Theses and Dissertations

Issuing Body

Mississippi State University

Advisor

Catchot, Angus L., Jr.

Committee Member

Gore, Jeffrey

Committee Member

Cook, Donald R.

Committee Member

Larson, Erick J.

Committee Member

Musser, Fred R.

Date of Degree

5-6-2017

Document Type

Graduate Thesis - Open Access

Major

Agricultural Life Sciences

Degree Name

Master of Science

College

College of Agriculture and Life Sciences

Department

Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology

Abstract

Grain sorghum is a drought tolerant crop used in the Mid-south region in rotation with corn, cotton, soybeans, and corn. In 2015 and 2016, research was conducted to determine the influence of insecticide treatment, planting date, planting population, hybrid, and environmental temperatures on sugarcane aphid, Melanaphis sacchari (Zehntner), populations and yield in grain sorghum, Sorghum bicolor (L.) Moench. In general, cooler temperatures had a negative effect on sugarcane aphid control with sulfoxaflor and flupyradifurone. Additionally, there was a negative relationship between grain sorghum plant population and sugarcane aphid densities per plant. These data suggest management of sugarcane aphid with insecticide seed treatments and foliar sprays is critical for maximizing grain sorghum yields. Additionally, growers should wait for warmer temperatures to ensure optimum control.

URI

https://hdl.handle.net/11668/17526

Comments

sugarcane aphid||grain sorghum||melanaphis sacchari||sorghum bicolora

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