Effect of foliar application of systemic pesticides on the development of Meloidogyne graminicola in rice

The growth and development of Meloidogyne graminicola in rice roots was studied following foliar sprays of cxamyl, carbofuran, phorate and chlorpyriphos at 125, 250, 500 and 1000 ppm, 10 days after larval inoculations to rice cultivar “IR-8”. Oxamyl was superior in reducing the number of endoparasites followed by phorate. In treated plants there was delayed development of the nematode. Males increased in higher doses of oxamyl and carbofuran. The studies indicate that oxamyl, phorate or carbofuran can be effectively used as foHar sprays at 500 to 1000 ppm in the therapy of rice root-knot nematode.