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Brinckochrysa scelestes [Neur.: Chrysopidae] as predator ofMyzus persicae [Hom.: Aphididae] on tobacco

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Abstract

Laboratory and field studies were conducted to study the suitability and efficacy ofBrinckochrysa scelestes Banks as a predator onMyzus persicae Sulzer in tobacco fields. Laboratory bred 2nd instar larvae ofB. scelestes at 6 per tobacco plant reduced the aphid population to the extent of 78% in 2 weeks. The movement of the predatory larvae on the tobacco plant and leaf was not at all hampered by the glandular trichomes and their secretions. The larvae moved freely and fed well and their pupae were recovered from all over the plant.

Résumé

On étudie en laboratoire et en champ de tabac la valeur et l'efficacité deBrinckchrysa scelestes Banks comme agent de lutte biologique contreMyzus persicae Sulzer. Les larves du 2ème stade élevées en laboratoire de ce chrysope à raison de 6 par plante sont les plus actives et réduisent la population de pucerons de 78% en 2 semaines. Les sécrétions des trichomes des feuilles de tabac n'ont pas d'effet sur les larves ni sur leurs mouvements. Les larves se déplacent librement et se nourissent bien; des nymphes ont été trouvées sur tous les plants, ce qui indique que le prédateur est valable contreM. persicae et bien adapté à la culture de tabac.

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References

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Rao, R.S.N., Chandra, I.J. Brinckochrysa scelestes [Neur.: Chrysopidae] as predator ofMyzus persicae [Hom.: Aphididae] on tobacco. Entomophaga 29, 283–285 (1984). https://doi.org/10.1007/BF02372115

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  • DOI: https://doi.org/10.1007/BF02372115

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