Combination of Bacillus Subtilis YB-05 and Shenqinmycin for Integrated Control of Wheat Crown Rot

doi:10.16409/j.cnki.2095-039x.2018.06.009

Abstract

Abstract: Wheat crown rot caused by Fusarium pseudograminearum is an important soil-brone disease and effective control measures are desperately needed. In this study, B. subtilis YB-05 and shenqinmycin were combined and the efficiency of biopesticides to control wheat crown rot was evaluated in the greenhouse and field conditions. The results showed that the colony growth of YB-05 was not impaired by 500 μg/mL shenqinmycin. Greenhouse and field trials demonstrated that treatments with the combination of B. subtilis YB-05 and shenqinmycin showed better control effect than that of the single biocontrol treatment and 4.8% myclobutanil. This treatment also promoted wheat growth and increased wheat yields. The control efficacy of the combined biopesticide was 69.8% in greenhouse, and 57.8% and 45.7% in the two surveys of field, respectively. It is concluded that the combination of B. subtilis YB-05 and shenqinmycin shows synergetic effect and has the potential to be developed as a commercial biopesticide agent aiming at less pesticide application.

Key words: wheat crown rot, Fusarium pseudograminearum, Bacillus subtilis, shenqinmycin, biological control

CLC Number:

S476

ZHANG Jie, TANG Mengmeng, XIA Mingcong, LIN Qitong, SUN Runhong, YANG Yanyan, YANG Lirong, LI Honglian. Combination of Bacillus Subtilis YB-05 and Shenqinmycin for Integrated Control of Wheat Crown Rot[J]. journal1, 2018, 34(6): 866-872.

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