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Effect of Some Plant Extracts on the Hatch of Meloidogyne incognita Eggs

Author(s): Anuja Bharadwaj | Satyawati Sharma

Journal: International Journal of Botany
ISSN 1811-9700

Volume: 3;
Issue: 3;
Start page: 312;
Date: 2007;
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Keywords: Biocontrol | biopesticides | Meloidogyne incognita | plant extracts | root-knot nematode

Root-knot nematodes are one of the major limiting factors affecting plant growth and yield. Currently, synthetic pesticides are principle means used to control the nematodes but natural products may provide a safer alternative. Nematicidal compounds have been identified in a wide diversity of plant species. A study was conducted to evaluate potential of aqueous extracts from Azadirachta indica, Carica papaya, Ocimum sanctum, Ricinus communis and Tagetes patula, in controlling the hatch of eggs of the root-knot nematode, Meloidogyne incognita. Five concentrations of water soluble extracts from the five plant species were filtered, added to petri dishes and infested with eggs of M. incognita. The best results were obtained with O. sanctum, with no hatching within 48 h vs. 34.8% in the control.

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