The key to "least toxic" carpenter ant control is locating the nest or nests. Once a nest is located, a "spot" treatment can be made using a small amount of a "least toxic" insecticide. There may be one or several nests in a home, and other nests outside. Usually an outside nest in, for example, an old stump, will be the source of the nests inside the house. Finding the nest is not always easy but makes for an interesting adventure. The most productive method for locating nests is to follow trails of foraging ants. These trails will include ants going in both directions.
One direction will almost always head to their "feeding grounds." You will know you are headed in this direction if the trail gradually fans out and disappears.
A trail headed towards a nest will remain well defined until it disappears into a crack in a building or a stump, or some other type of wood in which the ants are nesting. Many times ants headed towards a nest will be carrying bugs or bug parts.
Often, though not always, the nest in a building will be near the crack through which they enter the building. Occasionally, the nest may be quite some distance from their point of entry.
As carpenter ants are most active at night, you will have best results following trails if you look at dusk or later on evenings when the temperature is 60 degrees or above. These trails generally follow the same routes throughout the summer, so if you get discouraged one night, you can pick up their trails where you left off on another evening.