July 21, 2013

 

From Science Daily: June 26, 2013 

Contrary to popular belief, crabgrass does not thrive in lawns, gardens and farm fields by simply crowding out other plants. A new study in ACS’ Journal of Agricultural and Food Chemistry has found that the much-despised weed actually produces its own herbicides that kill nearby plants. 


The study shows that crabgrass exudes three specific chemicals from their roots which interfere with soil microbes and have negative effects on plant growth. Information like this helps us appreciate how important soil health is for the properties we manage. Adding organic matter and microbial inoculants may be another tool in combating crabgrass.

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