ジャガイモガの性フェロモントラップによる捕獲数の周年変化
1988 年 32 巻 1 号 p. 77-79
詳細
1988 年 32 巻 1 号 p. 77-79
Changes in the number of the potato tuber moth males, Phthorimaea operculella, captured in a sex pheromone trap during more than 2 years were analysed. Males were captured in the summer season and also in midwinter. Determination of the number of males caught in the sex pheromone trap was considered to enable to monitor the population density in the field. Factors controlling male catches were also discussed.
