• Elanchezhian.K
• J. Gokulakrishnan
• K. Krishnappa
• K. Elumalai
• Balu Selvakumar

ABSTRACT: Agricultural insect pests and diseases are important warning influences of agricultural production across the world and amongst the insect pests, the Spodoptera litura, Helicoverpa armigea and Achaea janata are important polyphagous pests and widely distributed throughout Asia. It has a wide range of host, feeding on more than 100 plants and 40 species are known from India. They are the most serious field pests in many cultivated and non-cultivated crops and they developed resistance against many synthetic pesticides. The impact of Tinospora different extracts against the selected lepidopteran generalist herbivorous insect pests. The plant extracts have been evaluated for their ovicidal and larvicidal activity of 500ppm concentration of hexane, diethyl ether, chloromethane, ethyl acetate and methanol were showed provides the ovicidal activity were 86.12, 88.60, 91.95, 94.93, 96.48 and 88.72, 91.25, 93.75, 95.99, 98.35 and 92.40, 94.88, 95.32, 99.45 and 99.67 S. litura, H. armigera and A. janata respectively. The larvicidal activity of different extracts of T. malabarica hexane, diethyl ether, chloromethane, ethyl acetate and methanol ware tested against fourth instar larvae of S. litura LC50 and LC90 values were 268.25, 262.16, 254.28, 244.64, 219.16 and 485.16, 473.76, 460.66, 457.79 and 421.27ppm respectively. The larvicidal activity of different extracts of T. malabarica hexane, diethyl ether, chloromethane, ethyl acetate and methanol ware tested against fourth instar larvae of H. armigera LC50 and LC90 values were 274.28, 260.52, 251.50, 235.62, 213.91 and 489.97, 467.45, 456.50, 451.46 and 413.37ppm respectively.

Spodoptera litura, Helicoverpa armigera, Achaea janata, Tinospora malabarica, ovicidal activity, larvicidal activity

"Botanical extracts of Tinospora malabarica Indian medicinal plant against Spodoptera litura, Helicoverpa armigera and Achaea janata (Lepidoptera:Noctuidae)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 3, page no.140-153, March-2019, Available :http://www.jetir.org/papers/JETIR1902919.pdf

"Botanical extracts of Tinospora malabarica Indian medicinal plant against Spodoptera litura, Helicoverpa armigera and Achaea janata (Lepidoptera:Noctuidae)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 3, page no. pp140-153, March-2019, Available at : http://www.jetir.org/papers/JETIR1902919.pdf