摘要
【方法】通过菌丝生长速率法测定了10种杀菌剂对引起甘薯黑斑病的甘薯长喙壳菌（CeratocystistimbriataEllisandHalsted）的毒力及部分药剂混配的联合毒力。【结果】粉唑醇毒力较高，其EC50值为0．0654mg／L；其次为氟硅唑，EC50值为0．1508mg／L；异菌脲、三唑酮、嗯霉灵的EC50值在1-10mg／L之间，抑菌活性高于甲基硫菌灵。联合毒力的测定结果表明：甲基硫菌灵与百菌清质量比2：1的配比、甲基硫菌灵与粉唑醇质量比2：1的配比、百菌清与粉唑醇质量比5：1的配比增效作用最强。[结论]为筛选防治甘薯黑斑病的杀菌剂提供了毒力测定依据。
[Methods] The toxicity and the partial co-toxicity of ten fungicides to Ceratocystis timbriata Ellis and Halsted were tested by mycelial growth rate. [Results] The results showed that flutriatol has stronger toxicity with ECs0 of 0.0654 rag/L, followed by flusilazole with ECs0 of 0.1508 mg/L; fungicides iprodione, triadimefon and hymexazol, with ECs0 of 1-10 mg/L, displayed stronger inhibition than thiophanate-methyl. The results of co-toxicity indicated that the mixtures with the mixing ratio of thiophanate-methyl and chlorothalonil as 2： 1, thiophanate-methyl and flutriafol as 2 ： 1 and chlorothalonil and flutriafol as 5 ： 1 have the strongest synergistic effect. [Conclusions] These studies on testing the toxicity provide the basis for screening suitable fungicides in controlling C. fimbriata.
出处
《农药》
CAS
北大核心
2012年第6期452-454,共3页
Agrochemicals
基金
国家甘薯产业技术体系建设资助项目(CARS-11-B-07)
关键词
甘薯长喙壳菌
杀菌剂
毒力
联合毒力
Ceratocystis fimbriata Ellis and Halsted
fungicide
toxicity
combined toxicity
