ResearchBib Share Your Research, Maximize Your Social Impacts
Sign for Notice Everyday Sign up >> Login

IN VITRO Evaluation Of Nematicidal Properties Of Neem Products On Egg Hatching Of A Phytonematode Heterodera Cajani.

Journal: International Journal of Scientific & Technology Research (Vol.2, No. 4)

Publication Date:

Authors : ;

Page : 51-54

Keywords : ;

Source : Downloadexternal Find it from : Google Scholarexternal

Abstract

Abstract - In vitro efficacy of five neem formulation was tested against a phytoparasitic nematode Heterodera cajani. The neem products viz. neem leaf neembarknimboli Achook and Nimin were tested against egg hatching of Heterodera cajani. The formulation was made in water and its various dilution was prepared i. e. S30S45S60 and S90. where S stands for stock solution. The maximum reduction 97. 6 was observed at S30 concentration of Nimin followed by Achook Neem leaf Nimboli and Neem bark treatments respectively at the same concentration. Maximum hatching of eggs or minimum inhibition in hatching was observed in S90 neem bark23. All the neem products show promising result in reducing hatching of Heterodera cajani larvae. Cowpea Vigna unguiculataL. or Chawla is an important kharif crop of Rajasthan state due to its ability to grow and yield at relatively low level of fertility. Cow pea has relatively high lysine content 470-497mgg N which makes it an excellent improver of protein quality over cereal grainsBressani1985. Along with food and feed value it also helps in improving soil fertility by fixing atmospheric nitrogen in the soil with the help of root nodules inhabited by nitrogen fixing Rhizobium spp. Rachie 1985. During last twenty years the plant family meliaceae and especially its members Azadirachta indica and Melia was identified as one of the most promising member and source of compounds with pest control properties. Mishra and Prasad 1973found water soluble fractions of neemcake water extract to be toxic to Meloidogyne incognita. Akthar and Alam1993 used Nimin and Achook for seed coating for the control of various plant parasitic nematodes. Mojumdar and Mishra 1994 found that seed treatment of chickpea with neem seed kernel neem seed coat achook neemark and nimbicidine were effective in reducing 2nd stage juvenile penetration of Meloidogyne incognita. Basu and Mojumdar 1998 reported that the mortality percentage of2nd stage juvenile of Meloidogyne incognita was directly correlated with the concentration of neem based products and the period of exposure. Singh and Singh 1994 reported highly reduction in hatching of eggs emergence of larvae from cystimmobilization and mortality of Heterodera cajani juveniles in cowpea plants treated with aqueous neem cake extracts. Pandey and Trivedi 2000reported significant reduction in Heterodera cajani population in cowpea plants treated with Nimin and Achook along with neem leaf powder Neem bark and nimboli. Sharma et al 2000 evaluated neemark and nimbicidine for management of root-knot nematode in okra. Sivkumar and Gunasekaran 2011 reported the nematicidal activity of three botanical formulation based on neem oil and Pongamia oil against Meloidogyne incognita infecting tomato chilli and brinjal. Among three botanical formulation the formulation no 60 EC was significantly superior and reduced the nematode population to 48. 6. Now a days because the use of pesticides is subsidized in many countries due to pollution problems associated with the use of dangerous chemicals the environmental advantage of using safe material such as neem for pest control and different parts of neem viz. neem leaf neem bark neem seed and neem kernel as well as neem based pesticides is gaining importance in the present decade. In the present study the in vitro efficacy of five types of neem products viz. neem leaf neembarknimboli Achook and Nimin were tested against egg hatching of Heterodera cajani.

Last modified: 2013-08-10 23:33:59