ISSN : 0975-3710
EISSN : 0975-9107
S. VANITHA1, A. SHANTHI2*, B. ANITA3, P. KALAIARASAN4, P. MARIMUTHU5, M. MUTHAMILAN6
1Department of Nematology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu 641003, India
2Department of Nematology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu 641003, India
3Open and Distance Learning, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu 641003, India
4Department of Nematology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu 641003, India
5Department of Agricultural Microbiology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu 641003, India
6Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu 641003, India
* Corresponding Author : shanthigovardhan@yahoo.co.in
Received : 02-04-2019 Accepted : 12-04-2019 Published : 15-04-2019
Volume : 11 Issue : 7 Pages : 8260 - 8263
Int J Agr Sci 11.7 (2019):8260-8263
Keywords : Survey, Potato Cyst Nematode (PCN), G. Rostochiensis, G, Pallida, Cyst Population
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Horticultural Research Station, Udhagamandalam, Kodaikanal and Department of Nematology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu 641003, India
Author Contribution : All authors equally contributed
The random survey was conducted during autumn season in the Nilgiris and Dindigul districts of Tamil Nadu to assess the occurrence and distribution of potato cyst nematodes, Globodera rostochiensis and G. pallida on potato. Four blocks of the Nilgiris district, Udhagamandalam, Kotagiri, Coonoor and Gudalur comprised of 44 revenue villages were surveyed. In Dindigul district 15 villages at Kodaikanal block were selected for survey. The total of 1009 soil samples were collected from potato cultivar Kufri Jyoti infested by potato cyst nematodes. The survey results showed that, out of 59 villages the severe infestation of cyst population was observed in Doddabetta (734 cysts/200cc) followed by Sholur (646 cysts/200cc) and Solada (624 cysts/200cc). The cyst population ranged from 0 -734 cysts /200 cc of soil in the Nilgiris district and 0- 645cysts/ 200 cc of soil in Dindigul district. Hence, the results showed that 88.06 and 86.66 % of potato fields in the Nilgiris and Kodaikanal hills were infested with potato cyst nematodes and no occurrence was recorded at Poondi in Kodaikanal block and Kunthasapai and Pudiyangiiin Udhagamandalam and Kotagiri block respectively.
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