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 compos...

Compounds were isolated from a methanol extract of the dried stem barks of Viburnum sargentii Koehne. The structures of the compounds, namely 9'-O-methylvibsanol (3), furcatoside A (4) and lareciresinol (5) were elucidated by analysis of spectroscopic data and comparison with values for previously known analogues. In addition, (+)-catechin (1), (+)-epicatechin (2) were also isolated. This work ...