Site-Specific Management For Root Knot Nematode in Cotton

摘要

A cross the U.S. Cotton Belt, the southern root knot ne-matode (RKN), microscopic pathogens, cause considerable yield loss. A University of Georgia survey carried out between 2002 and 2003 by Extension specialists Bob Kemerait and Cliff Brewer found RKN in all 67 cotton-producing counties in Georgia. Sixty-eight percent of the fields they surveyed were infested. Root knot nematodes damage the roots of cotton plants by forming knots. These knots interfere with the plant's ability to take up water andnutrients, resulting in stunted growth and ultimately reduced yield.