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פותח על ידי קלירמאש פתרונות בע"מ -
Studies on the Biology of a Bark Beetle Predator, Aulonium ruficorne (Coleoptera: Colydiidae) - Abstract
Year:
1990
Source of publication :
Environmental Entomology
Authors :
מנדל, צבי
;
.
פודולר, חגי
;
.
Volume :
1019
Co-Authors:
Hana Livne - Hebrew Univesity
 
Facilitators :
From page:
1010
To page:
1016
(
Total pages:
7
)
Abstract:

Densities of adult Aulonium ruficorne Olivier were significantly higher when the beetle prey, Orthotomicus erosus (Wollaston), were in the first two instars. Under controlled conditions, adult longevity was 33.5 d. Female A. ruficorne were more abundant during bark beetle colonization and, later, during the bark beetles' larval stage. However, males outnumbered females during bark beetle oviposition. Eggs were laid under bark scales, in crevices, and in bark beetle frass. The egg distribution was mainly a function of the bark scale distribution and was independent of distance from egg tunnels. There are four or five larval instars. The thermal constant of A. ruficorne is 571 degree-days (lower temperature threshold, 11.3°C). The predator can feed on all immature stages of the bark beetles O. erosus and Pityogenes calcaratus Eichhoff. However, larvae and adults were recorded gnawing bark, and wood particles were observed inside the alimentary canal. In simulated pine tree systems, adults consumed 0.6–1.9 bark beetle eggs or neonates. The combined effect of adults and larvae suggest that this predator might reduce the population of the bark beetles by up to 90% during spring and autumn and by 30–50% during summer.

Note:
Related Files :
Aulonium ruficorne
biological control
Insecta
Orthotomicus erosus
עוד תגיות
תוכן קשור
More details
DOI :
https://doi.org/10.1093/ee/19.4.1010
Article number:
0
Affiliations:
Database:
גוגל סקולר
Publication Type:
תקציר
;
.
Language:
אנגלית
Editors' remarks:
ID:
39337
Last updated date:
02/03/2022 17:27
Creation date:
18/02/2019 12:29
You may also be interested in
Scientific Publication
Studies on the Biology of a Bark Beetle Predator, Aulonium ruficorne (Coleoptera: Colydiidae) - Abstract
1019
Hana Livne - Hebrew Univesity
 
Studies on the Biology of a Bark Beetle Predator, Aulonium ruficorne (Coleoptera: Colydiidae)

Densities of adult Aulonium ruficorne Olivier were significantly higher when the beetle prey, Orthotomicus erosus (Wollaston), were in the first two instars. Under controlled conditions, adult longevity was 33.5 d. Female A. ruficorne were more abundant during bark beetle colonization and, later, during the bark beetles' larval stage. However, males outnumbered females during bark beetle oviposition. Eggs were laid under bark scales, in crevices, and in bark beetle frass. The egg distribution was mainly a function of the bark scale distribution and was independent of distance from egg tunnels. There are four or five larval instars. The thermal constant of A. ruficorne is 571 degree-days (lower temperature threshold, 11.3°C). The predator can feed on all immature stages of the bark beetles O. erosus and Pityogenes calcaratus Eichhoff. However, larvae and adults were recorded gnawing bark, and wood particles were observed inside the alimentary canal. In simulated pine tree systems, adults consumed 0.6–1.9 bark beetle eggs or neonates. The combined effect of adults and larvae suggest that this predator might reduce the population of the bark beetles by up to 90% during spring and autumn and by 30–50% during summer.

Scientific Publication
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