石榴金龟子幼虫的田间药剂防治试验

Chemical Control Trials of Anomala Corpulenta Larvae in Pomegranate

采用6种化学药剂,通过药剂灌根和撒施颗粒剂的方法对石榴金龟子幼虫(蛴螬)进行防治试验,结果表明:采用药剂灌根方法,4种药剂均有较好的防治效果,相同浓度的不同药剂之间的防治效果存在一定的差异,药剂稀释倍数增大,防效降低,浓度增加,防效提高;其中40%的毒死蜱乳油、20%的吡虫啉可溶液剂缓效期较长。采用撒施颗粒剂方法,10%的辛硫.甲拌磷颗粒剂的缓效性优于3%的毒死蜱颗粒剂;药剂灌根和撒施颗粒剂这两种防治方法各有优劣。

By the methods of Pharmaceutical Irrigating and Granule Broadcasting, six kinds of chemicals were used to control the Anomala eorpulenta larvae（grubs）in pomegranates in the trial. Control experiment results show that： by using the Pharmaceutical Irrigating method, four chemicals have better effects on controlling the scarabs larvae in pomegranates fields; meanwhile, as to different differences in the results of the control efficacy. With the chemicals, at the same concentration, there was a certain increasing of pharmaceutical dilution, the control efficacy decreased, on the contrary, the efficiency improved; 40% of the Chlorpyrifos EC, 20% imidacloprid solution may be valid for a longer delay. While, when using the method Granule broadcasting, 10% of the Phorate with Phoxim granules is better than 3% of the chlorpyrifos granules. Both the method Irrigating and the method pharmaceutical granule broadcasting have their own advantages and disadvantages.