Why lacewings may fail to suppress aphids … Predators that eat other predators disrupt cotton aphid control
Jay A. Rosenheim, UC Davis
Lawrence R. Wilhoit, UC Davis
California Agriculture 47(5):7-9.
Biological control of the cotton aphid involves complex interactions among predators now under study.
J. A. Rosenheim is Assistant Professor, Department of Entomology, UC Davis. L. R. Wilhoit was Postgraduate Researcher (currently an Environmental Research Scientist for the Department of Pesticide Regulation, California EPA), Department of Entomology, UC Davis;
The authors thank Christine Armer and Paul Wynholds for technical assistance; Thomas Leigh for the use offield cages; Kent Daane, Les Ehler and Thomas Leigh for helpful discussions; and Sinthya Penn and William Lalor for comments on this manuscript. They thank the staff of the Kearney Agricultural Center and the UC Cotton Research Station, Shafler, for growing the experimental cotton plantings, and the Rincon-Vitoua Insectary for providing lacewing eggs for testing.
This study was funded by cotton-grower funds made available through Cotton Incorporated, in cooperation with the California State Support Committee, Rick Wegis, chairman, and the University of California Statewide IPM Project.