Evaluation of R-55 and mestranol to protect Douglas-fir seed from deer mice

G.L. Crouch; M.A. Radwan

Treesearch

Evaluation of R-55 and mestranol to protect Douglas-fir seed from deer mice

Informally Refereed

Authors:

G.L. Crouch, M.A. Radwan

Year:

1971

Type:

Research Note

Station:

Pacific Northwest Research Station

Source:

Res. Note PNW-RN-170. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 6 p

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Download (PDF 500 KB): https://research.fs.usda.gov/download/treesearch/40603.pdf

Abstract

Bioassays using deer mice showed that R-55 a thiocarbamate derivative applied as 2-and 5-percent coatings was ineffective in reducing consumption of Douglas-fir seed. At 2 percent3 mestranol3 an antifertility chemical3 reduced seed consumption to levels comparable with endrin applied at 0.5 percent without impairing germination.

Keywords

Seed treatment mice, biological as say, pesticides

Citation

Crouch, G.L.; Radwan, M.A. 1971. Evaluation of R-55 and mestranol to protect Douglas-fir seed from deer mice. Res. Note PNW-RN-170. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 6 p