几种药剂对水稻稻曲病田间防治效果的影响  

Effects of several pesticides on the field control of rice false smut

作　　者：黄茂 方海 邓斌 吴鹏 张业辉 覃春芳 HUANG Mao;FANG Hai;DENG Bin;WU Peng;ZHANG Yehui;QIN Chunfang(Xuanzhou District Planting Industry Bureau,Xuancheng 242000,China;Shanghai Baimaoling Farm Co.,Ltd.,Shanghai 200000,China)

机构地区：[1]宣城市宣州区种植业局,安徽宣城242000 [2]上海市白茅岭农场有限公司,上海200000

出　　处：《安徽农学通报》2024年第18期74-77,共4页Anhui Agricultural Science Bulletin

摘　　要：为筛选出适合水稻稻曲病防治的药剂,本试验选择18.7%丙环·嘧菌酯、43%戊唑醇、23%醚菌·氟环唑和24%噻呋酰胺,设置了6个药剂处理和1个空白对照,比较各处理对水稻稻曲病的田间防治效果。结果表明,以分蘖末期施用24%噻呋酰胺,破口前7~10 d和齐穗期均施用18.7%丙环·嘧菌酯(处理2)的防效较好,小区水稻产量最高,为200.6 kg;分蘖末期施用24%噻呋酰胺,破口前7~10 d和齐穗期均施用18.7%丙环·嘧菌酯+43%戊唑醇(处理3)的防效最好,小区产量较高,为189.4 kg。综合来看,建议在水稻分蘖末期使用24%噻呋酰胺300 mL/hm^(2),破口前7~10 d和齐穗期分别施用1次18.7%丙环·嘧菌酯750 mL/hm^(2),可有效预防和控制稻曲病的发生,对水稻安全生产具有一定的积极作用。In order to screen for suitable pesticides for the prevention and control of rice false smut,18.7%propiconazole,43%tebuconazole,23%ether bacteria fluconazole,and 24%thiamethoxam were selected.Six pesticide treatments and one blank control were set up to compare the field control effects of each treatment on rice false smut.The experimental results showed that,the application of 24%thiamethoxam at the late tillering stage,and the application of 18.7%propiconazole(treatment 2)at 7-10 days before the breakthrough and during the heading stage had better control effects,with the highest yield of 200.6 kg in the plot.The best control effect was achieved by applying 24%thiamethoxam at the end of tillering,and applying 18.7%propiconazole and 43%tebuconazole(treatment 3)at 7-10 days before and during the heading stage.The yield of the plot was relatively high,at 189.4 kg.Overall,it was recommended to use 300 mL/hm^(2) of 24%thiamethoxam during the late tillering stage of rice,and apply 750 mL/hm^(2) of 18.7%propiconazole once every 7-10 days before the breakthrough and during the full heading period.This can effectively prevent and control the occurrence of rice false smut,and has a certain positive effect on rice safety production.

关 键 词：水稻稻曲病 化学药剂 病情指数 水稻产量 

分 类 号：S432[农业科学—植物病理学]