Оренбургская губерния
Genko began his professional activities as inspector in the province of Vilnius in Bialowieza, in 1862 in the Orenburg Governorate and in 1863 in the Vyatka province for the management of naval construction forests. For his outstanding contribution, in 1864, Genko was sent to Prussia for one year. Back to Russia he worked in the Vilnius and Kaluga Governorates. In 1866 he was appointed to be junior forest warden of the Tellerman Forest which included the Shipov Forest. In 1872 this forest was declared to be a separate forest of the first category and Genko was appointed as its warden. He remained there until 1876. During the 10 years he was there, he installed new oak plantations and built paved roads in difficult terrain.