Biopolymer Chitosan for the Management of Root Knot Nematode, Meloidogyne incognita and Root Pathogenic Fungus, Fusarium solani Infecting Tomato

Author: R. Mouniga*, B. Anita, A. Shanthi, A. Lakshmanan and G. Karthikeyan

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Abstract

The endoparasitic root knot nematode, Meloidogyne incognita and wilt pathogen, Fusarium solani cause severe yield loss in tomato. At present more emphasis is being given to develop environmentally safe pest and disease management technologies for sustainable crop production. Experiments were conducted to access the efficacy of chitosan at different concentrations against root knot nematode, M. incognita and root pathogenic fungus, Fusarium solani. Under lab conditions nematode egg hatching and juvenile mortality was recorded. In pot culture experiments, nematode population in roots, gall index and plant growth were recorded. The effect of chitosan on fungal growth was also assessed using poison food technique. Exposure of M. incognita egg mass to 5000 ppm and 10,000 ppm chitosan decreased the hatchability of eggs by 96.19% to 100% within 24 hrs time interval , compared to control. Similarly chitosan at 5000 ppm and 10,000 ppm concentration caused 100% infective juvenile mortality. Chi

Keywords

Chitosan, egg masses, Fusarium solani, infective juveniles, M. incognita and tomato.

Conclusion

The endoparasitic root knot nematode, Meloidogyne incognita and wilt pathogen, Fusarium solani cause severe yield loss in tomato. At present more emphasis is being given to develop environmentally safe pest and disease management technologies for sustainable crop production. Experiments were conducted to access the efficacy of chitosan at different concentrations against root knot nematode, M. incognita and root pathogenic fungus, Fusarium solani. Under lab conditions nematode egg hatching and juvenile mortality was recorded. In pot culture experiments, nematode population in roots, gall index and plant growth were recorded. The effect of chitosan on fungal growth was also assessed using poison food technique. Exposure of M. incognita egg mass to 5000 ppm and 10,000 ppm chitosan decreased the hatchability of eggs by 96.19% to 100% within 24 hrs time interval , compared to control. Similarly chitosan at 5000 ppm and 10,000 ppm concentration caused 100% infective juvenile mortality. Chi

References

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How to cite this article

Mouniga, R.; Anita, B.; Shanthi, A.; Lakshmanan, A. and Karthikeyan, G. (2022). Biopolymer Chitosan for the Management of Root Knot Nematode, Meloidogyne incognita and Root Pathogenic Fungus, Fusarium solani Infecting Tomato. Biological Forum – An Int