Integrated Pest Management is a system which utilizes all suitable techniques and methods used as compatible a manner as possibly to maintain pest population at levels those causing economic injury. Basic features of IPM are- 1. utilizes two or more control techniques together in an integrated fashion. 2. to make maximum use of natural mortality
Effective pest control may be envisaged as reduction or maintenance of a pest population belong the damage threshold. The concept of some lower level of population below the damage threshold is referred to as the “Economic Threshold”.
Monophagous Pests– are those insects which are known to feed on only a single species of plants. Tryporyza incertulus is a monophagous pest and attacks only on paddy plants. Oligophagous Pests– are insects confine their feeding activity to plants belonging to one taxonomic group i.e., one family. A well known example is the cabbage butterfly.