Re-epidemic Causes and Control Measures for Rice Bacterial Leaf Blight

doi:10.11924/j.issn.1000-6850.casb16020017

Chinese Agricultural Science Bulletin ›› 2016, Vol. 32 ›› Issue (24): 180-185.doi: 10.11924/j.issn.1000-6850.casb16020017

Special Issue: 水稻

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Re-epidemic Causes and Control Measures for Rice Bacterial Leaf Blight

Shen Ying¹, Wang Huadi¹, Li Zhongxing², Ye Jianren³, Zhao Min⁴

(¹Zhejiang Provincial Institute for the Control of Agrochemicals, Hangzhou 310020; ²Plant Protection Station of Wenzhou City, Wenzhou Zhejiang 325000;³Plant Protection Station of Wenling City, Wenling Zhejiang 317500; ⁴Plant Protection Station of Tonglu County, Tonglu Zhejiang 311500)

Received:2016-02-03 Revised:2016-08-05 Accepted:2016-03-25 Online:2016-08-29 Published:2016-08-29

Abstract

Abstract: To analyze the historical development and causes of rice bacterial leaf blight (BLB) and discuss the corresponding integrated control measures, occurrence conditions of BLB in China from 1960 to 2014 and Wenzhou from 1971 to 2015 were investigated. The results showed that BLB was serious from 1970s to early 1990s, then occurred intermittently in mid and late 1990s. After entering the 21st century, the occurrence of BLB showed a decreasing trend. However, in 2014 and 2015, the extensive and serious occurrence of BLB in east-south coast and river regions caused great rice yield losses in Zhejiang Province. The occurrence dynamics and influencing factor analysis indicated that the increase of BLB could be mainly attributed to the cultivation of susceptible varieties, degeneration of resistance, frequent typhoon storms, accumulation of the pathogen and improper cultivation and management practices. The control countermeasures including improving disease monitoring and warning, choosing resistant variety, controlling the primary infection origins, and the integrated management techniques such as seedling control, reasonable fertilizer and water management, scientific bactericide application in fields were suggested to effectively control the occurrence and prevalence of BLB.

CLC Number:

S435.111.4

Shen Ying,Wang Huadi,Li Zhongxing,Ye Jianren and Zhao Min. Re-epidemic Causes and Control Measures for Rice Bacterial Leaf Blight[J]. Chinese Agricultural Science Bulletin, 2016, 32(24): 180-185.

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Re-epidemic Causes and Control Measures for Rice Bacterial Leaf Blight

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