Rophoria
from 200-600 pupae per ha/release. Releases should be repeated a number of times. Consult a Koppert advisor or recognised distributor for advice on the best [...] carboard box. Hang the open box vertically on the plants, preferably close to flowers. Protect from direct sunlight or rain. Dosage The dosage of Rophoria [...] Rophoria depends on climate, crop and aphid density and should always be adjusted to the particular situation. Start introduction preventatively, or as soon as