Aquatic Insect Pests: Control Strategies

Aquatic insects play a crucial role in maintaining the balance of healthy aquatic ecosystems.However, in nursery ponds, especially after rainfall, many aquatic insects prey on carp spawn and fry, impacting fish populations. In freshwater ecosystems, insects are the most diverse group, with species such as dragonfly nymphs, Ranatra (water stick), Gerris (water spider), Corixa, Cybister (diving beetle), Notonecta (back swimmer) and Belostoma (giant water bug) posing a threat. These insects are typically caught using fine mesh nets and controlled using substances like kerosene and diesel.