• Dr. Deepali lall
• Dr. Sudha Summarwar

India is basically an agriculture based country and more then 80% populations depends on it India is basically an agriculture based country and more than 80% of Indian population depends on it. Agricultural productivity influences the Indian economy. Insect pests are known to cause significant damage to crops. The pesticide of plant origin is having nontoxic biodegradable and environmental friendly qualities. The frequent spraying of toxic chemicals developing resistance to the pesticide. Leaf powder of the plants like Argimone maxicana and Calotropis procera is prepared, Different doses of these plant extracts is given to the fourth instar stages of Helicoverpa armigera through feeding methods, To find their efficacy the experimental findings will be put under analysis using various perameters. The effect on midgut is also studied

Distillation plant, Acetone, Alcohol, Piptte, Castor leaves, Grams pods, larvae of Helicoverpa armigera, plant extract, Vails, Jars,Cotton.

"Efficacy of some plant extracts against larvae of American bollworm Helicoverpa armigera (Nouctuidae: Lepidoptera) special reference to the effect on peritrophic membrane) ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 4, page no.41-43, April-2018, Available :http://www.jetir.org/papers/JETIR1804229.pdf

"Efficacy of some plant extracts against larvae of American bollworm Helicoverpa armigera (Nouctuidae: Lepidoptera) special reference to the effect on peritrophic membrane) ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 4, page no. pp41-43, April-2018, Available at : http://www.jetir.org/papers/JETIR1804229.pdf