A Field Test of Mating-Suppression Using The Spruce Budworm Sex Pheromone
- Dimond, J.B.
Professor - College of Forest Resources - Department of Entomology
- Mott, D.G.
- Kemp, W.P.
Research Associate - College of Forestry, Wildlife and Range Sciences
- Krall, J.H.
Assistant Scientist - College of Forest Resources
Spruce budworm sex pheromone, formulated as HerconR flakes5 (1) was dispersed from aircraft over forest land in Maine in late June,1980. A major goal was to sample pheromone concentrations in air, through chemical means, to determine whether the Hercon flake formulation would provide the steady, sustained release of chemical believed required for interfering with the mating process of the moths. That the flakes did have these properties has been reported elsewhere (2). As long as pheromone was going to-be applied for purposes of analyses of air, we believed that the opportunity of studying some behavioral effects on spruce budworm populations should be exploited. This report describes these studies. The principal body of data involved the ability of male budworm moths to orient to point sources of pheromone (baited traps) in pheromone treated and untreated forest blocks, but attempts were also made to monitor fertility levels among females and to measure populations of eggs.
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