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

摘要

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 projecthas been started in 2007 testing combinations of releasing earwigs and oil applications in order to develop an on-farm 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.