0.3%辛硫磷颗粒剂(药肥混剂)防治甘蔗蔗螟田间药效试验

Field Efficacy Trials of 0.3% Phoxim Granules(Insecticide-Fertilizer Mixture)Against Sugarcane Borers

[目的]为0.3%辛硫磷颗粒剂申报甘蔗农药登记和推广应用提供科学依据。[方法]分别在4个省份开展了为期2年的0.3%辛硫磷颗粒剂防治甘蔗蔗螟的试验,探索适宜的有效剂量,观察和评估该药剂对甘蔗及有益天敌生物的安全性。[结果]推荐0.3%辛硫磷颗粒剂的有效使用剂量为1500~2250kg/hm2（有效成分用量为4500~6750 g/hm2）,该药剂对甘蔗安全、无药害,且有助长作用;对有益的天敌生物（如寄生蜂、蚜茧蜂、赤眼蜂、瓢虫等）没有不良影响,同时对蔗龟、蓟马、象甲等甘蔗害虫具有兼治作用。[结论]本试验研究为0.3%辛硫磷颗粒剂申报甘蔗农药登记和推广应用提供了扎实的试验基础和有力的科学依据。

[Aims] To provide a scientific basis for the registration and application of 0.3% phoxim granules in sugarcane. [Methods] The tests were undertaken in 2 years on sugarcane borer in 4 provinces to explore the effective dosage of 0.3% phoxim granules, and to observe and evaluate the its safety on sugarcane and beneficial natural enemies of pests. [Results] Effective dosage of 0.3% phoxim granules was 1500~2250 kg/hm2（a. i.4500~6750 g/hm2）. It＇s safe for sugarcane without injury growth-stimilating. No adverse effects was found on beneficial natural enemies such as parasitic wasps, aphidius insects, trichogramma species and ladybug etc. It can also somewhat control sugarcane beetles, thrips, weevils etc. [Conclusions] This experimental research provides a solid experimental material and strong scientific basis for the registration and application of 0.3%phoxim granules in sugarcane.