The sawfly Ash pests (Hymenoptera, Tehthredinida) from the Republic of Moldova

Abstract

Ash trees represent an important component in the formation of forest ecosystems in the Republic of Moldova. The studies were done during 2013 – 2023, with the main objective of identifying the impact of insect pests on ash ecosystems in conditions of the Republic of Moldova. The observations were made in the ash woods from different parts of the republic, especially those from the Moldavian Plateau; of the Forest Enterprises Chisinau, Tighina, Rezeni, Telenesti, Orhei, Nisporeni; Scientific Reserve „Codrii” and certainly from the Scientific Reserve „Plaiul Fagului” where ash is one of the dominant species. Preliminary research was carried out in sub-plots with a minimum of 30% ash in the composition, having an area of 3.0 ha. Apart from this, the object of the research was also the stands with 10-20% ash but growing in pure groups.