Name Description
American Horticultural Society Home page of this national association includes heat zone map, Master Gardener program information, youth gardening program materials and more.
Citation Styles-Online! A Reference Guide to Using Internet Sources Examples of how to cite from APA, MLA, CSE and Chicago style manuals.
Invasive Species.gov National Agricultural Library's resource rich site, focusing on plant and animal alien species that threaten native plants and animals.
Mid-Atlantic Regional Fruit Loop Information on deciduous tree fruit production in mid-Atlantic region. Cooperating state universities include Virginia Tech, West Virginia University, the University of Maryland, Penn State, and Rutgers.
New Crop Purdue's Center for New Crops and Plant Products. Look here for information about unusual crops.
Organic Food Production Overview, with links, from USDA
PennState Fruit Research & Extension Center Includes Pennsylvania Tree Fruit Production Guide.
Weed Identification Guide from Virginia Tech Excellent photographs of common weeds.