Strategies for managing lepidopterous pests on lettuce
California Agriculture 38(1):6-8.
It isn't necessary to keep the crop insect-free during the entire growing season
Marshall W. Johnson, former Post-graduate Research Assistant, University of California, Riverside, is Assistant Professor of Entomology, University of Hawaii at Manoa; Ken Kido is Staff Research Associate, Cooperative Extension, University of California, Riverside; Nick C. Toscano is Program Director of Pest Management and Entomologist, Cooperative Extension, UC, Riverside; Robert A. Van Steenwyk is Entomologist, Cooperative Extension, UC, Berkeley; Steve C. Welter is Assistant Professor of Entomology, San Diego State University, San Diego; Norman F. McCalley is Farm Advisor, UC Cooperative Extension, Monterey County.
The authors acknowledge the assistance of William W. Barnett, Area IPM Specialist, Cooperative Extension, Fresno County.