Would like to know if a spider found in our garden could be poisonous

United States
August 24, 2006 5:56am CST
Black and yellow striped body about 1 inch in length - 3/8 inch across We are located in Virginia near Charlottesville Near the center of the web is a vertical "rik rak" pattern of multiple strands of silk Any help would be appreciated kenjbush@earthlink.net
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