Efficacy evaluation of different methods for the control of woolly apple aphid (Eriosoma lanigerum Hausmann) in organic apple growing

摘要

Since the woolly apple aphid (Eriosoma lanigerum^ fe still one of the major problems in organic apple orchards, at the Research Centre Laimburg several methods for the control of this pest were tested over the last years. The effect of applications ofplant protection products at different timings, of various pruning methods (used in combination with and without hail netting), and of conventional and novel rootstocks on woolly apple aphid Infestations was evaluated. Adequate timing of applications ofplant protection products enabled to improve pest control, and promising results were achieved with novel rootstocks.