Contains a very good page about Horticultural Myths and another page with horticultural fact sheets in pdf format. By Linda Chalker-Scott, Ph.D. Washington State University Extension Urban Horticulturist & Associate Professor.
Staffed by user-friendly scientists answering questions are about the risk of a pesticide - about safe use of a pesticide technical/chemical information on labels - signs of pesticide poisoning - etc.
Plant and Pest Diagnostic Laboratory (P&PDL) at Purdue University provides rapid and accurate identification of pests and problems associated with plants, as well as other types of vertebrate and invertebrate pests.
The Science & Environment Collection of the Michigan Electronic Library provides selected - dynamic Internet resources to meet the needs and interests of librarians and citizens.