METHODS AND COMPOSITIONS TO DEFOLIATE CROP PLANTS AND MINIMIZE PLANT REGROWTH FOLLOWING DEFOLIATION

摘要

Concurrent or sequential application of an auxin transport inhibitor and a defoliating agent synergistically improve defoliation of crop plants and minimize crop plant regrowth. Pre¬ferably, the auxin transport inhibitor is a semicarbazone compound. The defoliating agent may be an ethylene response or ethylene-type response agent such as a phosphonic acid deriva¬tive. Most preferably, the semicarbazone compound is diflufenzo-pyr and the phosphonic acid derivative is ethephon (i.e., ethe-phon (2-chloroethyl) phosphonic acid).