WINTER DORMANCY IN ERNOBIUS-ABIETIS F (COL, ANOBIIDAE) STUDIED IN RELATION TO COLD-HARDINESS

Authors
LUIK A
Citation
A. Luik, WINTER DORMANCY IN ERNOBIUS-ABIETIS F (COL, ANOBIIDAE) STUDIED IN RELATION TO COLD-HARDINESS, Journal of applied entomology, 119(8), 1995, pp. 523-525
Citations number
23
Categorie Soggetti
Entomology
Journal title
Journal of applied entomology → ACNP
ISSN journal
09312048
Volume
119
Issue
8
Year of publication
1995
Pages
523 - 525
Database
ISI
SICI code
0931-2048(1995)119:8<523:WDIEF(>2.0.ZU;2-I
Abstract
Hibernating larvae of E. abietis lowered their supercooling points fro m -11.8 degrees C in September to -25.6 degrees C in January and adult s from -12.7 to -25.7 degrees C due to the state of winter dormancy wh ich is mainly controlled by temperature. Only under low enviromental t emperatures in autumn and winter did the overwintering specimens devel op their cold hardiness. During favourable temperatures, hibernating l arvae activate easily and continue their development despite the day l ength. Winter dormancy in adults seems to be induced by photoperiodica l conditions.