Vol. 8, Special Issue 2, Part C (2024)

Abstract: Sweet basil is often known as "King of the herbs" due to its many uses in the food, pharmaceutical, cosmetic, and medical sectors. A field experiment was conducted in the Herbal Garden, Hi-Tech Unit of Dr. Rajendra Prasad Central Agricultural University, Pusa (Samastipur), Bihar in 2021 to evaluate comparative performance and economic efficacy of various plant-based insecticides against Ocimum leaf folder and their impact on sweet basil yield performance. This was done in light of the effects of Ocimum leaf folder on yield reduction of sweet basil, health hazards due to the use of chemical pesticides, and the high cost of chemical insecticides. The highest seed yield obtained from the treatment Azadirachtin 1.5% @ 0.75 litre /ha (129) followed by Neem oil 2% @ 10 litre/ha. (121 Kg/ha) after that NSKE 5% @ 25 kg/ha (118 Kg/ha) while, the highest ratio was obtained from the treatment Azadirachtin1500 ppm @ 0.7.5 litre/ha (1: 6.83) followed by NSKE 5% @ 25 kg/ha (1:6.06) after that neem oil 2% @ 10 litre/ha. (1:5.49).