Manual - Pesticide Safety
Got Pests? (Maine.gov): Pests can be insects, weeds, fungi, mice and other animals, or microorganisms, like bacteria and viruses. Before you swat, stamp, or spray, know your enemy and, most importantly, know that it is an enemy, and not a beneficial or harmless plant or animal.
Master Gardener Educational Materials (Maine Board of Pesticide Control): Includes fact sheets on everything from Ants to Understanding Pesticide Label Signal Words.