Type of vegetation accounted for 50-60% of the variation in the Auchenorrhyncha community composition. Fertilizing and mowing affected the leafhopper community associated with the Stellario-Deschampsietum. It was the most distinct, the most variable in time, with features typical of cultivated sites: high density, low diversity and a high proportion of bivoltine polyphageous species readily invading newly established habitats. The extreme r-strategists were absent from the community of Calamagrostidetum. The community of Glycerietum was poor in species as all polyphagous species feeding on Poaceae strictly avoided Glyceria maxima as a host plant. Ass. Caricetum fuscae was dominated by oligophages restricted to sedges.