Vol. 7, Special Issue 6 (2019)
Management of root-knot nematodes, Meloidogyne incognita on chillies using botanicals
Author(s): M Shanmuga Priya
Abstract: Investigations were carried out to study the nematicidal potential of botanicals against Root-Knot Nematode, Meloidogyne incognita in Chilli. The aqueous extract of Azadirachta indica had the highest level of inhibition on hatching of nematode eggs (60.50 and 71.5% after 72 hr and 120 hr respectively). Significant increase in egg hatching inhibition as compared to A.indica was also observed at 120 hr interval (66.5 and 54.25 %) with Ocimum sanctum and Calotropis gigantea respectively. In control 100 % of egg hatching was found upto 48hrs.The number of fruits was higher (4.75) in carbofuran treated plant followed by plants with A.indica (4.10), O. sanctum(4.0) and C.gigantea (3.75). The highest reduction of 81.87 per cent in the population of infective juveniles was recorded in the treatment of carbofuran followed by A. indica (78.94), O. sanctum (74.73), and C. gigantea (74.26). The gall index ranged from 2 to 3 in treated plants whereas untreated plants recorded 4 as gall index with more than 33 galls per plant.
Pages: 463-466 | 401 Views 64 Downloads
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How to cite this article:
M Shanmuga Priya. Management of root-knot nematodes, Meloidogyne incognita on chillies using botanicals. International Journal of Chemical Studies. 2019; 7(6): 463-466.
