Journal of Food, Agriculture and Environment

In-vitro assessment of antinemic activity of some plants extracts against root-knot nematode Meloidogyne incognita

Author(s):

Mohammad Shariq, Mohd Asif, Faryad Khan, Taruba Ansari, Amir Khan, Moh Tariq, Mansoor Ahmad Siddiqui

Recieved Date: 2021-01-11, Accepted Date: 2021-03-26

Abstract:

The use of chemical nematicides has been prohibited in most of the countries due to its high cost and lethality to the environment as well as human health. In view of the recently increased interest in botanical nematicides as an alternative to chemical nematicides, the present work was conducted to assess the antinemic activity of aqueous extract of different parts of six antagonistic plant species on egg hatching and second-stage juveniles (J2s) mortality of Meloidogyne incognita in vitro. J2s were exposed to different concentrations (viz. 1000, 2000, 3000, 4000 and 5000 ppm) of plant extracts for 24, 48, and 72 h while eggs for 7 days. All the plant extracts had positive and significant impacts on egg hatching inhibition and J2s mortality in a dose-dependent manner. The 5000 ppm concentration showed the highest toxicity against egg hatching and survival of J2s in comparison to other concentrations (1000, 2000, 3000 and 4000 ppm). Egg hatching inhibition caused by Alternanthera pungens extract was found highest at 5000 ppm (87.6%) after 7 days followed by Dicliptera paniculata (85.5%) while least was observed in Tridax procumbens extract at 1000 ppm (29.8%). Likewise, J2s mortality gradually increased with increase in extract concentrations and exposure period. J2s mortality was significantly highest (89.3%) in Alternanthera pungens extract at 5000 ppm (LC50 = 2041.74 ppm) after 72 h followed by Dicliptera paniculata (84.1%) while least (5.3%) in Tridax procumbens extract at 1000 ppm (LC50 = 5011.87 ppm) after 24 h of exposure duration. The findings suggest that the extracts of tested plants had natural nematicides that showed antinemic activity against M. incognita and could be an alternative of chemical nematicides.

Keywords:

Antagonistic, botanical nematicides, natural nematicides, mortality, egg hatching

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Journal: Journal of Food, Agriculture and Environment
Year: 2021
Volume: 19
Issue: 2
Category: Agriculture
Pages: 58-63

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