防治煙草野火病的藥劑測定與篩選
Determination and Selection of Pesticides against Tobacco Wildfire Disease(Pseudomonas syringae pv. Tabaci)
-
摘要: 采用常規(guī)平板紙碟法,，室內測定了12 種藥劑對煙草野火病菌（Pseudomonas syringae pv. tabaci）的皿內抑菌效果,， 結果表明，50%福美雙可濕性粉劑,、25%休菌清乳油、72%農用鏈霉素可溶性粉劑和10%浸種靈乳油對P. syringae pv. tabaci 具有良好的抑菌效果,。對不同藥劑進行優(yōu)化組合復配,，采用同樣的常規(guī)平板紙碟法測定其抑菌效果，結果表明,，復配組合藥劑的抑菌效果比單劑的抑菌效果有不同程度的提高,，其中以農用鏈霉素+福美雙,、新植霉素+銅高尚、福美雙+浸種靈,、農用鏈霉素+硫酸銅和銅高尚+浸種靈等5 種復配組合的抑菌效果較好,。本研究可以為生產上煙草野火病的防治提供基礎數(shù)據和參考。Abstract: The bacteriostatic tests of total 12 pesticides against tobacco wildfire disease (Pseudomonas syringae pv. tabaci）were investigated by cup-plate method in laboratory. Results showed that high inhibitory effect occurred in the treatment with 72% agricultural streptomycin, 50% thiram, 25% bromothalonil, and 10% methylene dithiocyanate. The effect of various treatment combinations was further investigated to find the optimum pesticide. The treatment combination exhibited higher inhibitory effect. The better combination included agricultural streptomycin + thiram, thiram + methylene dithiocyanate, agricultural streptomycin + Copper nitrosulfuric oxytetracycline hydrochloride+ alkali copper sulfate, + methylene dithiocyanate alkali copper sulfate.
下載: