Identification and Development Pattern of Bacterial Spot of Pepper and the Control Effect in Shanxi Province

doi:10.3321/j.issn:1000-7091.2002.03.026

Abstract

Abstract: The control and development pattern of bacterial spot of pepper were studied.The result shows that the eight isolates from pepper in Shanxi province were identified by pathogenic and bacteriological methods and differential host as XcvT race 3 of Xanthomonas campestr is pv.vesicatoria(Doidge)Dye,1978.After the pepper were planted in May,within a period of ten days at every month,when the average temperature were above 18.5 and rainfall more than 11.1 mm,the spot occurred in plant.Before end of July,the prevalence of disease were depended on rainfall of a period of ten days.The more rainfall was,the higher disease severity was.The fastigium of disease was in August.Spraying twice at seedling with Xinzhimeisu at 150 mg/ kg and plant twice at 200 mg/ kg could get good the control effect.Antagonistic strain Sheng fang 31 also showed good control effect.

Key words: Shanxi province, Bacterial spot of pepper, Development pattern, Control

CLC Number:

S436.418(225)

CHENG Boying, ZHAO Tingchang, SUN Fuzai, NIU Yushan, LI Wenbin. Identification and Development Pattern of Bacterial Spot of Pepper and the Control Effect in Shanxi Province[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2002, 17(3): 129-134. doi: 10.3321/j.issn:1000-7091.2002.03.026.

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