WEATHER FACTORS INFLUENCING CATCH OF NEODIPRION-SERTIFER (HYMENOPTERA, DIPRIONIDAE) IN PHEROMONE TRAPS

Citation
P. Jonsson et O. Anderbrant, WEATHER FACTORS INFLUENCING CATCH OF NEODIPRION-SERTIFER (HYMENOPTERA, DIPRIONIDAE) IN PHEROMONE TRAPS, Environmental entomology, 22(2), 1993, pp. 445-452
Citations number
37
Categorie Soggetti
Agriculture,Entomology
Journal title
ISSN journal
0046225X
Volume
22
Issue
2
Year of publication
1993
Pages
445 - 452
Database
ISI
SICI code
0046-225X(1993)22:2<445:WFICON>2.0.ZU;2-J
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 sta tion at the study site. Daily average air temperature was the most imp ortant variable and was positively related to the log catch; it explai ned 86% of the variation. A threshold for flight was determined to be almost-equal-to +11-degrees-C. Rain during most of the day inhibited f light, but occasional showers did not. Wind velocity and humidity did not increase the explained part of the variation significantly in a mu ltiple regression model after inclusion of air temperature. Trap simpl e and weather-recording intervals <1 d did not enhance the correlation s. An all-season study showed low correlation between catch and temper ature because of varying background population and a considerable dist ance to the meteorological stations where the temperature data were co llected.