Oviposition biology of Pissodes strobi (Coleoptera : Curculionidae) on white pine (Pinaceae) under laboratory conditions

Citation
R. Trudel et al., Oviposition biology of Pissodes strobi (Coleoptera : Curculionidae) on white pine (Pinaceae) under laboratory conditions, CAN ENTOMOL, 133(3), 2001, pp. 333-341
Citations number
33
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Entomology/Pest Control
Journal title
CANADIAN ENTOMOLOGIST
ISSN journal
0008-347X → ACNP
Volume
133
Issue
3
Year of publication
2001
Pages
333 - 341
Database
ISI
SICI code
0008-347X(200105/06)133:3<333:OBOPS(>2.0.ZU;2-Z
Abstract
Studies were conducted to document the oviposition biology of female white pine weevil, Pissodes strobi Peck. Data were recorded on female fecundity a nd daily feeding and oviposition activities. II? addition, we compared fecu ndity of 1- and 2-year-old females. Female white pine weevils laid a mean r t SE total number of 132.3 +/- 7.5 eggs (range 40-344 eggs) during an avera ge oviposition period of 5.8 +/-0.4 weeks. It is during the first 5 weeks t hat white pine weevils lay the most eggs, with an egg-laying peak in the se cond week of the oviposition period. For a few females, egg production did not cease until the 22nd week. There was no difference between the number o f eggs laid in the photophase and in the scotophase, but higher numbers of feeding punctures were observed during the night than during the day. The o viposition and feeding results for 2-year-old female white pine weevils wer e similar to those for I-year-old females. This information contributes to the management of white pine weevils by providing a better understanding of some of the mechanisms of its population dynamics.