5.MOLLUSCICIDAL ACTIVITY OF SELECTED NEPALESE PLANTS AND MUSHROOM USED IN FOLK MEDICINE by DEEGENDRA KHADKA AND SHANDESH BHATTARAI
Farmers residing in the Eastern and Mid-hill region of Nepal are confronting with snails infestation. Annually, Snails have been damaging remarkable amount of several important crops in Nepal. Although numerous synthetic molluscicides are available in the global market but Nepalese farmers are unable to buy, use and handle such molluscicides due to its high price and poor safety and precaution knowledge. It has been proved that organic molluscicides are eco-friendly, cheap and easy to handle. In this study, a total of seven extracts were prepared from medicinal and poisonous plants and mushroom namely Kalanchoe pinnata, Urtica dioica, Ageratum conyzoides, Polygonum flaccidum, Argemone mexicane, Clerodendron fortunatum and Scleroderma citrinum, and were tested against three snails species (Achatina fulica, Bensonies nepalensis and Cyclophorous spp.). Among seven extracts tested, extract from U. dioica and P. flaccidum showed promising result at 500 ppm concentration.
KEY WORDS: Bio-control, Mollusk, Organic, Polygonum flaccidum, Toxicity, Urtica dioica.