タバココナジラミに対して定位阻害効果や交尾阻害効果が期待される２種の気門封鎖剤の殺虫効果および圃場での防除効果

抄録

The insecticidal efficacy of two spiracle-blocking insecticides, safflower and cotton oils and decanyloctanoylgycerol, on eggs and fourth instar nymphs of the Bemisia tabaci was evaluated in the laboratory. In addition, their density suppression effects in the field were also examined. In the laboratory, safflower and cotton oils and decanyloctanoylglycerol showed higher efficacy against B. tabaci eggs and fourth instar nymphs than the control, with more than 70% mortality observed in both developmental stages. In the field, three consecutive applications of acetylated glyceride or either of the spiracle-blocking insecticides at 7-day intervals suppressed the number of fourth instar nymphs and adults.