Abstract: A comparison of the biological efficacy of pesticides applied against some apple pests with standard versus drift-reducing nozzles was made in trials in intensive orchards in Slovenia. Standard and drift-reducing nozzles were compared by applying 350 L spray per hectare. No significant differences in acaricide/insecticide efficacy between the types of nozzles could be observed when controlling fruit tree red spider mite (Panonychus ulmi) and apple rosy aphid (Dysaphis plantaginea). However, drift-reducing nozzles reduced the efficacy of insecticides against the codling moth (Cydia pomonella), green apple aphid (Aphis pomi) and apple leaf miner (Leucoptera malifoliella).Keywords: apple, spraying, drift-reducing nozzles, biological efficacy, insecticides, Aphis pomi, Cydia pomonella, Dysaphis plantaginea, Leucoptera malifoliella, Panonychus ulmiPublished in DKUM: 01.06.2012; Views: 2028; Downloads: 117 Link to full text
