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Some resources that have comprehensive weed identification charts are the Scotts Lawn Company, the University of Maryland College of Agriculture and Natural Resources, and Penn State College of Agricultural Sciences. The... More »

To identify weeds, examine the stem, leaves and any fruits produced by the plant. Some weeds also have thorns or flowers that can be used to identify the plant. More »

A spider identification chart contains photos of the species, with information about their geographic location. Other topics include aggressiveness and their habitat. Pertinent information regarding first-aid is listed. More »

www.reference.com Pets & Animals Bugs Spiders
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To identify almost any bug found in North America, search the online charts, descriptions, photos and other resources at Insect Identification. The site's database allows users to search for a specific bug by entering in... More »

www.reference.com Pets & Animals Bugs

Some great online plant identification guides can be found at the Go Botany, Dave's Garden and U.S. Department of Agriculture's Plants Database sites. Each of these sites offers extensive information to help users identi... More »

To identify weeds, examine the stem, leaves and any fruits produced by the plant. Some weeds also have thorns or flowers that can be used to identify the plant. More »

While many types of coliform bacteria present in well water are harmless, dangerous coliform bacteria cause fever, diarrhea, abdominal cramps and other forms of gastrointestinal upset, according to Penn State College of ... More »

www.reference.com Health Conditions & Diseases