Emergence dates of Eurytoma amygdali enderlein adults in the south-east of France and control strategy.
2010
Duval , Henri (INRA (France). UR 1052 Génétique et Amélioration des Fruits et Légumes) | Millan , M. (Centre Technique Interprofessionnel des Fruits et Légumes(France).)
Eurytoma amygdali Enderlein was discovered in France in 1981 and is now present in the South-east area of France, but is absent in Pyrénées-Orientales and Corsica. In this study, the adult emergence dates in 2005, 2006 and 2007 have been observed in three different places. Some chemical control tests in insectarium have showed that the “Karate® Zeon” insecticide, with active ingredient the Pyrethroids ‘Lambda cyhalothrine’, has a high efficiency and retentiveness of more 23 days. These tests were confirmed in field orchards. With one single chemical spray applied at the beginning of the adult emergence, only 1 to 4 % of fruits were infested, when more than 60% of fruits were infested in the control almond orchard without insecticide. With these results, the Karate® Zeon has been legally authorized in France to be used against Eurytoma amygdali.
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