The Control Effect of Prevention and Control Technology Combination against Southern Rice Black-Streaked Dwarf Disease  

组合防控技术对南方水稻黑条矮缩病的防治效果研究（英文）

作　　者：陈琳[1] 周友 彭伟卓 刘秀 黄彩萍[1] 金晨钟 刘佳佳[1] 李静波 邓亚男[1] 覃梦 

机构地区：[1]湖南人文科技学院农业与生物技术学院,湖南娄底417000 [2]农药无害化应用湖南省高校重点实验室,湖南娄底417000

出　　处：《Agricultural Science & Technology》2015年第6期1233-1236,共4页农业科学与技术（英文版）

基　　金：Supported by Science and Technology Plan Project of Department of Education,Hunan Province(14C0606);Youth Foundation of Hunan University of Humanities,Science and Technology(2012QN10);Production-Study-Research Cooperation Guidance Fund of Hunan University of Humanities,Science and Technology(2013CXY04);Research Study and Innovative Experiment Plan Project for College Students in Hunan Province(2013-389)~~

摘　　要：Objective] This study aimed to explore a better prevention and control technology combination against southern rice black-streaked dwarf disease. [Method] The control effects of seed dressing, antiviral agents and fly net along with 25%pymetrozine against southern rice black streaked dwarf disease were determined. [Result] When the seeds were dressed with 60% imidacloprid （FS, 2 g a.i./kg）, and the rice seedlings were sprayed once with 25% pymetrozine （WP, 360 g/hm2） 10 d before the transplanting and sprayed twice with 30% Dufulin （WP, 800×） at three-leaf stage and 7 d after the transplanting respectively, the control efficiency reached 88.05%. When fly net and pesticides were applied simultaneously, the fly net was lifted and 25% pymetrozine （WP） was spayed once on the rice seedlings at six-leaf stage and the seedlings were hardened for 3 d and sprayed once with 25%pymetrozine （WP） 10 d after the transplanting, the control efficiency reached 80.50%. [Conclusion] Seed dressing or applying antiviral agents alone can not better control diseases. The southern rice black-streaked dwarf disease can be better con-trol ed by seed dressing, along with spraying of planthopper-kil ing agents at two-leaf stage, 3 d before the transplanting and 7 d after the transplanting, respectively. If condition al ow, fly net can be instal ed to achieve better control effect.[目的]探究对南方水稻黑条矮缩病防治效果较好的防控技术。[方法]采用田间试验方法测定了药剂拌种和抗病毒剂以及防虫网+25%吡蚜酮对南方水稻黑条矮缩病的防效。[结果]用60%吡虫啉FS 2 g a.i./kg干种子量拌种、移栽前10 d 25%吡蚜酮WP 360g/hm2喷1次,30%毒氟磷WP 800倍在水稻秧苗3叶1心期施药1次、移栽后7 d再施药1次,防效达到88.05%;用防虫网+杀虫剂在6叶1心期揭网,喷施25%吡蚜酮WP 1次,炼苗3 d移栽10 d后,再次喷施25%吡蚜酮WP1次,所得防效为80.50%。[结论]只用拌种或施抗病毒剂的方法不能很好的控制病害的为害。药剂拌种结合在秧苗2叶1心期、移栽前3 d的及移栽后7 d各喷一次杀飞虱药剂防效较好,有条件的地方兼用防虫网效果更好。

关 键 词：Southern rice black-streaked dwarf disease PLANTHOPPER AGENTS Seed dressing Fly net 

分 类 号：S435.111.4[农业科学—农业昆虫与害虫防治]