Guide to testing insecticides on coniferous forest defoliators

Carroll B Jr. Williams; David A. Sharpnack; Liz Maxwell; Patrick J. Shea; Mark D. McGregor

doi:10.2737/PSW-GTR-85

Treesearch

Guide to testing insecticides on coniferous forest defoliators

Informally Refereed

Authors:

Carroll B Jr. Williams, David A. Sharpnack, Liz Maxwell, Patrick J. Shea, Mark D. McGregor

Year:

1985

Type:

General Technical Report

Station:

Pacific Southwest Research Station

DOI:

https://doi.org/10.2737/PSW-GTR-85

Source:

Gen. Tech. Rep. PSW-85. Berkeley, Calif.: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture. 38 p

Download (PDF 4.77 MB)

Download (PDF 4.77 MB): https://research.fs.usda.gov/download/treesearch/27283.pdf

Abstract

This report provides a guide to techniques for designing field tests of candidate insecticides, and for carrying out pilot tests and control projects. It describes experimental designs for testing hypotheses, and for sampling trees to estimate insect population densities and percent reduction after treatments. Directions for applying insecticides by aircraft and for evaluating the effectiveness of such applications on target and nontarget insects are explained. The guide can help practitioners improve decisionmaking, efficiency, and safety in the use of insecticides to control forest pests. Although it is based primarily on budworm populations, the information reported is applicable to other coniferous forest defoliators.

Keywords

insecticide tests, forest defoliators, western spruce budworm, Douglas-fir tussock moth, experimental designs, sampling

Citation

Williams, Carroll B., Jr.; Sharpnack, David A.; Maxwell, Liz; Shea, Patrick J.; McGregor, Mark D. 1985. Guide to testing insecticides on coniferous forest defoliators. Gen. Tech. Rep. PSW-GTR-85. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 38 p.