Aphelinus Aphid Mummy

The small parasitic wasp, Aphelinus abdominalis may be used against larger aphid species such as the foxglove and potato aphid.  The adult may also feed upon small aphid nymphs. To monitor, look for signs of parasitism, i.e. black mummified aphids.  These mummies may be distinguished from the brown Aphidius mummies, by their black color, and more elongated and less swollen form.  Growers have also observed that these mummies are not as strongly attached to the leaves, so may be easily dislodged from the leaves. So, more careful scouting is needed to observe the mummies.   (This species may also parasitize a grain aphid (Sitobion avenae) that is sometimes used in aphid banker systems)