Efficacy of Emamectin benzoate 5WG against podborer complex in redgram
Study of bioefficacy, acute toxicity and persistence of Emamectin benzoate 5 WG against lepidopteran insects in redgram
(Sprache: Englisch)
Redgram is attacked by more than 250 species of insects, of which Helicoverpa armigera, Maruca vitrata and Etiella zinckenella are the most important polyphagous pests in both tropics and sub-tropics because of their extensive host range, destructiveness...
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Redgram is attacked by more than 250 species of insects, of which Helicoverpa armigera, Maruca vitrata and Etiella zinckenella are the most important polyphagous pests in both tropics and sub-tropics because of their extensive host range, destructiveness and distribution on cowpea, mungbean, urdbean and field bean. Emamectin benzoate which is a semi synthetic derivative of avermectin produced as fermentation metabolites of soil actinomycetes, Streptomyces avermitilis and has both stomach and contact action. Three rounds of spraying of Emamectin benzoate 5 WG @ 125 g/ha, at 10 days interval starting from 120 days after dibbling was effective in reducing the larval population of H. armigera (5.81 nos./10 plants; 84.26% and 4.93 nos./10 plants; 85.67%), M. vitrata (4.52 nos./10 plants; 85.00 and 4.30 nos./10 plants; 86.23%) and E. zinckenella (4.26 nos./10 plants; 85.71 and 4.33 nos./10 plants; 85.47%) as against untreated control (38.11 and 36.85 nos./10 plants; 30.85 and 33.74 nos./10 plants and 30.22 and 31.11 nos./10 plants) in the first and second season field experiments. It does not have harmful effect on parasitoids and predators in redgram eco-system.
Bibliographische Angaben
- Autoren: K. Thangavel , R. K. Murali Baskaran
- 2017, 100 Seiten, Maße: 22 cm, Kartoniert (TB), Englisch
- Verlag: LAP Lambert Academic Publishing
- ISBN-10: 6202060956
- ISBN-13: 9786202060950
Sprache:
Englisch
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