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1993•Indian journal of plant protectionOpen access

Control of Helicoverpa armigera Rb. Infesting Chickpea: Field Efficacy of Neem Products and Insect Growth Regulators

S.N. Sinha

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Abstract

Field efficacy of dinubenzuron, neem oil and neem seed kernel extract (NSKE) was studied against Hellcoverpa armigera Rb. infesting chickpea during 1986.87 and 1988–89 seasons. At a level of 20.5% (1986–87) and 12.5% (1988–89) overall infestation, dinubenzuron (0.05%), neem oil and NSKE (5.0%) sprayed at an interval of 10 days gave a two fold reduction in pod borer Infestation over untreated control. All treatments resulted in significantly higher seed yield in both the years. Increase in seed yield was 39 and 47% with dinubenzuron (0.05%) and endosulfan (0.07%) over the untreated control, respectively.

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What this paper is about

Field efficacy of dinubenzuron, neem oil and neem seed kernel extract (NSKE) was studied against Hellcoverpa armigera Rb. infesting chickpea during 1986.87 and 1988–89 seasons. At a level of 20.5% (1986–87) and 12.5% (1988–89) overall infestation, dinubenzuron (0.05%), neem oil and NSKE (5.0%) sprayed at an interval of 10 days gave a two fold reduction in pod borer Infestation over untreated control. All treatments resulted in significantly higher seed yield in both the years. Increase in seed yield was 39 and 47% with dinubenzuron (0.05%) and endosulfan (0.07%) over the untreated control, respectively.

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Available abstract

Field efficacy of dinubenzuron, neem oil and neem seed kernel extract (NSKE) was studied against Hellcoverpa armigera Rb. infesting chickpea during 1986.87 and 1988–89 seasons. At a level of 20.5% (1986–87) and 12.5% (1988–89) overall infestation, dinubenzuron (0.05%), neem oil and NSKE (5.0%) sprayed at an interval of 10 days gave a two fold reduction in pod borer Infestation over untreated control. All treatments resulted in significantly higher seed yield in both the years. Increase in seed yield was 39 and 47% with dinubenzuron (0.05%) and endosulfan (0.07%) over the untreated control, respectively.

Key concepts: Helicoverpa armigera, Neem oil, Infestation, Forensic science, Toxicology, Endosulfan, Yield (engineering), Point of delivery

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Control of Helicoverpa armigera Rb. Infesting Chickpea: Field Efficacy of Neem Products and Insect Growth Regulators — Research Paper | ScholarLens