Impact of Pesticides on Beneficial Insects in Various Agroecosystem: A Review
Sanjoy Samanta *
Department of Entomology, Uttar Banga Krishi Vishwavidyalaya, Coochbehar, West Bengal, 736165, India.
Atanu Maji
Department of Entomology, Uttar Banga Krishi Vishwavidyalaya, Coochbehar, West Bengal, 736165, India.
Bipadtaran Sutradhar
Department of Entomology, Bidhan Chandra Krishi Vishwavidyalaya, Mohanpur, Nadia, West Bengal, 741252, India.
Santanu Banerjee
Chhatrapati Shahu Ji Maharaj University, Kanpur, Uttar Pradesh, India.
Vaibhav B. Shelar
Biological Nitrogen Fixation Laboratory, College of Agriculture, Pune, Maharashtra, 411005, India.
Pravin B. Khaire
Department of Plant Pathology and Agricultural Microbiology, Rahuri, Maharashtra, 413722, India.
Sandhya V. Yadav
Department of Botany, Fergusson College (Autonomous), Pune, Maharashtra, 411004, India.
Govardhan D. Bansode
Department of Botany, Fergusson College (Autonomous), Pune, Maharashtra, 411004, India.
*Author to whom correspondence should be addressed.
Abstract
Beneficial insects play a vital role in natural pest control and pollination in agricultural crops. The use of synthetic pesticides in agricultural areas is harmful to both natural enemies and pollinators. Pesticides impair the survival of a variety of life cycle stages, limit reproductive capability, alter host fitness for parasitising or predation, reduce parasitoids' emergence from sprayed host eggs, and cause direct death. When natural enemies are decreased, pest population dynamics, such as resurgence and secondary pest eruption, may suffer even more devastating repercussions. Pollinator decline decreases agricultural yield. This study intends to investigate the side effects of synthetic and botanical pesticides on beneficial insects in order to provide a foundation for future research into the detrimental effects of synthetic and botanical pesticides on these insects. This information will aid in optimising pesticide use in integrated pest management programmes by implementing more sustainable and environment friendly methods such as the use of correct doses and selective insecticides in agricultural areas.
Keywords: Beneficial insects, pollinators, predators, parasitoids, agroecosystem, pesticides, harmful effects