80%烯啶·吡蚜酮水分散粒剂的制备

Preparation of 80% Nitenpyram-Pymetrozine Water Dispersible Granule

将杀虫剂烯啶虫胺(20%)和吡蚜酮(60%)复配制成80%水分散粒剂。研究了分散剂、润湿剂、抗凝聚剂等助剂的种类和用量对80%烯啶·吡蚜酮水分散粒剂性能的影响。结果表明,该产品悬浮率、润湿性、热贮稳定性等指标均符合质量标准;田间试验显示,该制剂对稻飞虱的杀虫效果明显好于吡蚜酮和烯啶虫胺单剂。

80 % nitenpyram-pymetrozine water dispersible granule（WDG） is prepared with 20 % nitenpyram and 60 % pymetrozine. The influence of dosages and kinds of dispersants, wetting agents, anticoagulants and other additives on the properties of 80 % nitenpyram-pymetrozine WDG is studied. The results show that the suspension rate, wettability, thermal stability and other indexes of the products meet the quality specification. Field experiments show that the insecticidal efficiency of the products on rice planthopper is obviously higher than that of nitenpyram and pymetrozine being used individually.