不同药剂注干施药对悬铃木方翅网蝽的防治效果

Trunk injection of pesticides to combat Corythucha ciliata

研究了吡虫啉、甲维盐、吡虫啉+阿维菌素和敌畏氧乐等4种注干液剂注干施药后对悬铃木方翅网蝽Cory-thucha ciliata的林间防治效果。结果表明:各药剂均表现出较好的控制作用,防治效果与药剂种类、施药剂量及药后时间长短有关。其中40.0g·L-1吡虫啉+1.5g·L-1阿维菌素和300.0g·L-1敌畏氧乐防治效果较好,根据悬铃木Platanus胸径大小,在0.10L·m-1胸径处理剂量下,药后5d,防治效果分别达95.33%和97.31%;药后20d,分别达96.00%和94.70%。这2种药剂可用于悬铃木方翅网蝽的防治。

To scientific control forest alien invasive species, the control of Corythucha ciliata in the forest with five different pesticides： 1 ） imidacloprid, 2） emamectin benzoate, 3） imidacloprid ＋ abamectin, 4） dichlorvos-omethoate were studied using trunk injection. Results showed that both 1） 40.0 g ·L-1 imidacloprid ＋ 1.5 g＇L-1 abamectin, which 5 d after a trunk injection with 0.10 L·m-1 controlled 95.33% and at 20 d 96.00%, and 2） 300.0 g·L-1（dichlorvos-omethoate）, which at 5 d controlled at 97.31% and at 20 d 94.70%, had better control than the other supplied insecticides. This indicated that 40.0 g·L-1 imidacloprid ＋ 1.5 g·L-1 abamectin and 300.0 g·L-1 （dichlorvos-omethoate） could be used to control C. ciliata. [Ch, 1 tab. 4 ref. ]