Check damage by gastropod pests in vegetable fields & nurseries

摘要

Snails & slugs are important because they cause damage to field crops, orchards and forest trees in moist regions or in rainy months by their rasping feeding. They cause extensive damange in vegetable fields and green house ornamental pants. The importance of terrestrial gastropods as crop pests has greatly increased over the past few years. They are relatively large in comparison with most insect pests and they are only intermittently active in the crop or on the soil surface especially in damp andshady conditions. Exposed surface of these pests is protected by a disposable layer of aqueous mucus and shelled species have additional protection. Gastropod pests are of two types:- 1. Snails-with external shell; 2. Slugs- without external shell.