Management of nematode induced wilt disease complex in Capsicum using Pseudomonas fluorescens and Paecilomyces lilacinus


  • M. S. Rao
  • D. S. Sowmya
  • M. K. Chaya
  • R. Manoj Kumar
  • K. Rathnamma
  • J. Gavaskar
  • K. Priti
  • N. Ramachandran


Experiments were conducted to standardize a method for the management of nematode induced disease complex in bell pepper (Capsicum annuum L.), caused by the interaction of the nematode Meloidogyne incognita with the bacterium Ralstonia solanacearum, using the combination formulation of Pseudomonas fluorescens and Paecilomyces lilacinus. The use of this formulation as seed treatment and subsequent application in the nursery and in the field, as a method for the management of this disease complex, was standardized. Ten grams of this formulation was used for the seed (1 kg) treatment, 5 g for treating 1 kg of substrate (coco peat) and 5 kg for the enrichment of a vermi-compost (500 kg) which was applied to the field before transplanting bell pepper seedlings. This method reduced the population of M. incognita and the disease incidence. The plant growth components (shoot and root length), nematode egg parasitization and crop yield were also significantly increased. The colonization of the roots by P. fluorescens did not affect that by P. lilacinus.