秋田県のブドウ園におけるフルベンジアミド水和剤のクビアカスカシバに対する防除効果

抄録

The control effect of flubendiamide on Glossosphecia romanovi was investigated in vineyards in Akita Prefecture, Northern Japan in 2011 and 2012. In 2011, the injury caused by larval entry into trunks and branches was not fully observed in trees applied with flubendiamide in late June or mid-July, or in late June or early July. In late June and mid-July of 2012, flubendiamide was applied at a rate of 4,000 L/ha using a speed sprayer in half of one vineyard（1,000m²）（plot A）. No flubendiamide was applied in the other half （plot B）. In addition, the barks of three vine trees were stripped before spraying in each plot. The number of injuries in the trees whose bark was stripped in plot A was significantly smaller than that in plot B. A high residual effect of flubendiamide on G. romanovi up to 40 days after finishing the chemical spraying was confirmed.