Control of the woolly apple aphid (Erisoma lanigerum Hausm.) by releasing earwigs (Forficula auricularia L.) and support oil applications - an interim report of first year results

Summary in the original language of the document

The woolly apple aphid (Erisoma lanigerum Hausm.) has been recognised for some years as
a serious pest in organic fruit growing where they may cause severe economic damage due
to a lack of control strategies. Based on preliminary results a new project has been started in
2007 testing combinations of releasing earwigs and oil applications in order to develop an onfarm
control strategy. In this paper we present preliminary results of the first year of the
project´s field trials. They showed good efficacies for applying oil preparations by brush. The
efficacy of releasing earwigs depended on the infestation intensity.