20%咯菌腈?精甲霜灵?噻虫嗪悬浮种衣剂(FS)对水稻稻蓟马和恶苗病的防治效果
2021-03-18江曲王可潘求一谈应才
江曲 王可 潘求一 谈应才



摘要 用20%咯菌腈·精甲霜灵·噻虫嗪FS进行水稻拌种,明确其对水稻稻蓟马和恶苗病的防治效果。结果表明,20%咯菌腈·精甲霜灵·噻虫嗪FS对水稻稻蓟马、恶苗病具有较好防效,2.50 g/kg(种子)处理对水稻稻蓟马、恶苗病防效均可达91%以上;20%咯菌腈·精甲霜灵·噻虫嗪FS防治水稻稻蓟马适宜用量为2.50~5.00 g/kg(种子)。
关键词 20%咯菌腈·精甲霜灵·噻虫嗪FS;水稻;稻蓟马;恶苗病;防治
中图分类号 S435.11 文献标识码 A 文章编号 0517-6611(2021)04-0134-02
doi:10.3969/j.issn.0517-6611.2021.04.037
Control Effect of 20% Fludioxonil·metalaxyl-M·thiamethoxam (FS) on Rice Thrips and Rice Bakanae Disease
JIANG Qu1, WANG Ke2,PAN Qiu-yi3 et al
(1.Changde Plant Protection and Inspection Station,Changde,Hunan 415000;2.Changde City Tobacco Company Taoyuan County Branch,Changde,Hunan 415000;3.Anxiang County Plant Protection and Inspection Station, Changde, Hunan 415600)
Abstract The control effect of 20% fludioxonil·metalaxyl-M·thiamethoxam FS mixed with seeds on rice thrips and rice bakanae disease were studied. The results showed that 20% fludioxonil·metalaxyl-M·thiamethoxam FS had good control effects on rice thrips and rice bakanae disease,the control effects of 20% fludioxonil·metalaxyl-M·thiamethoxam FS 2.5 g/kg(seed) on rice thrips and rice bakanae disease were over 91%. It was suitable for controlling rice thrips and rice bakanae disease by 20% fludioxonil·metalaxyl-M·thiamethoxam FS 2.50-5.00 g/kg(seed).
Key words 20% fludioxonil·metalaxyl-M·thiamethoxam FS;Rice;Rice thrips;Rice bakanae disease;Control
作者简介 江曲(1989—),女,湖南长沙人,农艺师,硕士,从事植物保护研究。
收稿日期 2020-07-02
稻蓟马是水稻苗期的主要害虫之一,随着种植业结构调整,在长江中下游地区发生危害加重[1],其体型小,常在卷状初展的水稻心叶中活动并取食,隐蔽性强以致危害不易察觉,加之生活周期短、世代重叠,易因稻蓟马防治失当影响水稻正常生长,对水稻生产造成较大损失。恶苗病从水稻苗期至抽穗期均可发生,随着旱育秧技术的推广,恶苗病发生日益严重,导致水稻产量减少10%~20%,种子带菌是其发病的主要原因,种子处理是防治水稻恶苗病最为经济有效的方法[2-4]。药剂拌种能有效防治水稻苗期病虫害,具有作用效率高、使用安全等特点[5-6]。噻虫嗪是第二代新烟碱类杀虫剂,有触杀、胃毒、内吸活性,使用较低剂量能获得较好防效,能作为种子处理剂防治水稻苗期虫害[7-8]。噻虫嗪与咯菌腈混用拌种处理有助于强化水稻健身栽培,有利于控制水稻苗期稻蓟马的危害[9]。笔者研究20%咯菌腈·精甲霜灵·噻虫嗪悬浮种衣剂(FS)拌种处理对防治水稻稻蓟马和恶苗病的最佳使用剂量,以期更好地为水稻生产提供技术服务。……
