Insect Pests of Vegetable, Tuber and Spice Crops

Lecture - 1

Learning Objectives: All insects are not harmful, those harmful are not harmful unless their population density crosses certain limit (ETL). (Economic importance of insects lies more in their harmful effects than beneficial effects. Higher the status of an insect as pest, more important that insect is. Hence, the main objective of this lecture will be to teach the students regarding their beneficial and harmful effects.