Abstract
This paper presents a synthesis of the results obtained during a long- -term investigations conducted on the distribution of aphidophagous coccinellid species and their quantitative and qualitative structure in sugar beet fields in Vojvodina. Composition of coccinellid communities and the annual changes in abundance of species are influenced by many variable environmental factors, but also by the prey availability during the season. Chemical treatments against flea beetles in May or/and against noctuid larvae in late July and the type of the adjacent crops may also affect the quantitative composition of adults coccinellid on sugar beet fields. During the season adults coccinellid are more abundant than larvae. The qualitative structure of coccinellid communities in sugar beet fields is not different than those from other field crops. These communities consist mainly of Coccinella septempunctata L.; Semiadalia undecimnotata Schn.; Propylaea quatuordecimpunctata L.; Hippodamia (Adonia) variegata Goeze and Hippodamia tredecimpunctata L. Other species are present in a small fractions.
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