Black Walnut Trees Produce A Natural Insecticide

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1 total messages Started by knowledgefield Sun, 17 Jun 2007 11:38

#184

Author: knowledgefield
Date: Sun, 17 Jun 2007 11:38

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The black walnut tree manufactures a substance that is a natural insecticide according to experts at the Texas State University in Austin. 
 American black walnut tress contain a tannic acid chemists call juglone. The reddish yellow substance leaches from leaves, and some believe exudes from roots, or transfers from branches and foliage to the roots. Tree physiologists agree that roots of other plants that come in contact with those black walnut...

Read full article at http://www.knowledgefield.com/articles/black-walnut-trees-produce-a-natural-insecticide.shtml

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