Friday, January 12, 2007 - 11:00 AM

Nematode Management of Cotton in Morehouse Parish, Louisiana

Terry Erwin1, Richard Letlow1, Charles Overstreet2, and Maurice Wolcott2. (1) LSU Agricultural Center, P.O. Box 192, Bastrop, LA 71220, (2) Dept. of Plant Pathology and Crop Physiology, 302 Life Science Building, Baton Rouge, LA 70803

Morehouse Parish has been problematic area for plant-parasitic nematodes for many years. Root-knot and reniform nematode were particularly destructive during 2006 due to a slow start from cool weather and prolonged drought. Telone was applied in strips throughout the field in several locations to evaluate its effectiveness. Severe stunting was evident in the untreated checks in all the fields. Several areas within the untreated plots were prematurely killed because the interaction of root-knot nematode and Fusarium wilt was so severe. Telone strips may provide a good tool to pinpoint areas of a field where a response from a nematicide is likely to occur. Greatest injury occurred in the sandiest areas of these fields.