Theses and Dissertations

Issuing Body

Mississippi State University

Advisor

Catchot, Angus L., Jr.

Committee Member

Musser, Fred R.

Committee Member

Gore, Jeffrey

Committee Member

Cook, Donald R.

Committee Member

Irby, J. Trenton

Date of Degree

8-14-2015

Document Type

Graduate Thesis - Open Access

Major

Entomology

Degree Name

Master of Science (M.S.)

College

College of Agriculture and Life Sciences

Department

Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology

Abstract

Field experiments were conducted to determine the impact of threecornered alfalfa hopper, Spissistilus festinus, (Say), in reproductive growth stage soybeans. High densities of threecornered alfalfa hoppers were examined in field cages to understand feeding on soybean. No significant yield losses were observed from threecornered alfalfa hopper feeding during reproductive growth stages. Sweep net efficiency studies were conducted in order to convert the densities used in field cages to a sweep net threshold. Field experiments were also conducted to determine the impact of threecornered alfalfa hopper injury to seedling cotton. Threecornered alfalfa hopper injury to seedling cotton plants impacts individual plant yield, but further research is needed to understand the ability for undamaged cotton plants to compensate for neighboring damaged plants.

URI

https://hdl.handle.net/11668/20093

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