According to Markus Drappatz, a large part of the approximately 9400 oaks are infected. He is responsible for the fight against the oak process spinner at the city of Leipzig. This year he is trying out a new method: threadworms.
According to Markus Drappatz, a large part of the approximately 9400 oaks are infected. He is responsible for the fight against the oak process spinner at the city of Leipzig. This year he is trying out a new method: threadworms.