Biopar
Application Distribute the material in heaps near to the places where the flies pupate and cover with 5-10 cm of straw Make sure the material is distributed [...] When the adult parasitic wasps emerge from the pupal shells, they will start searching for fly pupae to parasitize. After parasitism, wasps of the new [...] Koppert advisor or a recognized distributor of Koppert products for advice on the best strategy for your situation. Cattle: 200-400/animal Calves: 800-1,000/animal