不同杀菌剂对苹果黑星病菌的毒力测定  

Toxicity Test of Different Fungicides to Venturia inaequalis

作　　者：王华[1] 李鹏 WANG Hua;LI Peng(Yili Vocational and Technical College,Xinjiang Yining835000,China;Syngenta(China)Investment Co.,Ltd.,Beijing100005,China)

机构地区：[1]伊犁职业技术学院,新疆伊宁835000 [2]先正达(中国)投资有限公司,北京100005

出　　处：《现代农药》2022年第6期55-57,共3页MODERN AGROCHEMICALS

基　　金：新疆维吾尔自治区自然科学基金(2020D01A125)。

摘　　要：为了筛选出能有效抑制苹果黑星病菌的杀菌剂,本研究采用菌丝生长速率法选用7种杀菌剂对苹果黑星病菌进行室内毒力测定。结果表明,7种供试杀菌剂对苹果黑星病菌菌丝的EC_(50)值按从小到大顺序依次是20%氟唑菌酰羟胺SC、25%吡唑醚菌酯SC、20%吡噻菌胺SC、10%苯醚甲环唑WG、50%啶酰菌胺WG、80%嘧霉胺WG和50%嘧菌环胺WG。抑菌效果最好的是20%氟唑菌酰羟胺SC,EC_(50)值为1.3499×10^(-5)μL/mL,抑菌效果最差的是50%嘧菌环胺WG,EC_(50)值为4.3162μg/mL。In order to screen out the fungicides that can effectively control Venturia inaequalis,the inhibition of 7 fungicides on the growth of V.inaequalis was measured by mycelial growth rate method.The results showed that the EC_(50) value of 7 tested fungicides for the mycelia of V.inaequalis in descending order were 20%pydiflumetofen SC,25%pyraclostrobin SC,20%penthiopyrad SC,10%difenoconazole WG,50%boscalid WG,80%pyrimethanil WG and 50%cyprodinil WG.The best inhibitory effect rate was 20%pydiflumetofen SC,and the EC_(50)value was 1.3499×10^(-5)μL/mL.The worst inhibitory effect rate was 50%cyprodinil WG,and the EC_(50)value was 4.3162μg/mL.

关 键 词：苹果黑星菌 杀菌剂 毒力 菌丝生长速率法 

分 类 号：TQ450.2[化学工程—农药化工]