このエントリーをはてなブックマークに追加
ID 370
Eprint ID
370
FullText URL
Title Alternative
コクヌストの捕食性
Author
Yoshida, Toshiharu
Abstract
The rates of predation by the adults of Tenebroides mauritanicus were determined for the three stored-product pests. The average number of completely or partially eaten insects per beetle per day was -2.5-2.7 for Rhyzopertha dominica, 0.5-0.7 for Sitophilus oryzae and 0.2-0.4 for Oryzaephilus surinamensis respectively., For the latter two species the number of insects consumed on the 1st day was greater than the latter days. For the rice weevil the greater numbers of dead and partially eaten weevils were left behind than the other two species. The relative preferences for the three species were examined. R. dominica was. most and O. surinamensis least attractive to the cadelle in the preference. The per cent insects eaten in the preference increased for R. dominica and S. oryzae and decreased for O. surinamensis as compard with preying on the single species. Using S. oryzae and O. surinamensis as prey, preying on dead body was tested. Both the rates of predation increased on the dead insects. The rate of predation on the dead S. oryzae did not differ from that on the living R. dominica. The relative preferences for the three species were attributed to the differences of vagility and palatability among the prey species. It was considered that the cadelle played an important role in natural control over the stored-product pests.
Published Date
1975
Publication Title
岡山大学農学部学術報告
Publication Title Alternative
Scientific Reports of the Faculty of Agriculture Okayama University
Volume
volume46
Issue
issue1
Publisher
岡山大学農学部
Publisher Alternative
Faculty of Agriculture, Okayama University
Start Page
10
End Page
16
ISSN
0474-0254
NCID
AN00033029
Content Type
Departmental Bulletin Paper
language
英語
File Version
publisher
Refereed
False
Eprints Journal Name
srfa