Abstract
The population of insect pest complex on chilli and its damage upon the plant was monitored upon treatment with formulated Beauveria bassiania (0.5 ml Lˉ¹), tobacco leaf extract (5 ml Lˉ¹), neem oil (5 ml Lˉ¹) and ginger garlic paste (50 g Lˉ¹) by giving two sprays. The experiment was conducted at the experimental farm, New Colony, Ward 7, Chumukedima, Nagaland beginning from February 2021 to May 2021. The experiment was laid out in Randomized Block Design with four treatments and one control. A total of nine insect pests under seven orders and ten families were observed. The incidence of aphids, whitefly, thrips and fruit borer were major pests while others were non-significant. The results revealed that all biopesticides under study were superior and there was significant reduction over control against the insect pest complex of chilli. The most effective control was recorded in neem oil against aphids, whitefly, thrips and fruit borer with mean per cent reduction of 56.08%, 61.76%, 53.09% and 57.37%, respectively while the least was recorded in the treatment done with tobacco leaf extract.
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