19/02/2026
Dr. Asim Abbasi (Research Associate- Entomology, Domain 5) delivered an insightful session discussing the role of silicon accumulation in cotton and its cascading effects on whitefly biology and beneficial predators through tritrophic interactions. The talk highlighted sustainable pest management strategies by integrating plant nutrition with biological control. His topic: “Silicon accumulation in cotton and its tritrophic effects on whitefly and Chrysoperla carnea” highlighted that, Silicon accumulation in cotton enhances plant defense by strengthening cell walls and activating biochemical resistance mechanisms. Silicon-treated plants reduce the performance of whitefly by impairing feeding efficiency, survival, and reproduction. At the same time, silicon-mediated changes in plant chemistry and herbivore quality can positively influence the third trophic level by improving the predatory efficiency and fitness of Chrysoperla carnea feeding on whitefly. Overall, silicon induces a beneficial tritrophic effect, suppressing pest populations while supporting natural enemies, and thus contributes to sustainable pest management in cotton. Silicon nutrition is increasingly recognized for enhancing plant defense mechanisms. By strengthening plant tissues and influencing herbivore–natural enemy interactions, silicon can reduce pest fecundity while supporting biological control agents.