Prevention and Control of Two Newly-Invasive Diseases of Sweet Potato

doi:10.11923/j.issn.2095-4050.cjas18060015

Abstract

Abstract: The foot rot disease (FRD) on sweet potato is a newly discovered one. A study was carried out to identify the pathogenic bacteria leading to FRD on sweet potato. This study involved the pathogenic bacteria identification, occurrence regularity investigation, as well as the control tests over a period from 2015 to 2017. Results obtained showed that FRD on sweet potato grown in Taizhou was attributable to the intrusive infection of two species: stem rot bacteria (Dickeya dadantii) and foot rot bacteria (Phomopsis destruens). Also, the distribution, symptom identification, pathogen morphology, invasion path and occurring characteristics of the two diseases were observed and investigated in detail. Some measures were put forward, which included strengthening plant quarantine, establishing seedling system, conducting paddy and drought rotation in field, flooding sweet potato field, farmland cleanliness and chemical prevention. In addition, it was suggested to increase the economic support, carry out the selection of resistance genes in pathogens, cultivate resistant group, and explore the causes of new invasive diseases. Hopefully, all these suggestions could provide a reference for controlling the two sweet potato diseases effectively.

CLC Number:

S432.4

References

[1]刘庆昌.甘薯在我国粮食和能源安全中的重要作用[J].科技导报,2004,(9):21-22.
[2]马代夫,李强,曹清河,等.中国甘薯产业及产业技术的发展与展望[J].江苏农业学报,2012,28(5):969-973．
[3]沈肖玲,林钗,钱俊婷,等.甘薯茎腐病症状及其病原鉴定[J].植物病理学报,2017,47(4):1-13.
[4]黄巧雯,杨宏仁,林静宜,等.甘薯基腐病菌Phomopsis destruens生理特性及防治技術研究[J].台湾农业研究,2016,65(1): 45-53.
[5]Schaad N W,and Brenner D．A bacterial wilt and root rot of sweet potato caused by Erwinia chrysanthemi．Phytopathology,1977,67:302-308．
[6]张敏荣,余继华,卢璐,等.台州新发现甘薯茎腐病[J].植物检疫,2016,30(3):84-86.
[7]黄立飞,罗忠霞,房伯平,等.甘薯茎腐病的研究进展[J].植物保护学报,2014,41(1):118-122.
[8]方树民.福建省部分地区发生甘薯细菌性黑腐病[J].植物保护,1991,17(5):52.
[9]Huang Lifei,Fang Boping,Luo Zhongxia,et a1.First report of bacterial stem and root rot of sweet potato caused by a Dickeya sp.(Erwinia chrysanthemi)in China[J].Plant Disease,20l0,94:1503．
[10]高波,王容燕,马娟,等.河北省甘薯茎腐病研究初报[J].植物保护2015,41(3):119-122.
[11]秦素研,黄立飞,葛昌斌,等.河南省甘薯茎腐病的分离与鉴定[J].作物杂志,2013(6):52-55.
[12]黄立飞,罗忠霞,邓铭光,等.甘薯新病害茎腐病的识别与防治[J].广东农业科学,2011(7):95-96.
[13]Samson R,Legendre J B,Christen R,et al.Transfer of Pectobacterium chrysanthemi(Burkholder et a1．1953)Brenner eta1.1973 and Brenneria paradisiaca to the genus Dickeya gen．nov．as Dickeya chrysanthemi comb．nov．and Dickeya paradisiaca comb．nov.and delineation of four novel species,Dickeya dadantii sp．nov.,Dickeya dianthicola sp.nov.,Dickeya diefenbachiae sp．nov．and Dickeya zeae sp．nov[J].International Journal of Systematic and Evolutionary Microbiology,2005,55(4):1415-1427.
[14]黄立飞,罗忠霞,房伯平,等.我国甘薯新病害-茎腐病的研究初报[J].植物病理学报,2011,41(1):18-23.
[15]王玉瑤.台湾北部甘薯基腐病及干腐病之研究[D].台湾大学,2014.
[16]黄巧雯.由Phomopsis destruens引起之甘薯基腐病[J].台湾植物病理學會刊,2013,21(1):47-52.
[17]Clark C A,wilder-Ayers J A,Duarte V.Resistance of sweet potato to bacterial root and stem rot caused by Erwinia chrysanthemi[J].Plant Disease,1989,73:984-987．
[18]Duarte V,Clark C A.Presence on sweet potato through the growing season of Erwinia chrysanthemi,cause of stem and root rot[J].Plant Disease,1992,76:67-71.
[19]游加兴.叶用甘薯根茎腐病之研究[D].台湾大学,2008.
[20]黄巧雯,杨宏仁,林静宜,等.甘薯基腐病防治药剂筛选[J].台湾农业研究,2017,66(1):31-33.
[21]刘伟明,黄立飞,何贤彪,等.甘薯茎基部腐烂病防控技术研究[J].农学学报,2017,7(10):19-24.