Wie lässt sich Drahtwurmfraß an Kartoffeln im Ökologischen Landbau reduzieren?

Summary

Wireworms are very important animal pests in ecological farming. Some strategies were tested to regulate wireworm damage in potato farming. Forecrops such as an-nual legumes reduce the damage by wireworms under 10%. Catch crops such as Trifolium resupinatum have a positive impact on the quality of food potatoes. Under-sown crops after the last ridging had no reducing effects. Some potato varieties are more susceptible for wireworm damage. The cultivar ‛Nicola’ had the lowest wireworm damage with about 13%. Wireworm damage arised linear with later harvest dates. Pheromone traps are a good method for controlling beetles flight. Metarhizium ani-sopliae was tested as a biological control agent for wireworms. There was no effect on the wireworms’ population.