文献类型： 外文期刊

作者： Wang, W ¹ ; Ben-Daniel, BH ² ; Cohen, Y ² ;

作者机构： 1.Bar Ilan Univ, Fac Life Sci, IL-52900 Ramat Gan, Israel

2.Bar Ilan Univ, Fac Life Sci, IL-52900 Ramat Gan, Israel; Bar Ilan Univ, Fac Life Sci, IL-52900 Ramat Gan, Israel; Hebei Acad Agr & Forestry Sci, Inst Plant Protect, Baoding 071000, Peoples R China; Inulex Ltd, Keramim, Mobile Post Neg, Israel

关键词： Blumeria graminis f. sp tritici;herbal extracts;Phytophthora infestans;Pseudoperonospora cubensis;Puccinia helianthi

期刊名称：PHYTOPATHOLOGY （ 影响因子：4.025； 五年影响因子：4.394 ）

ISSN： 0031-949X

年卷期： 2004 年 94 卷 10 期

页码：

收录情况： SCI

摘要： Leaves of Inula viscosa were collected from the field, dried, and extracted with a mixture of acetone and n-hexane. The oily, water-insoluble pastes obtained after evaporation of the solvents were used for the control of foliar diseases in growth chambers. The pastes, either dissolved in acetone or emulsified in water, effectively controlled downy mildew of cucumber, late blight of potato or tomato, powdery mildew of wheat, and rust of sunflower. Mean effective dose (concentration) required for 90% inhibition of disease values for acetone solutions and water emulsions ranged from 0.68 to 1.02% and 0.65 to 1.00% (wt/vol), respectively. Dry matter content in fresh leaves, paste-extract yield in dry leaves, and disease control efficacy of paste extracts were similar in leaves of I. viscosa collected during May to October, suggesting that, for practical use, harvests can be conducted during most of the growing season. The results show that I. viscosa may be used as an herbal source for fungicidal preparations against foliar diseases caused by pathogens belonging to the families Oomycetes, Ascomycetes, and Basidiomycetes.