Effect of Reduced Rates of Ethephon on Late-Season Insect Oviposition and Feeding Sites in Cotton2
Studies to evaluate the effectiveness of low rates of ethephon in removing late-season squares and small bolls from cotton was conducted at Little Rock and Florence, SC in 1988. Ethephon at 0, 0.14, 0.28, 0.56, and 0.84 kg/ha was applied to cotton with terminal regrowth following cutout. Rates of 0.56 and 0.84 kg/ha caused significant abscission of fruiting forms within three days of application. Yield was not affected.
Contributor Notes
2In cooperation with the South Carolina Agricultural Experiment Station. This article reports the results of research only. Mention of a proprietary or commercial product does not constitute an endorsement or a recommendation for its use by the USDA or Clemson University.
3USDA-ARS, P.O. Box 2131, Florence, SC 29503.
4Department of Entomology, Clemson University, Pee Dee Research and Education Center, Florence, SC 29501.
5USDA-APHIS, P. O. Box 146, Little Rock, SC 29567.