Growth regulatory and toxic effects of non-edible oil seed extracts and purified extracts against Helicoverpa armigera (Hubner)
نویسندگان
چکیده
Crude and purified extracts of non edible seed.of Pongamia glabra ( Karanja) were tested for their toxicity growth and development against the 2 instar larvae of the American bollworm, Helicoverpa armigera (Hubner) a serious pest of cotton. Larvae reared on synthetic diet at concentrations of 1 and 0.5% of P. glabra exhibited 100% mortality, whereas at sublethal concentrations of 0.05% and 0.01% of P.glabra, the survival of the larvae, were significantly reduced thereby affecting the normal adult emergence. The reduction in larval weights between the treatments was also highly significant.
منابع مشابه
Bioactivity of non-edible oil seed extracts and purified extracts against Helicoverpa armigera (Hubner).
Extracts and purified extracts of seeds of two plant species, Madhuca latifolia and Calophyllum inophyllum when evaluated against the 2nd instar larvae of Helicoverpa armigera reared on synthetic diet, exhibited high larval mortality, prolongation of developmental period, morphological deformities and highly significant reduction in adult emergence. The reduction in larval weights in the treatm...
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Various effects of methanolic extract of neem seed kernel on larvae of cotton boll worm, Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) were studied and compared with those of Neem Azal T/S and Neem Plus, two commercial formulations. The pest was collected from Gorgan (Golestan Province, Iran) and reared on a bean based artificial diet. The neem seed was collected from Bandar-Abbas (Hor...
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متن کاملاثرات بازدارندگی رشد، ضد‌تغذیه‌ای و کشندگی عصاره متانولی مغز دانه چریش روی کرم قوزه پنبه(Helicoverpa armigera (Hubnerدر مقایسه با دو ترکیب تجاری نیم‌آزال و نیم‌پلاس
Various effects of methanolic extract of neem seed kernel on larvae of cotton boll worm, Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) were studied and compared with those of Neem Azal T/S and Neem Plus, two commercial formulations. The pest was collected from Gorgan (Golestan Province, Iran) and reared on a bean based artificial diet. The neem seed was collected from Bandar-Abbas (Hor...
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