Soil drenching and foliar spray with bioagents for reducing wheat leaf diseases under natural field conditions

Abstract Foliar diseases, like powdery mildew, septoria leaf blotch (SLB) and stem rust, affect wheat plants causing severe yield losses. Biofertilizers Pseudomonas fluorescens Migula (NRC2041) Bacillus subtilis Ehrenberg (NRC313) or the arbuscular mycorrhizal fungi Glomus mosseae Tul. & C. (NRC212A) G. fasciculatum (NRC212B) were used for soil treatment followed by foliar spray with Trichoderma harzianum P. to manage severity of diseases under field conditions two successive growing seasons. Under conditions, at all drench application treatments, Sids 14 was most sensitive cultivar high disease Misr 2 Giza 168. Also, obtained results showed that effective treatments mycorrhizae either T. . Meanwhile, fungicide Amistar a superior reduction in compared other applied treatments. In addition, increased correlated decreased recorded diseases. The present study suggests using bioagents reducing increasing grain conditions.