Residual efficacy of at-planting soil applied insecticides on seedling thrips populations in northeast Louisiana
Document Type
Article
Publication Date
12-1-1997
Abstract
Field trials were conducted to evaluate the efficacy of selected at-planting insecticides against seedling thrips on cotton and their subsequent effect on seedcotton yield. Trials were conducted on Commerce silt loam, Gigger silt loam and Sharkey clay soils in northeast Louisiana. Combined across soil types, the use of Temik 15G (0.5 lb AI/acre), Orthene 90S (0.9 lb AI/acre) and Orthene 80SP seed protectant (6.4 oz AI/cwt) resulted in significantly greater control of adult thrips than Gaucho 480S (4.0 oz AI/cwt) or Admire 2F (0.2 lb AI/acre). Also, the Temik 15G treatment resulted in significantly (P>F<0.05) lower population densities of adult thrips than all other treatments. In trials conducted on a Commerce silt loam soil and on a Gigger silt loam soil at the Northeast Research Station, all insecticide treatments reduced immature thrips densities below the level in the untreated control. In the trial conducted on a Sharkey Clay soil, Orthene 90S, Orthene 80SP, Temik 15G and Admire 2F significantly reduced immature thrips populations compared to Gaucho 480S and the untreated control. Also, Temik 15G provided significantly greater control of immature thrips than Orthene 80SP. Combined across soil types, all insecticide treatments significantly increased seedcotton yields compared to the untreated control.
Publication Source (Journal or Book title)
Proc. of Beltwide Cotton Conf. Jan 1997, New Orleans, LA, USA
First Page
1160
Last Page
1162
Recommended Citation
Cook, D., Burris, E., Leonard, B., & Graves, J. (1997). Residual efficacy of at-planting soil applied insecticides on seedling thrips populations in northeast Louisiana. Proc. of Beltwide Cotton Conf. Jan 1997, New Orleans, LA, USA, 1160-1162. Retrieved from https://repository.lsu.edu/entomology_pubs/1037