Evaluation of Novel Insecticides against Tobacco Caterpillar Spodoptera litura and Castor Semilooper Achaea janata of Castor

Keerthana, B *

Department of Entomology, S. V. Agricultural College, Tirupati, 517 502, Andhra Pradesh, India.

Chalam, M. S. V

Department of Entomology, S. V. Agricultural College, Tirupati, 517 502, Andhra Pradesh, India.

Radhika

Department of Entomology, ARS, Anantapur, 515 701, Andhra Pradesh, India.

*Author to whom correspondence should be addressed.


Abstract

An experiment was conducted to evaluate the efficacy of ten insecticides viz., spinetoram 11.7 SC @ 0.5 ml l-1, cyantraniliprole 10.26 OD @ 1.2 ml l-1, chlorantraniliprole 18.5 SC @0.3 ml l-1, chlorfluazuron 5.4 EC @ 2.0 ml l-1, azadirachtin 1 EC @ 1 ml l-1, spinetoram 11.7 SC + azadirachtin 1 EC @ 0.5 ml l-1 + 1 ml l-1, cyantraniliprole 10.26 OD + azadirachtin 1 EC @ 1.2 ml l-1 + 1 ml l-1, chlorantraniliprole 18.5 SC + azadirachtin 1 EC @ 0.3 ml l-1 + 1 ml l-1, chlorfluazuron 5.4 EC + azadirachtin 1 EC @ 2.0 ml l-1 + 1 ml l-1 and quinalphos 25EC @ 2.0 ml l-1 along with an untreated control. Pooled efficacies of these treatments revealed that chlorantraniliprole 18.5 SC + azadirachtin 1 EC @ 0.3 ml l-1 + 1 ml l-1 was found to be the most effective treatment which exhibited highest efficacy against Spodoptera litura (75.26 per cent reduction over control) and Achaea janata (82.31 per cent ROC) followed by chlorantraniliprole 18.5 SC @ 0.3 ml l-1 which recorded 68.80 % and 76.15 % ROC respectively. The least per cent ROC was recorded in azadirachtin 1 EC (0.01 %) @ 1 ml l-1.

Keywords: Castor, Spodoptera litura, Achaea janata, Chlorantraniliprole 18.5 SC, Azadirachtin 1 EC


How to Cite

B, Keerthana, Chalam, M. S. V, and Radhika. 2024. “Evaluation of Novel Insecticides Against Tobacco Caterpillar Spodoptera Litura and Castor Semilooper Achaea Janata of Castor”. International Journal of Environment and Climate Change 14 (8):301-13. https://doi.org/10.9734/ijecc/2024/v14i84351.