MCH Pheromone for Preventing Douglas-Fir Beetle Infestation in Windthrown Trees

Authors

M. D. McGregor
M. M. Furniss
R. D. Oaks
K. E. Gibson
H. E. Meyer

Document Type

Article

Journal/Book Title/Conference

Journal of Forestry

Publication Date

1984

Issue

10

Volume

82

First Page

613

Last Page

616

Abstract

A granular controlled-release formulation (98 percent inert, 2 percent 3-methyl-2-cyclohexen-1-one) was applied May 11-13, 1982, at 4.48 kg/ha to 76.9 ha of uninfested windthrown Douglas-fir by helicopter with a modified aerial spreader of 1.13 m³ capacity. Granules measured on treated plots averaged 2.04-2.69 kg/ha, sufficient to reduce Douglas-fir beetle (Dendroctonus pseudotsugae) infestation 96.4 percent by late June. The same MCH treatment reduced spruce beetle (Dendroctonus rufipennis) attacks by 55 percent in fewer, intermingled windthrown Engelmann spruce.

Recommended Citation

McGregor, M.D., M.M. Furniss, R.D. Oaks, K.E. Gibson, and H.E. Meyer. 1984. MCH pheromone for preventing Douglas-fir beetle infestation in windthrown trees. J. For. (82):613-616.