Field Efficacy of Andrographolide Based Formulations Against Cowpea Aphids, Aphis craccivora Koch (Homoptera: Aphididae), and their Safety to Predator, Coccinella transversalis Fab. (Coleoptera: Coccinellidae) in Cowpea

A field experiment was carried out to evaluate the efficacy of developed formulations of andrographolide (Formulation A and Formulation B) against cowpea aphids, Aphis craccivora and predatory coccinellids, Coccinella transversalis on cowpea during 2022- 2023 at the College of Agriculture, Vellayani. All concentrations (3, 5 and 7%) of both formulations A and B demonstrated minimal aphid populations, comparable to the chemical checks (thiamethoxam 25 WG and chlorantraniliprole 18.5% SC). Following the second spray, thiamethoxam 25 WG (90.44%) and chlorantraniliprole 18.5% SC (87.73%) exhibited the highest efficacy, followed by 7% concentration of both formulations A (86.97%) and B (85.87%). Additionally, both formulations A and B were found to be safer for predatory coccinellids, C. transversalis, compared to chemical checks, demonstrating their potential as environmentally friendly alternatives in pest management.

Neethu G. Raj*1, T. Santhosh Kumar1, N. R. Narayana2 and V. Vijayasree1 Click here to download file

Research Article | Published online : 22-Apr-2024