应用噻虫啉防治板栗栗瘿蜂的初步研究

喷施不同剂量2％噻虫啉微胶囊粉剂在板栗园进行栗瘿蜂防治试验,结果表明：防治效果与噻虫啉的使用剂量成正比;当噻虫啉每公顷用量为1600g、3200g和4800g时,防治效果最高达到94．71％,平均防治效果达到84．76％,平均防治药剂成本320元／hm2。应用噻虫啉进行栗瘿蜂防治,药剂成本较低,防治效果较好,可有效减小环境压力,有益于维护生态安全。

Preliminary research on Thiacloprid to control Dryocosmus kuriphilus Yasumatsu of Castanea mollissima

Different doses of Thiacloprid whose concentration was 20% were used to control Dryocosmus kuriphilus Ya- sumatsu of Castanea mollissima. The results showed that the control efficiency tends to be proportional to the dose of Thiaclo- prid, when the dose of Thiacloprid reached 1600g, 3200g and 4800g per hectare, the best pesticide effect was up to 94.71%, the average control effect was 84.76 % and the average chemical cost of each hectare was 320 RMB. There was a lower chemi cal cost with promising results when use Thiacloprid to control Dryoeosmus kuriphilus Yasumatsu, and it is possible to reduce environment stress and maintain ecological security.