Entomologia Generalis (2012) 34, 75-90

Maha Singh Jaglan, K.S. Khokhar, Sucheta Khokhar and Ram Singh (2012)
Evaluation of Melia azedarach extracts against American bollworm, Helicoverpa armigera (Lepidoptera: Noctuidae)
Entomologia Generalis 34 (1-2), 75-90
Abstract: Melia azedarach (Linnaeus 1753) drupes and green leaves extracts (methanol and chloroform: methanol) were evaluated against American bollworm, Helicoverpa armigera (Hubner 1806). Various concentrations of extracts were used to treat natural foods, viz leaves and pods/bolls of chickpea, pigeonpea, and cotton. Treated foods were offered to early stage (neonate) and advanced stage (grown up) larvae of H. armigera for 48 h, and then, untreated food was offered for the rest of life. Chloroform: methanol (9: 1) extracts of M. azedarach drupes and leaves showed better insecticidal properties than methanol extracts. However, M. azedarach drupes extract in chloroform: methanol (9: 1) was the most promising in causing adverse morphogenic effect on various biological parameters of H. armigera. Early stage larvae were more sensitive to the exposure of M. azedarach extracts than advanced stage larvae.
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Link to article at publishers website
Database assignments for author(s): Ram Singh

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Helicoverpa armigera