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Resistance of sugarcane, Saccharum spp., to the sugarcane aphid, Melanaphis sacchari (Zehntner) (Hemiptera: Aphididae), the vector of Sugarcane yellow leaf virus : S701M07 Insect related Interactions at a Multi-trophic Ecosystem

Fartek B., Nibouche S., Turpin P., Costet L., Reynaud B.. 2012. In : XXIV International Congress of Entomology (ICE 2012), Daegu, Korea, August 19-25, 2012. s.l. : s.n., 1 p.. International Congress of Entomology. 24, 2012-08-19/2012-08-25, Daegu (Corée, république de).

The sugarcane aphid Melanaphis sacchari (Zehntner) (Hemiptera: Aphididae) is the main vector of the Sugarcane yellow leaf virus (SCYLV; genus Polerovirus, family Luteoviridae), a disease of economical importance in the sugarcane growing area. Resistance was detected in the sugarcane cultivar R 365, using a three-year field trial in La Reunion island. In laboratory, R 365 reduced aphid populations on potted plantlets and excised leaves. Using the electrical penetration graph technique, we detected a delayeddelayed aphid salivation in phloem and inhibition of passive phloem sap uptake in R 365. Future research to evaluate the resistance durability and efficiency against Melanaphis sacchari diversity and its potential for reduction of SCYLV incidence through sugarcane cultivation schemes will be discussed.

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