Mississippi State University
Musser, Fred R.
Catchot, Angus L., Jr.
Walker, Timothy W.
Date of Degree
Graduate Thesis - Open Access
Master of Science (M.S.)
College of Agriculture and Life Sciences
Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology
Two field trials were conducted to determine the impact of water management on the efficacy of insecticide seed treatments against rice water weevil, Lissorhoptrus oryzophilus Kuschel, in rice at the Delta Research and Extension Center during 2011 and 2012. The performance of thiamethoxam, chlorantraniliprole, and clothianidin was evaluated when the permanent flood was established at different timings (6 and 8 weeks after planting) and the effect of flush number (0, 1, or 2) on seed treatment performance was evaluated. Seed treatment efficacy was not impacted by delayed flooding, but 2 flushes reduced efficacy of some seed treatments. Experiments were also conducted to determine the impact of reduced seeding rates found in hybrid rice production on the efficacy of insecticide seed treatments targeting rice water weevil. Efficacy was similar when comparing currently labeled rates of thiamethoxam, chlorantraniliprole, and clothianidin with higher rates of these products.
Adams, Charles Andrew, "Impact of Water Management and Agronomic Practices on the Performance of Insecticide Seed Treatments against Rice Water Weevil, Lissorhoptrus Oryzophilus Kuschel, in Mississippi Rice" (2013). Theses and Dissertations. 2613.