College of Agriculture, Central Agricultural University, Imphal-795001, Manipur.
Investigations were carried out to evaluate the efficacy of ethanolic extracts of seven indigenous plant materials viz., Melothira perpusila, Elsholtria pofystachya, Cassia occidentalis, Ageratum conyzoides, Melia azedarach, Paederia foetida and Jatropha sp. against aphid Myzus persicae Sulz. infesting cabbage during 1993–94. The ethanolic extract of Jatropha sp. at 1.0 per cent concentraion appeared to be comparatively more toxic against the test insect in both the laboratory and field trials followed by Paedaia foetida.
