复方白毛藤提取液防治稻瘟病初报

通过室内毒力测定和温室盆栽试验探讨复方白毛藤提取液在植物病害防治上的作用。室内毒力测定发现,稀释500倍的复方白毛藤提取液对水稻纹枯病菌、油菜菌核病菌、小麦赤霉病菌、烟草炭疽病菌、水稻恶苗病菌、稻瘟病菌的菌丝生长抑制率分别是:26.2%、17.1%、43.2%、10.2%、33.2%、46.3%。盆栽试验发现稀释800倍的复方白毛藤提取液对稻瘟病具有一定的防治作用,防治效果为67.4%。研究表明复方白毛藤提取液是一种潜在的防治稻瘟病的植物性农药。

Primary Study on Rice Blast Controlling Using Compound Solanum lyratum thunb Extraction

The probability of compound Solanum lyratum thunb extraction on control plant diseases was discussed through in vitro and potted test. Through bioassay, the inhibition of diluted 500 times compound Solanum lyratum thunb extraction to mycelial growth of Rhizoctonia solani, Sclerotinia sclerotiorum, Fusarium graminearum, Colletotrichum gloeosporioides, Gibberella fujikuroi, Magnaporthe grisea were 26.2%, 17.1%, 43.2%, 10.2%, 33.2% and 46.3%, respectively. Potted rice test showed that the result of controlling Rice Blast was 67.4% using diluted 800 times compound Solanum lyratum thunb extraction. It indicated that compound Solanum lyratum thunb extraction was a potential botanic pesticide to control Rice Blast.