Incidence and Intensity of Root Disease Complex due to Nematode and Soilborne Fungal Pathogens in Mulberry (Morus alba L.)

  • Published : 2008.06.30

Abstract

A preliminary survey on the incidence and intensity of root disease complex (association of Meloidogyne incognita and root rot pathogens) was carried out in the sericultural areas of Karnataka. A total of 280 mulberry gardens were surveyed in 14 districts of Karnataka belonging to different types of soil (red sandy, red loamy and black cotton), farming systems (irrigated and rainfed), varieties (V-1, K-2, Local and S-13) and age of the plants (0-5, 5-10 and 10-15 years). It was observed that the association of M. incognita with Botryodiplodia theobromae and Fusarium solani causes the root disease complex in mulberry. Of the 280 gardens visited, 94 were infested with the disease complex and incidence was recorded as 33.6%. The higher intensity of root disease complex was observed when the root system had more than 100 galls/plant with infection of mixed population of B. theobromae and F. solani in sandy soil under irrigated farming. The 5-10 years old mulberry plantation with V-I variety was found to be most susceptible to root disease complex. Districts like Mysore, Kolar, Mandya, Tumkur, Chitradurga and Bangalore were observed as sensitive areas. Further, the wounds caused by M. incognita in mulberry roots favour the easy entry of root rot pathogens, which increased the severity of the disease very fast.

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References

  1. Agrios, G. N. (2000) Plant Pathology. Hartcourt Asia PTE. Ltd., New Delhi, India.
  2. Booth, C. (1971) The genus Fusarium. Common Wealth Mycological Institute, Surrey, U. K.
  3. Bhagyarathy, N., C. Siddappaji, M. A. Shankar, K. P. Chinnaswamy and S. Chavan (2000) Interaction of root knot nematode Meloidogyne incognita and fungus Rhizoctonia bataticola on mulberry plants. In: Moriculture in tropics. K. P. Chinnaswamy, R. Govindan, N. K. Krishna Prasada and D. N. R. Reddy (eds.), University of Agricultural Sciences, GKVK, Bangalore, India, pp.152-153.
  4. Chaitali, N. Singh, L. Singh and B. K. Goswami (2003) An incidence of disease complex on Balsam (Impatiens balsamina) caused by root knot nematode Meloidogyne incognita and wilt fungus Fusarium oxysporum. Plant Archives 3, 117- 119.
  5. Christie, J. R. (1949) Host parasite relationship of the root knot nematode Meloidogyne sp. III. The nature of resistance in plants to root knot. Proc. Helminthol. Soc. Wash., 16, 104- 108.
  6. Dandin, S. B., J. Jayaswal and K. Giridhar (2003) Hand Book of Sericulture Technologies. Central Silk Board, Bangalore, India, pp. 11-87.
  7. Dandin, S. B., J. Jayaswal and K. Giridhar (2003) Hand Book of Sericulture Technologies. Central Silk Board, Bangalore, India, pp. 11-87.
  8. Eisenback, J. D. (1985) Diagnostic characters useful in the identification of the four most common species of root knot nematode (Meloidogyne spp.) In: An Advanced Treatise on Meloidogyne Vol. I. Biology and Control. Sasser, J. N. and C. C. Carter (eds.) North Carolina State University Graphics, Raleigh, North Carolina, USA, pp. 95-112.
  9. Ellis, M. B. and J. P. Ellis (1985) Micro fungi on land Plants - An Identification Hand Book. Croom. Helm. Ltd., Kent, UK, p. 818.
  10. Govindaiah, S. B. Dandin and D. D. Sharma (1991) Pathogenicity and avoidable leaf yield loss due to Meloidogyne incognita in mulberry (Morus alba L.). Indian J. Nematol. 21, 52-57.
  11. Hartman, K. M. and J. N. Sasser (1985) Identification of Meloidogyne species on the basis of differential host test and perineal pattern morphology. In: An advanced treatise on Meloidogyne vol II - Methodology. Barker, K. R., C. C. Carter and J. N. Sasser (eds.). IPM, North Carolina State University, Raleigh, USA, pp. 69-77.
  12. Haseeb, A. and P. K. Shukla (2005) Wilt disease complex of pigeonpea and its management. In: Plant Diseases Biocontrol Management, Nehra, S. (ed.), Aavishkar Publishers, Distributors, Jaipur, India, pp. 85-96.
  13. Khan, M.W. (1993) In: Nematode interactions. Chapman & Hall. Madras, India. pp. 1-365.
  14. Naik, V. N. and D. D. Sharma (2003) Interaction of root knot nematode with soilborne fungal and bacterial pathogens and their impact on disease severity. In: Annual report (2003-04). Central Sericultural Research and Training Institute, Mysore, India, pp. 40.
  15. Pathak, K. N. and N. Keshari (2004) Interaction of Meloidogyne incognita with Fusarium oxysporum f. conglutinans on cauliflower. Indian J. Nematol. 34, 85-87.
  16. Rao, V. K. and K. Krishnappa (1996 a) Ecology of soilborne plant pathogens with special reference to Meloidogyne and Fusarium associated with chickpea wilt in Karnataka. Indian J. Mycol. Pl. Pathol. 26, 64-68.
  17. Rao, V. K. and K. Krishnappa (1996 b) Interaction of Fusarium oxysporum f. sp. ciceri with Meloidogyne incognita on chickpea in two soil types. Indian Phyto Path. 49, 142-147.
  18. Roongta, A. and B. Parker (2005) Enchanting Indian Silk. Central Silk Board, Bangalore, India, pp. 97-99.
  19. Sharma, D. D., V. N. Naik, N. B. Chowdary and V. R. Mala, (2003) Soilborne diseases of mulberry and their management - A review. Int. J. Indust. Entomol. 7, 93-106.
  20. Sharma, D. D. and V. P. Gupta (2005 a) Soilborne diseases of mulberry and their management. In: A text Book on Mulberry Crop Protection. Govindaiah, V. P. Gupta, D. D. Sharma, S. Rajadurai, and V. N. Naik (eds.), Central Silk Board (Ministry of Textiles-Government of India) Madivala, Bangalore, India, pp. 195-228.
  21. Sharma, D. D. and V. P. Gupta (2005 b) Methods and calculation of disease scoring in mulberry. In: A text Book on Mulberry Crop Protection. Govindaiah, V. P. Gupta, D. D. Sharma, S. Rajadurai, and V. N. Naik (eds.), Central Silk Board (Ministry of Textiles-Government of India) Madivala, Bangalore, India, pp. 23-36.
  22. Siddiqui, A. U., A. Parihar and B. S. Yadav (2005) Nematode interactions with other micro-organisms. In: Plant, microbes & biotechnology. Nehra, S. (ed.), Aavishkar publishers, Distributors, Jaipur, India, pp. 227-245.
  23. Singh, S. and B. K. Goswami (2001) Interrelationships between Meloidogyne incognita and Fusarium oxysporum on susceptible and resistant cultivars of cowpea. Indian J. Nematol. 31, 139-142.
  24. Southey, J. P. (1986) Laboratory methods of Agriculture Fish Food London. Bulletin- 2, pp. 202.
  25. Sutton, B. C. (1980) The Celomycetes - fungi imperfecti with Pycinidia, acervuli and stoma. Common Wealth Mycological Institute, Surrey, UK, pp. 696.
  26. Waksman, S. A. (1927) Principles of soil Microbiology. The Williams and Wilkims Co., Baltimore, USA.