论文部分内容阅读
1996～ 1 998年连续在濮阳市的几条主干道用 4 0 %氧化乐果乳油定时行树干包扎法联合星天牛、锈色粒肩天牛、合欢小吉丁虫等园林蛀干害虫的研究。试验证明 ,8月是旬进行树干涂药 ( 40 0～ 50 0倍液 )和包扎( 1 0 -1 5d)是防治蛀干害虫的有效方法
1996-1998 continuous on several main roads in Puyang City with 40% omethoate regular trunk bandage combined with Asteraceae, Scleroderma graminis, Clostridium minor garden borers and other pests research . Experiments show that the application of trunk coating (40 0 ~ 50 0 times) and dressing (10 ~ 15 days) in late August are effective methods for controlling stem borers