|Table of Contents|

Control of Grape Downy Mildew by Four Compound Bacillus Agent

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2021年06
Page:
29-35
Research Field:
Publishing date:

Info

Title:
Control of Grape Downy Mildew by Four Compound Bacillus Agent
Author(s):
ZHANG Qiangqiang1; REN Miaomiao1; GU Peiwen1; LI Jiahong1; SU Wenping2
(1.School of Agriculture，Ningxia University，Yinchuan，Ningxia 750021;2.Ningxia Lilan Winery Co.Ltd.，Yinchuan，Ningxia 750104)
Keywords:
grape downy mildew; compound Bacillus agent; indoor in vitro control effect; field control effect
PACS:
-
DOI:
10.11937/bfyy.20202238
Abstract:
Taking ‘Chardonnay’ grape leaves as materials，in vitro leaf inoculation method and field spray method were used to explore the control effect of four kinds of compound Bacillus agents on grape downy mildew,in order to provide scientific reference and technical support for biological control of grape downy mildew.The results showed that four kinds of compound Bacillus agents could effectively control grape downy mildew.In the laboratory prevention and treatment test，the efficacy of compound Bacillus agent Ⅳ was the best when diluted 50 times，82.51% and 83.16%，respectively.Compared with other agents，the EC50基 value of the compound Bacillus agent Ⅳ was the smallest and the bacteriostatic activity was the highest，which were 5.00×107 cfu?mL-1基 and 3.95×107 cfu?mL-1基基，respectively.In the field control test，compound Bacillus agent Ⅳ had better control effect on downy mildew of grape with long duration and stable efficacy.The control effect of compound Bacillus agent Ⅳ after 4 times of continuous application could reach 80.39%，It coud be used as the raw and preventive medicine to prevent grape downy mildew in production.

References:

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Last Update: 2021-06-09