Penn State Links
Here are some links through Penn State University to help you find information:
Penn State Horticulture Department
Penn State Cooperative Extension Northwest Region
Penn State Cooperative Extension Erie County
Penn State Department of Plant Pathology
Penn State Plant Pathology Fact Sheets
Penn State Plant Disease Clinic
Penn State Department of Entomology
Penn State Entomology Christmas Tree Page
Penn State Entomology Extension publications and factsheets
Penn State Agricultural Analytical Service Lab (soil, media, water test & more)
Penn State Woody Ornamental IPM (Allegheny County)
Penn State Pesticide Education
Penn State Department of Agricultural and Biological Engineering
PA IPM Program (Penn State and PDA)
