Pests of open ground roses in conditions of Orel region

Abstract

Rose is the most popular of all flowering shrubs. But the decorative quality of flowers can get worse when they are damaged by pests. Species of pests on the territory of the Orel region have not been studied well enough. In particular, the information about some of the most important phytophages species on roses dates back in general to the middle of the last century. In this regard, the study of pests species on roses in changing environmental and economic conditions is of great relevance and practical importance. As a result of our study the fauna of rose pests has been identified and the most harmful open ground species in the conditions of the Orel region have been found. The most common sucking insect pests are Tetranychus urticae, Thrips fuscipennis, Thrips tabaci, Macrosiphum rosae, Edwardsiana rosae. The most dangerous gnawing pests for roses are bugs, caterpillars and larva Ardis brunniventris, Arge rosae, imago Cetonia aurata, Epicometis hirta, the roots of plants are damaged by Gryliotalpa gryliotalpa and Melolontha melolontha. Among 10 studied varieties belonging to the group of hybrid-tea Royal baccara and Shakira were identifi ed as resistant to the phytophages. They can be used further for the selection of cultivars in the landscape design. In the end, a calendar of harmfulness of phytophages on rose shrubs in the conditions of the Central Black Earth Region of Russia (the Orel region) has been formed.