摘要
[目的]由于嘧霉胺作用位点单一,加上连年使用和不合理的提高用药量,许多地区产生了严重的抗药性,为了延长嘧霉胺的使用寿命,降低抗药性和使用成本,研究其复配制剂。[方法]将木霉菌素和嘧霉胺2种作用机制不同的药剂进行复配,通过复配制剂的共毒系数、室内离体试验和盆栽药效评价。[结果]发现木霉菌素与嘧霉胺1∶9进行复配,共毒系数达171.1,盆栽药效比嘧霉胺单一防效高21.4%。[结论]该复配增效明显,具有推广的应用价值。
[Aims] The fungicide pyrimethanil has a single action site. Serious drug resistance has developed in many places because pyrimethanil has been used for years and applied in unreasonably high dosesl In order to extend the useful life of pyrirnethanil and to reduce the drug resistance and the cost, a composition was produced based on trichodermin and pyrimethanil which have different mechanisms. [Methods] The co-toxicity coefficient of the complex fungicide was tested and the efficacy was evaluated indoor and in pot plants. [Results] The results showed that the co-toxicity coefficient was 171.1 by using the complex of trichodermin and pyrimethanil with a ratio of 1 ： 9. Its efficacy in the pot plant was 21.4% higher than that of pyrimethanil. [Conclusions] In conclusion, this complex has obvious synergistic action and possesses popularization and application value.
出处
《农药》
CAS
CSCD
北大核心
2013年第5期377-379,382,共4页
Agrochemicals
基金
杭州市科技计划项目种子基金(20102431K156)
国家863课题微生物杀菌剂研究与产品创制(2011AA10A205)
公益性行业(农业)科研专项(200903052)
关键词
木霉菌素
嘧霉胺
复配
抗药性
灰霉病
trichodermin
pyrimethanil
complex preparation
drug resistance
gray mold rot
