Bt制剂防治玉米螟的田间效果  

The field control effect of Bacillus thuringiensis on corn borer

作　　者：江俊起[1] 王向阳[2] 董猛[1] 檀根甲[1] 

机构地区：[1]安徽农业大学植物保护学院,合肥230031 [2]安徽省萧县农作物病虫测报站,萧县235200

出　　处：《植物保护》2011年第4期173-175,共3页Plant Protection

基　　金：安徽省"十一五"科技攻关项目(08010302172)

摘　　要：研究了Bt、克百威、丁硫克百威、溴氰菊酯、杀虫双和辛硫磷6种药剂处理对玉米螟的田间防治效果。结果表明,6种药剂均能显著降低玉米的被害株率,克百威的防效最好,其次为丁硫克百威、辛硫磷和溴氰菊酯,对被害株的相对防效分别为71.70%、70.03%、68.47%和68.11%,Bt生物制剂的防效达66%以上;6种药剂对幼虫的相对防效均达到80%以上;Bt生物制剂的防效与其他化学制剂间差异不显著(p<0.01)。辛硫磷处理易发生药害,但5 d后叶片白斑逐渐消失。The effects of Bt, carbofuran, carbosulfan, deltamethrin, bisultap and phoxim on Ostrinia furnacalis in corn fields in Xiaoxian of Anhui Province were studied. The results showed that the six insecticides tested had significant effects on the rate of injured corn plants. Carbofuran had the greatest control effect, followed by carbosulfan, phoxim and deltamethrin in that order. The average values of effect were 71.70%, 70.03%, 68.47% and 68.11%, respectively. The control effect of Bt was over 66%. The control effects of the six insecticides tested all reached 80%. There were no significant differences among the six treated plots （p〈0.01）. The chemical injury could occur in phoxim plot, but white spots on corn leaves disappeared gradually after five days.

关 键 词：玉米螟 危害 BT制剂 

分 类 号：S482.39[农业科学—农药学]