N. M. French, Eden Bioscience Corporation, 15200 Burlingame Road, Little Rock, AR 72223-9618, T.L. Kirkpatrick, University of Arkansas, Southwest Research and Extension Center, 362 Highway 174 North, Hope, AR 71801, P. D. Colyer, LSU AgCenter, Red River Research Station, P.O. Box 8550, Bossier City, LA 71113-8550, J. L. Starr, Texas A&M University, Dept Plant Pathology & Microbiology, TAMU 2132, College Station, TX 77843-2132, K.S. Lawrence, Auburn University, 209 Life Science, Dept. Ent. and Plant Pathology, Auburn, AL 36849, J. R. Rich, University of Florida, NFREC, 155 Research Road, Quincy, FL 32351, G. W. Lawrence, Mississippi State Universtiy, 301 Clay Lyle, Dept. Ent. and Plant Pathology, Mississippi State, MS 39762, and J. D. Mueller, Clemson University, Edisto Research and Education Center, 64 Research Road, Blackville, SC 29817.
A regional study was initiated to examine the effects of two harpin proteins on cotton infected with nematodes. Replicated tests were established in Alabama, Florida, Louisiana, Mississippi, South Carolina, and Texas. Each test was conducted by an independent University or Extension scientist. The harpin proteins were applied to the cottonseed (N-HibitTM CST, harpinEA) and /or the foliage (ProActTM, harpinab) at the eight-leaf stage of DP 444 BG/RR or DP 555 BG/RR cotton.
All plants were grown in microplots for the entire production season. Microplots were inoculated with nematodes as follows: Reniform nematode, Rotylenchulus reniformis, Alabama, Florida, and Mississippi; Columbia lance nematodes, Hoplolaimus Columbus, South Carolina; Root-knot nematode, Meloidogyne incognita, Louisiana and Texas. Four weeks after planting, soil samples were collected and analyzed for nematodes. Sampling was repeated approximately every four weeks through harvest. After harvest, roots were dug and rated for galling and necrosis. Plant growth measurements and yield were recorded.
See more of Cotton Disease Council - Early Morning Session
See more of Cotton Disease Council
See more of The Beltwide Cotton Conferences, January 3-6 2006
