Journal of Applied Entomology - Zeitschrift für angewandte Entomologie (2000) 124, 77-85

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P. Morewood, G. Gries, J. Lika, P. Kapitola, D. Häußler, K. Möller and H. Bogenschütz (2000)
Towards pheromone-based monitoring of nun moth, Lymantria monacha (L.) (Lep., Lymantriidae) populations
Journal of Applied Entomology - Zeitschrift für angewandte Entomologie 124 (2), 77-85
Abstract: The research objective was to develop pheromone-based monitoring of the nun moth, Lymantria monacha (L.), an important defoliator of spruce and pine forests in central Europe. In 38 spruce or pine forests in central Europe, captures of male L. monacha in nonsaturating Unitraps and saturating Delta sticky traps baited with 0.2, 2, 20, or 200 mg of the L. monacha (pheromone) volatile blend [(±)-disparlure, (±)-monachalure, and 2-methyl-Z7-octadecene at a 20 : 20 : 1 ratio] were compared with estimates of population densities obtained by counts of larval faecal pellets, pupal cases, and adult moths resting on tree trunks. Total captures of male L. monacha throughout the flight season in both types of trap were correlated with numbers of larval faecal pellets, irrespective of pheromone dose. Nonsaturating Unitraps baited with 2 mg of the L. monacha volatile blend seem to provide a cost-effective tool for monitoring densities of L. monacha populations. Long-term testing of this monitoring system has been initiated to substantiate the quantitative relationship between larval populations and trap captures of male L. monacha and to determine the threshold number of captured male moths that indicates an incipient outbreak.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Gerhard Gries

Research topic(s) for pests/diseases/weeds:
pheromones/attractants/traps

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Lymantria monacha Spruce (Picea) Germany
Lymantria monacha Pine (Pinus) Germany
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