Title : Almond seed wasp
Visit Count : 1299 Time(s)
Upload Date : 3/28/2016 - 2 Year(s) ago
Category : Stone fruit
Monday, March 28, 2016
Visit Count : 1299 Time(s)
Upload Date : 3/28/2016 - 2 Year(s) ago
Category : Stone fruit
Pest Name: Almond seed wasp, Eurytoma amygdali Enderlein (Hymenoptera: Eurytomidae)
Economic Significance:
Almond seed wasp is an important pest of almonds in a number of European countries and the Middle East. almond damage can reach 90% in certain susceptible varieties

Biology:
The wasp has one generation per year, and larvae overwinter inside the infested almonds that remain mummified on the almond trees. The adults emerge in spring after boring a circular hole through the pericarp. Within a few days they mate and the females start ovipositing in the unripe green almonds. The hatching larvae move through the nucellus and the embryosac to feed on the embryo when the larva is fully grown, it enters diapause within the seed

MANAGEMENT
Control measures for the almond wasp are based on cultural practices such as collection and destruction of the infested almonds, and chemical control by the application of a systemic insecticide against the young larvae. Chemical treatments generally are applied 10–15 d following the peak of the adults’ flight, when most of the eggs have hatched

Reference

BASILIS E. MAZOMENOS, CHRISTOS G. ATHANASSIOU, NICKOLAS KAVALLIERATOS and PANAGIOTIS MILONAS. 2004. EVALUATION OF THE MAJOR FEMALE Eurytoma amygdali SEX PHEROMONE COMPONENTS,(Z,Z)-6,9-TRICOSADIENE AND (Z,Z)-6,9-PENTACOSADIENE FOR MALE ATTRACTION IN FIELD TESTS. Journal of Chemical Ecology, Vol. 30, No. 6,
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