Aphids are very common sap-sucking insects that can cause a lack of plant vigour and distorted growth. Aphidius and Praon are tiny wasps, whose sole purpose in life is to munch up aphids.

Just let these tiny little creatures loose alongside some Aphidoletes larvae. They’ll turn into little midges, but they will not bite you, just aphids. There couldn’t be a more natural way to save your roses.