EN
Increasing area of willow plantations for energetic purposes as well as the lack of plant protection products registered for protection of willow cultivation often leads to mass pest infestation which cause significant economic losses. The aim of experiments conducted in 2009–2010 by the Institute of Plant Protection – National Research Institute in Poznań was to assess the efficacy of the following plant protection products: Calypso 480 SC, Karate Zeon 050 SC and Mospilan 20 SP in reducing the number of willow beetles (Phratora sp.). All tested insecticides showed a high efficacy and might be recommended for controlling the pest Phratora sp. on willow plantations.