Drug – bio-affecting and body treating compositions – Identification or warning feature – Taste or smell or chemical irritation to the eye – nose – or...
Patent
1978-07-31
1979-10-09
Rose, Shep K.
Drug, bio-affecting and body treating compositions
Identification or warning feature
Taste or smell or chemical irritation to the eye, nose, or...
424 22, 424 23, 424 84, A01N 500, A01N 900
Patent
active
041706315
ABSTRACT:
A method is described for significantly reducing Douglas-fir beetle (Dendroctonus pseudotsugae Hopk.) attacks on felled trees, through the use of the Douglas-fir beetle anti-aggregative pheromone, 3-methyl-2-cyclohexen-1-one (MCH), a highly volatile and water soluble material. Controlled release formulations of MCH can prevent the buildup of outbreak population of beetles in susceptible trees. Five controlled-release granular formulations were developed that eluted 3-methyl-2-cyclohexen-1-one (MCH) in the laboratory at a rate .gtoreq.0.5 .mu.g/hour for 60 days. The inert components of these formulations consisted either of a wax-coated molecular sieve, polyethylene emulsion-coated ground corncob or dimer acid polyamide beads. These formulations and a liquid standard were applied 9 May (1975) just prior to Douglas-fir beetle (Dendroctonus pseudotsugae Hopk.) flight to plots containing single, freshly felled Douglas-fir (Pseudotsuga menziesii var. glauca) trees. Three months later, infestation by Douglas-fir beetle and other insects was evaluated. All treatments except coated corncobs and certain applications of the molecular sieve significantly reduced Douglas-fir beetle attacks. Douglas-fir beetle brood in three treatments was significantly less than in controls. Abundance of entomophagous insects was proportional to density of host beetle attacks. Douglas-fir beetle attack density was negatively correlated with degree of infestation by the scolytid Pseudohylesinus nebulosus (Lec.).
REFERENCES:
rudinsky J. A., Sartwell, C. Jr., Graves, T. M., Morgan, M. E., Z. Angew, Ent. 75:254-263 (1974) Granular Formulation of Methylcyclohexenone: an Antiaggregative Pheromone of Douglas Fir and Spruce Bark Beetles.
Furniss, M. M., Young, J. W., McGregor, M. D., Livingston, R. L., Hamel, D. R., Canad. Entomol., 109: 1063-1069, Aug. 1977, Effectiveness of Controlled-Release Formulations of MCH for Preventing Douglas-Fir Beetle Infestation in Felled Trees.
Young, J. W., Graves, T. M., Curtis, R., Furniss, M. M., Controlled Release Formulations of Insect Growth Regulators and Pheromones-pp. 184-199, ACS Symposium Series, No. 53, A.C.S. 1977.
Furniss Malcolm M.
Young James W.
McConnell David G.
Rose Shep K.
Silverstein M. Howard
The United States of America as represented by the Secretary of
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