Chemosterilants to control bark beetles...tepa shows promise in preliminary test

Robert L. Lyon; Patrick J. Shea

Treesearch

Chemosterilants to control bark beetles...tepa shows promise in preliminary test

Informally Refereed

Authors:

Robert L. Lyon, Patrick J. Shea

Year:

1967

Type:

Research Note

Station:

Pacific Southwest Research Station

Source:

Res. Note PSW-RN-139. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 6 p

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Download (PDF 2.63 MB): https://research.fs.usda.gov/download/treesearch/37994.pdf

Abstract

In a preliminary study, two chemosterilants-tepa and hempa-were tested for their effects on the fertility of adult bark beetles (Ips confusus [LeConte). Hempa was Ineffective. Tepa proved 97 percent effective in reducing egg hatch, when applied at 10 µg./10 mg. body weight to both parents. The possibility of using a chemosterilant and the male sex pheromone jointly to attract and sexually sterilize insect populations in the field shows promise.

Keywords

Ips confusus, chemosterilants, sterilization, tepa, hempa, bark beetles, control

Citation

Lyon, Robert L.; Shea, Patrick J. 1967. Chemosterilants to Control Bark Beetles...tepa shows promise in preliminary test. Res. Note PSW-RN-139. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 6 p