李民 刘敏 刘元兵 裴德明

摘要 在水稻秧田期采用70%噻虫嗪种子处理WS包衣，一叶一针期使用25%吡蚜酮SC喷雾，移栽前使用25%噻虫嗪WG喷雾，结合大田期治虫加叶面肥配施的用药模式，对防治稻飞虱控制水稻黑条矮缩病效果明显，秧田期和大田期防虫效果分别为93.75%、95.38%，未发生水稻黑条矮缩病病害。该药肥配施模式对水稻生长安全，且能起到很好的增产效果。

关键词 70%噻虫嗪种子处理WS;稻飞虱;水稻黑条矮缩病;防效;增产

中图分类号 S435.111文献标识码 A

文章编号 0517-6611（2021）02-0135-03

doi：10.3969/j.issn.0517-6611.2021.02.037

开放科学（资源服务）标识码（OSID）：

Field Trials of the Combined Application of Several Pesticides to Control Rice Black Streaked Dwarf Disease

LI Min，LIU Min，LIU Yuanbing et al （Agricultural Comprehensive Service Center of Feixi County， Anhui Province，Feixi，Anhui 231200）

Abstract 70% thiamethoxam WS was used to coat the seeds in the rice seedling stage， 25% pymetrozine SC spray was used in one leaf and one needle stage， and 25% thiamethoxam WG spray was used before transplanting， combined with the application mode of insect control and foliar fertilizer in the field， it had obvious effect on the control of rice planthoppers and the control of rice black stripe dwarf disease.The insect control effects in seedling stage and field stage were 93.75% and 95.38%， respectively， and no rice black stripe dwarf disease had occurred. This model was safe for rice growth and couldplay a very good role in increasing yield. This method of medication was safe for the growth of rice， and could play a good role in increasing yield.

Key words 70% thiamethoxam WS;Rice planthopper;Rice black stripe dwarfdisease;Control effect;Increase yield

水稻黑條矮缩病（rice blackstreaked dwarf disease）是以稻飞虱为传毒媒介的水稻病毒性病害，分为黑条矮缩病和南方水稻黑条矮缩病[1]。水稻整个生育期内都有可能会发生黑条矮缩病，以灰飞虱传毒而引发病害流行，发病越早，为害水稻影响产量越大[2];南方水稻黑条矮缩病则主要以白背飞虱为媒介进行传毒，该病毒可在白背飞虱的体腔和唾液腺中大量复制，病毒一旦侵入白背飞虱体内，该虫则终身携带病毒并保有传毒能力[3]。防治水稻黑条矮缩病控制该病毒流行，抓住防控最佳时期，在最易感病的秧田期和本田前期狠治稻飞虱是重点[4]。笔者通过药效示范，摸索最佳的药剂配施方法来压低病虫基数，以期筛选出控虫防病壮苗的药肥配施方法来防控水稻黑条矮缩病。

1 材料与方法

1.1 试验药剂 70%噻虫嗪种子处理WS（先正达中国投资有限公司提供）;10%吡虫啉WP（江苏丰山集团有限公司，市售自购）;48%毒死蜱EC（江苏丰山集团有限公司，市售自购）;25%吡蚜酮SC（江苏安邦电化有限公司，市售自购）;25%噻虫嗪WG、叶面肥（爱沃富与好施得）（江门市植保有限公司提供）。……