Jennifer Lund, Arkansas State University, PO BOX 2340, State University, AR 72467, Donald C. Steinkraus, University Of Arkansas, Department of Entomology, 319 AGRI, Fayetteville, AR 72701, Tina Gray Teague, University of Arkansas Agricultual Experiment Station - Arkansas State University, PO Box 2340, State University, AR 72467, and Jarrod E. Leland, USDA-ARS-SIMRU, 141 Experiment Station Rd, Stoneville, MS 38776.
Tarnished plant bug (Lygus lineolaris) is a pest insect in cotton. We tested the effect that the entomopathogenic fungi Beauveria bassiana and the insect growth regulator Diamond® has on caged populations of tarnished plant bugs in cotton. We divided a cotton field into three blocks. Each block was further divided into six 10 meter plots. Twenty-five adults and 25 nymphs were caged in groups of five in each of the 10 meter plots using sleeve mesh net cages. Each of the 10 meter plots receive one of six spray treatments: (a) water control, (b) the commercially available Beauveria (Botanigard®), (c) USDA Beauveria strain, (d) Diamond®, (e) Botanigard ® plus Diamond ® and (f) USDA Beauveria plus Diamond®. Insects were held in cages for two days. Dead insects were placed in moist filter paper lined chambers and living insects were placed individually in 2 oz cups with a cube of water foam and a kernel of corn. Living insects were held for ten days and checked daily for death. Dead insects were checked for molting problems and outward signs of fungal infection.
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See more of The Beltwide Cotton Conferences, January 3-6 2006
