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Journal of Agriculture ›› 2018, Vol. 8 ›› Issue (6): 10-14.doi: 10.11923/j.issn.2095-4050.cjas17100010

Special Issue: 小麦

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Field Efficacy of Biocontrol Agents in Controlling Wheat Scab

  

  • Received:2017-10-19 Revised:2017-12-19 Accepted:2018-01-15 Online:2018-06-26 Published:2018-06-26

Abstract: In order to improve the control effect of wheat scab, the study takes Wheat Zheng 7689 as test material to examine the effects of five different biocontrol agents,which are Bacillus Subtilis WP, Amino-oligosaccharide AS, Shinyomycin SC, Oligosaccharin AS, Jinggang Bacillus Cereus SC and two different Carbendazims, which are Jinggang Carbendazim SC, Carbendazim WP for wheat scab on field in Henan Plain. The results indicate that in heavy wheat scab periods,twice usages of biocontrol agents significantly improve the effects of disease prevention thus twice usages of biocontrol agents are necessary. Furthermore, in the initial stage of flowering and the stage of blossoming, the best treatment of wheat scab is the usage of Jinggang Carbendazim during treatment stage ⑥, with a 78.21% prevention effect of wheat ear disease and a 80.55% of disease control. The usage of Carbendazim,Shinzamycin and Bacillus Subtilis during treatment stage ⑦,③ and①show no big differences on disease control effect with ratios more than 75%. Jinggang Carbendazim during treatment ⑥ performs the best yield-increasing effect with a 26.51% increasing rate followed by Carbendazim during treatment ⑦, 25.03%. To conclude, Jinggang Carbendazim is relatively advantageous as the first choice, while Carbendazim remains useful. Bacillus Subtilis and Shinzamycin can be used as feasible alternatives of Carbendazim .

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