Theses and Dissertations

Issuing Body

Mississippi State University


Catchot, Angus L., Jr.

Committee Member

Musser, Fred R.

Committee Member

Allen, Thomas Ward, Jr.

Committee Member

Tomaso-Peterson, Maria

Committee Member

Gore, Jeffrey

Date of Degree


Document Type

Graduate Thesis - Open Access


Agricultural Life Sciences

Degree Name

Master of Science


College of Agriculture and Life Sciences


Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology


Stink bugs (Hemiptera: Pentatomidae) are key pests of soybean, Glycine max (L.), in Mississippi. Historically, yield loss derived from direct feeding by stink bugs has been considered the greatest threat to producers. However, quality reductions resulting from seed infections caused by microorganisms including Phomopsis longicolla are also a concern. Experiments were conducted in 2010 and 2011 to determine if stink bugs are associated with the incidence of P. longicolla in Mississippi soybean production. Data from experiments suggest that stink bugs are capable of transporting P. longicolla between two points. Data further suggest stink bugs and P. longicolla have the potential to cause a yield loss of 20% when combined in soybean. Surveys of commercial fields in Mississippi determined that stink bug damaged seed was more likely to be infested with P. longicolla and other fungi compared to undamaged seed.