How to cite this article:
Pavaraj, M., Bakavathiappan, Ga.and Baskaran, S. 2012. Evaluation ofsome plant extracts for their nematicidal properties against root-knotnematode, Meloidogyne incognita. Journal of Biopesticides, 5(0): 106-110.
Nematicidalactivities of extracts from plants were assayed against Meloidogyneincognita. Ten different plants were collected from in and around Sivakasiarea. The plants were shade dried and powdered. The plant extracts were preparedby soxhlet apparatus using methanol as a solvent. Methanol extracts of tenplants were screened for egg hatchability and nematicidal activity againstsecond stage juveniles of M. incognita in the laboratory. Thenematode egg and juveniles exposed 24, 48 and 72 hrs in different concentrations(10 ppm to 100 ppm) of plant extracts. The plant extracts of Couroupita quianensisand Nepeta cataria exhibited highly promising mortality 73-86% after72 hrs exposure. There was a gradual decrease in egg hatching with increase inextract concentration. Nepeta cataria, Couroupita quianensis and Pentanemaindicum were found to be most effective in reducing egg hatching. Larvalhatching and nematode mortality were strongly influenced by concentration of extract,plant species and duration of exposure.
How to cite this article:
Pavaraj, M., Bakavathiappan, Ga.and Baskaran, S. 2012. Evaluation ofsome plant extracts for their nematicidal properties against root-knotnematode, Meloidogyne incognita. Journal of Biopesticides, 5(0): 106-110.
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