Complex sentence: A workshop with participants from 18 European countries (European Union as well as Eastern and Central Europe) Jeliński presented the results of the study on the usefulness of different Varroa control substances, incorporated in plastic carriers.
Split into simpler sentences: A workshop with participants from 18 European countries (European Union as well as Eastern and Central Europe). Dr. Jeliński presented the results of the study on the usefulness of different Varroa control substances, incorporated in plastic carriers.