Antilarvicidal Potential of Andrographis paniculata Extracts Against Plutella xylostella

The plant extracts are beneficial to both human health and the environment. This research explores the impact of plant extracts against anti larvicidal potential of Diamond Back Moth (DBM). This study focuses on the collecting, rearing, and observation of the DBM (Plutella xylostella), with a particular focus on the influence of Andrographis paniculata (Nilavembu) plant extract on DBM pupal-adult metamorphosis. This study entailed collecting adult DBMs and their larvae from cauliflower plants in the Yercaud hills, followed by laboratory rearing under controlled conditions. The soxhlet extraction technique was used to produce a crude plant extract from A. paniculata. This plant extract was applied topically to newly hatched larvae, while control larvae were given a carrier solvent (acetone) treatment. The research purpose is to assess whether the normal pupal-to-adult transition of DBM was hindered by the application of A. paniculata plant extract. The emerging adults treated with the plant extract showed substantial variations in morphology and larval mortality when compared to the control group. In addition, the DBM's life cycle, including the stages of eggs, larvae, pupae, and adults, was thoroughly investigated. The study sheds light on the adverse effects of A.paniculata aqueous extract on the development of P. xylostella and proposes potential uses for pest control tactics.