Welcome to Chinese Journal of Biological Control,Today is

journal1 ›› 2016, Vol. 32 ›› Issue (5): 619-626.DOI: 10.16409/j.cnki.2095-039x.2016.05.011

Previous Articles     Next Articles

Preparation of Wettable Powder of Bacillus amyloliquefaciens BA-12 and Its Control Effect on Walnut Root Rot

LI Shujiang, FANG Xinmei, ZENG Yanling, FAN Suheng, ZHU Tianhui   

  1. College of Forestry, Sichuan Agricultural University, Chengdu 611130, China
  • Received:2016-03-13 Online:2016-10-08 Published:2016-10-08

Abstract: The single factor and orthogonal test methods were used to screen the carriers, additives and their proportioning to obtain Bacillus amyloliquefaciens BA-12 wettable powder with excellent control effect on walnut root rot. The B. amyloliquefaciens BA-12 wettable powder prescription were comprised 10% B. amyloliquefaciens, 30% the carrier kaolin, 10% sodium dodecyl benzene sulfonate, 5% dispersing agent sodium tripolyphosphate, 2.5% protecting agent humic acid, with the content of living bacterium was 1×108 cfu/g. Its wetting time was 40 s, suspension rate was 79%, pH 6.72, rate of water content was 2.61%. The B. amyloliquefaciens BA-12 wettable powder were stable under the conditions of 30-45℃, pH 6-8 and ultraviolet irradiation 20-30 min. The 500-1000 times diluents on walnut root rot was the recommended concentration in potted tests.

Key words: Bacillus amyloliquefaciens, wettable powder, walnut root rot, control effect

CLC Number: