Population assessment of cotton bollworm in relation to pest control practices
D. González, University of California
R. van den Bosch, Division of Biological Control
G. M. Orphanides, University of California
L. H. Dawson, University of California
C. White, Supervised Control Service
California Agriculture 21(5):12-14. DOI: 10.3733/ca.v021n05p12.
D. González is Assistant Entomologist and Lecturer, Department of Biological Control, University of California, Riverside; R. van den Bosch is Entomologist and Lecturer, Division of Biological Control, Berkeley; G. M. Orphanages is Research Assistant, University of California, Riverside; L. H. Dawson is Laboratory Technician IV, Department of Biological Control, University of California, Riverside; C. White is Entomologist, Supervised Control Service, Shafter;
Long-range studies on cotton bollworm were initiated to develop control recommendations relating damage potential to pest population density, environmental conditions, and the general economics of cotton production. Data from these preliminary studies indicate that the present criteria used in determining the economic threshold for cotton bollworm need to be re-evaluated. The data suggest that higher infestations of cotton bollworm may be tolerated than previously believed.
Assistance with this study was received from Dr. T. Leigh, and Seiiores H. Black, C. Jackson, D. Muir, and J. Nichelsen.