合成性フェロモンを利用したハスモンヨトウの大量誘殺法による防除 : I.サトイモ畑における幼虫コロニー密度の減少効果

概要

論文の詳細を見る
A mass trapping experiment was conducted in a field of 27 ha, in Kawagoe, Saitama Pref., in 1978. The following vegetables were cultivated in this field : 7 ha of taro, 5 ha of sweet potato, 10 ha of carrot and 5 ha of radish. Northern and southern margins of the field were surrounded by windbreaks while the other two sides were open. 52dry type traps (made by Takeda Chemical Ind.Ltd.) baited with "litlure" (a synthesized sex pheromene for S.litura, which is a mixture of 4.55mg (Z, E)-9,11-tetradecadienyl acetate and 0.45mg of (Z, E)-9,12,tetradecadienyl acetate) were arranged in the experimental field in a grid-like pattern. Throughout the seasons (June to October), the number of males of S. litura captured in traps set in the inner part of the field was always lower than that in outer traps. The density of larval colonies on leaves of taro plants in the inner part of the experimental field also remained low until Sept.18,but thereafter increased and became the density indentical with in the outer part of the field. This reduction of larval density in the experimental field was also apparent when compared with the density in the control field (without trap).
日本応用動物昆虫学会の論文
1980-11-25