Aphidius colemani
spins a cocoon inside the aphid cuticle, causing it to swell. The cuticle turns from a hard, leathery brown to a golden yellow casing, known as a mummy [...] if an aphid is parasitized in a younger stage there will be no reproduction. A male wasp has slightly longer antennae, a rounded abdomen that is shorter [...] /release. Releases should be repeated at least 3 times. Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best