壳聚糖基黏附性缓释杀虫剂的制备及应用  

Preparation and Application of Chitosan-based Adhesive Sustained-Release Insecticide

作　　者：张少飞[1] 杨建东[1] 杨文 燕翔[1] 王都留[1] 柳明珠[2] ZHANG Shao-fei;YANG Jian-dong;YANG Wen;YAN Xiang;WANG Du-liu;LIU Ming-zhu(Agricultural and Forestry Technical College,Longnan Teachers College,Longnan 742500,Gansu,China;State Key Laboratory of Applied Organic Chemistry,College of Chemistry and Chemical Engineering,Lanzhou University,Lanzhou 730000,China)

机构地区：[1]陇南师范高等专科学校农林技术学院,甘肃陇南742500 [2]兰州大学功能有机分子化学国家重点实验室化学化工学院,兰州730000

出　　处：《农药》2021年第11期790-793,共4页Agrochemicals

基　　金：甘肃省科技计划资助(20JR5RK623);甘肃省自然科学基金(17JR5RK008);甘肃省高等学校创新能力提升项目(2019A-188);陇南师范高等专科学校博士科研启动基金项目。

摘　　要：[目的]制备黏附性的缓释杀虫剂可以提高杀虫剂对植物的黏附性,减少杀虫剂的流失,提高杀虫剂的利用率。[方法]利用壳聚糖(CS)、柠檬酸(CA)和3,4-二羟基苯乙酸(CT)制备黏附性缓释载体(CT-CS-CA),通过傅里叶变换红外光谱仪和透射电子显微镜对其结构进行表征,然后将其负载阿维菌素(Av)后进行黏附性能和杀虫效果研究。[结果]使用Av、壳聚糖负载阿维菌素(CS/Av)和黏附性缓释载体负载阿维菌素(CT-CS-CA/Av)喷洒苹果黄蚜14 d后,Av和CS/Av的防治效果为72%和74.8%,而CT-CS-CA/Av的防治效果为79.3%。[结论]这种黏附性缓释杀虫剂提高了杀虫剂的杀虫效果。[Aims]This study aims to prepare a sustained-release insecticide to improve the adhesion to plants,reduce the loss,and enhance the utilization rate of insecticides.[Methods]The adhesive sustained release carrier(CT-CS-CA)was prepared from chitosan(CS),citric acid(CA)and 3,4-dihydroxy phenylacetic acid(CT),the structure was characterized by Fourier transform infrared spectroscopy and scanning electron microscopy,and then the adhesion and insecticidal effect of CT-CS-CA loaded with abamectin were studied.[Results]The control effects of Av and chitosan loaded with avermectin(CS/Av)were 72 and 74.8%,while the control effect of adhesive sustained release carrier loaded with avermectin(CT-CS-CA/Av)was 79.3%.[Conclusions]CT-CS-CA/Av improves the insecticidal effect of insecticide.

关 键 词：壳聚糖 黏附性 阿维菌素 杀虫效果 

分 类 号：TQ450.6[化学工程—农药化工]