Open Access

Cultured orchards, that remain for many years, are able to become a great value for insects and spiders, if the negative influences of cultivation will be minimized by specific measures. In our project we made on four integrated cultured orchards and one orchard meadow as reference an intensive recording of the insects and arachnids, based on individual numbers, distribution to large groups, number of species (beetles, bugs), their biodiversity (Shannon), Red Data Book species and their influencing factors. By an evaluation form, created in project, the effects of five clusters of factors: separate structures, orchard structures, shading, mowing and application of pesticides. The visual presentation of the influencing factors with star-plot shows restricting effects on biodiversity and offers possibilities to rise the biodiversity. The proposed measures are aimed at increasing the biodiversity and decrease the negative effects of cultivation in cultured orchards. The largest structural diversity, adapted to cultivation, increases the availability of nesting sites, food, and wintering quarters for insects and spiders significant and develop stable populations.