Cherry Andy J., Osae M., Djégui D..
2004. Relative potency, yield and transmission of a Kenyan isolate of Plutella xylostella granulovirus in a population of diamondback moth from Benin, West Africa.
In : Improving biocontrol of Plutella xylostella : Proceedings of the International Symposium, Montpellier, France, 21-24 October 2002. Kirk Alan A. (ed.), Bordat Dominique (ed.). CIRAD, USDA-ARS
Résumé : A Kenyan isolate of Plutella xylostella granulovirus (PlxyGV) was >90 fold more virulent in 2nd instar P. xylostella larvae from a Benin population than a Kenyan population based on LC5o values. Indigenous PlxyGV has not been found in Benin and may explain the susceptibility of Benin P. xylostella. PlxyGV is transmitted in a density dependant manner from PlxyGV infected cadavers to healthy larvae and healthy larvae were observed to feed on infected cadavers. Transmission from infected live to healthy larvae increases with time post-infection. Seedlings emerging from PlxyGV-Ioaded soil acquired adequate virus to kill 2nd instar P. xylostella larvae.
Mots-clés Agrovoc : virus des invertébrés, agent de lutte biologique, pouvoir pathogène, Plutella xylostella
Mots-clés complémentaires : Virus entomogène
Classification Agris : H10 - Ravageurs des plantes
Auteurs et affiliations
- Cherry Andy J., IITA (BEN)
- Osae M., University of Ghana (GHA)
- Djégui D., IITA (BEN)
Autres liens de la publication
Source : Cirad - Agritrop (https://agritrop.cirad.fr/511160/)
[ Page générée et mise en cache le 2024-01-28 ]
