Canadian Forest Service Publications

Effect of weather on activity and movement of lodgepole needle miner moths. 1981. Shepherd, R.F. Pages 143-152 in A.A. Berryman and L. Safranyik, editors. Proceedings of the second IUFRO Conference on dispersal of forest insects evaluation, theory and management implications, August 27-31, 1979, Sandpoint, Idaho, USA. Washington State University, Pullman, WA.

Year: 1981

Issued by: Pacific Forestry Centre

Catalog ID: 1827

Language: English

Availability: Not available through the CFS (click for more information).

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Abstract

Numbers of adult Coleotechnites starki Freeman (Lepidoptera: Gelechiidae) caught each hour by rotating nets at the top of trees were correlated with environmental factors. Females were active from 19:30 to 21:30 when temperatures were above 11°C and males were active from 21:00 through the night as long as temperatures remained above the flight threshold of 9°C. Rain sufficient to wet the foliage or winds over 1.2 m/sec caused activity to cease. Number of hours available for moth activity correlated well with rates of population increase at different topographic positions and with population trends over time.

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