EN
Biodiversity is an essential component to preserve the stability of life sustaining structures. Creating new habitats, such as perennial bioenergy plant plantations, may help to maintain it. This includes short rotation willow. Willow plantations present an excellent environment for a large number of species of plants and animals, together with beneficial insects. The studies on beneficial insects on short rotation willow plantation were carried out in Winna Góra in 2008 and 2009. For comparative purposes, additional studies on the occurrence of insects in traditional crop (sugar beet, potato, spring barley) were conducted. The widest biodiversity was found on the willow plantations, especially a few years old.