Kyrychuk I. The pest of beet and measures to control their numbers in Polissya Ukraine

The object of research – development of environmentally friendly elements of protection of a beet from the main pests. The goal – development and justification elements of system beet protection again complex of pests in basic study of the features of biology, dynamics of the number and harmfulness of dominant species and the use of effective methods of regulation of their numbers in the conditions of Polissya Ukraine.Metods – field, laboratory, mathematical-statistical, calculated. The novelty. In the basic of monitoring in zone Polissya of Ukraine for the first time the species composition of table beet pests, their number depending on the ripeness of the variety, was established.Specific features of developmental biology of 9 dominant phytophagous species have been clarified. The seasonal dynamics of the number and the harmfulness of the main pest species were studied depending on the weather conditions of the growing season. The technical efficiency of modern insecticides (for processing seed) against the beetles, the may bug, the beet mines drakes, the ordinary beet blisters, the beet leaf aphid and the julida. The highest technical efficiency against the complex of pests of stairs and mowers was provided by Poncho 600 FS, TH - 86,5 and 97,3%, respectively, against beetroot ash - Cruiser 350 FS, b.c. - 95,4%. Was performed a comparative evaluation of biological and chemical agents for processing sprayer against the ordinarybeetblisters and the noctuids.Aktofit, c.e, has proved high technical efficiency (76,9%) against the beet leaf aphid. Lepydocid(Bacillus thuringiensis var. Kurstaki, 3 serotypes, titer 1,0x109 spores / ml) – 77,6 % against the scaly phytophagus. This economic and economic assessment of the use of insecticides and biological agents against pests in the stairs and during the growing of culture.