Research on the Control of Rapeseed Leaf Miner with Agro-chemical
Xueping Wu · Anhui nongye kexue · 2006
Field trails in the control of rapeseed leaf miner were carried out with the agro-chemical-2 000 IU/μl BT Suspension at 200 times.The result showed that the highest control effect was 96.12 % at the eighth day after used and the lowest control effect was 12.29 % at the third day. From above,the correction control effect all exceeded 50 % after five days but its quick efficiency was poor .