N-3型无人直升机施药方式对稻飞虱和稻纵卷叶螟防治效果的影响  

Effects of N-3 UAV spraying methods on the efficiency of insecticides against planthoppers and Cnaphalocrocis medinalis

作　　者：薛新宇[1] 秦维彩[1] 孙竹[1] 张宋超[1] 周立新[1] 吴萍[1] 

机构地区：[1]农业部南京农业机械化研究所,南京210014

出　　处：《植物保护学报》2013年第3期273-278,共6页Journal of Plant Protection

基　　金：公益性行业(农业)科研专项(201203025)

摘　　要：为了阐明喷洒药械N-3型无人直升机(N-3 UAV)对稻飞虱和稻纵卷叶螟的防治效果及应用前景,进行了飞机不同作业高度和不同喷洒浓度的田间药效试验。结果表明,在水稻分蘖后期,飞机每公顷喷洒48%毒死蜱.锐劲特EC 432 g(有效成分,下同),施药后3、5、10 d对稻飞虱的防治效果为96.93%、92.21%、88.12%,对稻纵卷叶螟的保叶效果为63.29%、54.00%、58.33%,均优于传统担架式喷雾机喷洒防治效果。在水稻孕穗期,无人机在3 m和5 m的作业高度下,每公顷喷洒25%吡蚜酮SC 75 g,施药后10 d对稻飞虱的防治效果与每公顷喷洒60 g和52.5 g时防治效果无显著差异;每公顷施用40%二嗪.辛硫磷EC 480 g和384 g防治稻纵卷叶螟,施药后10d,3m作业高度下的杀虫效果均达90.90%,优于5 m和7 m的杀虫效果。The efficacy and applications of N-3 unmanned aerial vehicle （UAV） were determined against rice pests in paddy field tests at different flight heights and different spraying concentrations. The result of field test showed that under a dosage of 432 g/hm2 （ai） of 48% chlorpyrifos·regent EC at late rice tillering, the efficacy of 3, 5 and 10 days after treatment with N-3 UAV spraying was as high as 96.93%, 92.21% and 88.12%, respectively in terms of rice planthoppers. On Cnaphalocrocis medinalis Guenée, 63.29%, 54.00% and 58.33% rice leaves could be kept healthy, those are both superior to the efficacy of spraying with stretcher mounted sprayer. The N-3 UAV worked at the height of 3 and 5 meters under a dosage of 75 g/hm2 of 25% pymetrozine SC at the rice heading stage, the efficacy of 10 days after treatment has no significantly different with a dosage of 60 g/hm2 and 52.5 g/hm2 of 25% pymetrozine SC. On C.medinalis, the efficacy of 10 days after treatment with N-3 UAV spraying at the 3 meters height was as high as 90.90% under a dosage of 480 g/hm2 or 384 g/hm2 of 40% diazinon·phoxim EC. It is better than the efficacy of the N-3 UAV working flight at 5 meters or 7 meters height.

关 键 词：无人直升机 水稻 稻飞虱 稻纵卷叶螟 防治效果 

分 类 号：S435.112.1[农业科学—农业昆虫与害虫防治]