摘要
稻飞虱是上思县为害水稻的主要害虫之一,近年来常常爆发成灾为害,给粮食安全生产造成很大的损失。试验选用10%三氟苯嘧啶悬浮剂(Pyraxalt TM)防治水稻稻飞虱,与植保无人机喷药(处理I,240 m L/hm^2兑水13.65 L),机动喷雾机喷药(处理Ⅱ:240 m L/hm^2兑水900 kg)与农民自防(处理III)和清水对照处理(CK)比较防治效果。结果表明施药后3,7,20,40,60 d,应用植保无人机喷药处理对稻飞虱的防效为88.50%~99.95%;机动喷雾机喷药的防治效果在85.18%~99.91%,优于农民自防区处理。在防控南方水稻黑条矮缩病药后20~60 d防治效果达96.23%~98.91%和94.34%~98.36%,显著优于农民自防区处理。因此,10%三氟苯嘧啶悬浮剂无论在使用植保无人机喷雾还是人工机动喷雾器喷雾对防治稻飞虱效果显著的同时,对南方水稻黑条矮缩病也表现出突出的防控效果。
The planthopper is one of the main pests causing rice damage in Shangsi County. In recent years, the pest often broke out and induced serious damage, causing great losses in rice production. In this experiment, 10% triflumezopyrim（Pyraxalt^TM） was used to control rice planthopper. Unmanned aerial vehicle spraying（Treatment I, 16 ml Pyraxalt^TM diluted in 0.9 l L water spray for 666.7 m^2）, motorized sprayer（Treatment Ⅱ： 16 ml Pyraxalt^TM diluted in 60 L water） and farmers＇ self-spray for pests control（Treatment III）, clean water as control treatment（CK）, all were used to evaluated the field efficacy on planthopper control. The results showed that after 3 d, 7 d, 20 d, 40 d, and 60 d after spraying, the control effects of unmanned aerial vehicle spraying（Treatment I） were between 88.50% and 99.95%, and that of the motorized sprayer（Treatment Ⅱ）were 85.18%-99.91%, and both were better than that in the farmers＇ self-spray pest control（Treatment III） areas. And, the prevention andcontrol effects on southern rice black-streaked dwarf virus by unmanned aerial vehicle spraying（Treatment Ⅰ） were between96.23 and 98.91%, and that of the motorized sprayer（Treatment Ⅱ） were 94.34%-98.36% after 20 to 60 days＇ treatment, which was significantly better than that in the farmers＇ self-spray（Treatment Ⅲ） areas. Therefore, the 10% triflumezopyrim（Pyraxalt^TM）, both by unmanned aerial vehicle spraying and motorized sprayer, had significant effects on planthopper control, and also shown prominent prevention and control effects on southern rice black-streaked dwarf virus.
作者
韦世训
周荣金
王信霞
WEI Shi-xun;ZHOU Rong-jin;WANG Xin-xia(Plant Protection Workstation of Shangs;Guangzhou Branch,DuPont China Group Co.,Ltd;Nanning Huijin Agricultural Resources Co.,Ltd)
出处
《生物灾害科学》
2018年第2期97-100,共4页
Biological Disaster Science
关键词
10%三氟苯嘧啶
稻飞虱
南方水稻黑条矮缩病
田间防效试验
10% triflumezopyrim （Pyraxalt^TM）
planthopper
southern rice black-streaked dwarf virus
fieldefficacy trials
