Harmfulness of the viburnum leaf beetle (Pyrrhalta viburni Payk.) on plants of the Viburnum L. genus and elements of its control technology for strategies in breeding work in the system of fruit and decorative gardening

The studies were conducted in various ecological points of Ukraine (western and northern part the Forest-Steppe, Southern Polissia) to examine bioecological features Pyrrhalta viburni Paykull develop measures reduce its harmfulness system fruit decorative gardening. purpose study was viburnum leaf beetle on plants Viburnum L. genus elements control technology (selection species, varietal composition, seasonal pruning, mechanised trunk, or inter-bush loosening soil, application mineral fertilisers, use paraffin oil Actofit biological product) for strategies breeding work. based method conducting a qualification examination, visual methods (route detailed), accounting describing pests, determining degree score infestation, percentage damaged plants. As result, species are differentiated by susceptibility into: susceptible – V. opulus, sargentii, moderately poorly receptive lantana, immune resistant sieboldii, garden conditions opulusand sargentii sieboldii lantana. most effective measure mechanical eater, particular, collection, hybrid, breeding, queen nurseries, is pruning individual branches with pest eggs laid them during November-March. It identified that appropriate formation barriers nurseries Viburnum, represented other (Siebold’s viburnum, lantana), which less than opulus will allow preserving valuable genotypes above-mentioned from damage at an early stage prevent environmentally dangerous chemical pesticides. results expand information about Payk. can be used ecology insect developed controlling populations gardening