| abstract |
The present invention belongs to the field of plant protection and relates to a method of weed control using tenuazonic acid, isotenuazonic acid as well as their salts from the metabolites of Alternaria alternata,which includes spraying broad-leaved weeds, grasses and sedges in the farmland at the concentration of 5-800µg/g. The method shows broad-spectrum, rapid and high efficient weeds control activities and makes rapidly weeds destroy until they shrink and dry to death. Appropriate auxiliaries added increase the weed control activities. |