Promotion of antagonistic mymarids of the grape leafhopper by planting dog roses along vineyards

摘要

Bavarian State Institute for Viticulture & Horticulture, Herrnstr. 8, D-97209 Veitshochheim, GermanySeveral mymarid species are known to be efficient egg parasitoids of the grape leafhopper (Empoasca vitis), a potential pest species (Boll & Herrmann 2004). However, overwintering mymarids depend on the eggs of other cicadellid species that predominantlyoccur in hedges. Dog roses (Rosa canina) are by far the most preferred hibernation sites of Anagrus atomus (Remund & Boiler, 1996; Boll & Schwappach 2003); for two other mymarid species (Anagrus avalae and Stethynium triclavatum) the main overwinteringsites are still unknown.