Environmental Entomology (1993) 22, 445-452

Peter Jönsson and Olle Anderbrant (1993)
Weather factors influencing catch of Neodiprion sertifer (Hymenoptera: Diprionidae) in pheromone traps
Environmental Entomology 22 (2), 445-452
Abstract: The variation in number of European pine sawflies, Neodiprion sertifer (Geoffroy), caught in pheromone traps during 11 d of the peak flight period was in part explained by the weather, measured by a weather station at the study site. Daily average air temperature was the most important variable and was positively related to the log catch; it explained 86% of the variation. A threshold for flight was determined to be ~ +11°C. Rain during most of the clay inhibited flight, but occasional showers did not. Wind velocity and humidity did not increase the explained part of the variation significantly in a multiple regression model after inclusion of air temperature. Trap sample and weather-recording intervals <1 d did not enhance the correlations. An all-season study showed low correlation between catch and temperature because of varying background population and a considerable distance to the meteorological stations where the temperature data were collected.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Olle Anderbrant

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Neodiprion sertifer		Sweden