基于不同种衣剂的玉米茎腐病优势致病菌拟轮枝镰孢菌室内毒力测定与防效评价  

Indoor toxicity measurement and field control efficacyevaluation of 5 different coating agents on cornFusarium stalk rot in Xinjiang maize

作　　者：高国文 王小武 付开赟 贾尊尊 孙健博 吐尔逊·阿合买提[2] 李克梅[1] 丁新华[2] 郭文超[2] GAO Guowen;WANG Xiaowu;FU Kaiyun;JIA Zunzun;SUN Jianbo;Tuerxun Ahemaiti;LI Kemei;DING Xinhua;GUO Wenchao(College of Agriculture,Xinjiang Agricultural University,Urumqi 830052,China;Key Laboratory of Integrated Pest Management on Crop in Northwestern Oasis,Ministry of Agriculture and Rural Affairs/Xinjiang Key Laboratory of Agricultural Biosafety/Institute of Plant Protection,Xinjiang Academy of Agricultural Sciences,Urumqi 830091,China)

机构地区：[1]新疆农业大学农学院,乌鲁木齐830052 [2]新疆农业科学院植物保护研究所/农业农村部西北荒漠绿洲作物有害生物综合治理重点实验室/新疆农业生物安全重点实验室,乌鲁木齐830091

出　　处：《新疆农业科学》2025年第2期373-378,共6页Xinjiang Agricultural Sciences

基　　金：新疆维吾尔自治区重点研发计划任务专项(2021B02002-2);新疆玉米产业技术体系(XJARS-02);新疆农业科学院农业科技创新稳定专项(xjnkywdzc-2022004)。

摘　　要：【目的】针对新疆玉米茎腐病优势致病菌株拟轮枝镰刀菌(Fusarium.verticillioides)毒力测定,筛选出高效的种衣剂种类及其最佳施药量,为该病害的科学防控提供依据。【方法】采用菌丝生长速率法结合田间小区试验,系统评价5种种衣剂对拟轮枝镰孢菌的室内抑菌效果和田间防效。【结果】5种供试种衣剂对该菌株具有较好的抑菌效果,其EC 50为0.1852~9.3584 mg/L。35 g/L洛菌·精甲霜FS 175 mL/100kg种子包衣处理防效最高,为84.96%,其余依次为18%噻灵·咯·精甲FS 250 mL/100kg种子、30%嘧·咪·噻虫嗪FS 750 mL/100kg种子、35 g/L洛菌·精甲霜FS 150 mL/100kg种子和18%噻灵·咯·精甲FS 200 mL/100 kg种子,防效为74.11%~84.72%。【结论】新疆玉米镰孢茎腐病田间防治的种衣剂及其施药量分别为35 g/L洛菌·精甲霜FS 125~175 mL/100kg种子、18%噻灵·咯·精甲FS 150~250 mL/100kg种子、4%精甲·咯菌腈FS 120~150 mL/100kg种子和30%嘧·咪·噻虫嗪FS 600~750 mL/100kg种子。【Objective】To screen efficient seed coating agents and their optimal dosage based on the dominant pathogenic strain Fusarium Sporotrichioide(Fusarium verticillioides)corn stem rot disease in Xinjiang in the hope of providing guidance for scientific prevention and control of the disease in production.【Methods】The mycelial growth rate method was used in combination with field plot experiments and systematic evaluation of the indoor antibacterial effect and field actual control effect of five coating agents on Fusarium Sporotrichioide.【Results】The indoor toxicity test showed that the five tested seed coating agents had good antibacterial effects on the strain,with an EC 50 range of 0.193 mg/L to 44.142 mg/L.In terms of field control effectiveness,35 grams/liter of Loxomyces cerevisiae·Jingjia frost FS 175 mL/100kg seeds was the highest,accounting for 84.96%.The next in order was 18%thiacloprid·chlorpyrifos·chlorpyrifos FS 250 mL/100kg seeds,30%imidacloprid·chlorpyrifos FS 750 mL/100kg seeds,35 g/L Loxobacterium·chlorpyrifos FS 150 mL/100kg seeds,and 18%thiacloprid·chlorpyrifos·chlorpyrifos FS 200mL/100kg seeds,all with control effects ranging from 74.11%to 84.72%.【Conclusion】The seed coating agent and its recommended application amount for the field control of Fusarium oxysporum stem rot disease in Xinjiang corn is 35 g/L Loxomyces·Fenpropafenone FS(125-175)mL/100kg seeds,18%Thiazolin·Fenpropafenone FS(150-250)mL/100kg seeds,4%Fenpropafenone FS(120-150)mL/100kg seeds,and 30%Fenpropafenone·Fenpropafenone FS(600-750)mL/100kg seeds.

关 键 词：玉米茎腐病 拟轮枝镰刀菌 室内毒力 防效评价 

分 类 号：S512[农业科学—作物学]