About- Similar in appearance to their above ground cousins, root aphids prefer to feed on the roots systems of the cannabis plant as opposed to the leaves. These pests are can vary in colour but are most often white, pale yellow, green, or brown. Root aphids are asexual and can double their population every 1.6 days.
Monitoring- As the root aphid transitions into the adult life stage, it begins to produce a white, waxy secretion that covers their body and surroundings. Look for this waxy substance on the outside of the root ball. Plants may show signs of nutrient deficiencies as a result of Root aphid damage. Some adults develop wings and may be misidentified as afungus gnat.
Treatment-NematodeSteinernema feltiaelive in the soil and actively hunt for all soil stages of the root aphid.Hypoaspis miles (Stratiolaelapsscimitus)are an economical predatory mite that will hunt the soil and will travel relatively long distances in search of prey.Chrysopa carnealarvae(aka green lacewing) will eat the winged root aphid adults. Both the nematodeS. feltiae and H. miles (S. scimitus) can be more effective when combined withBeauveria bassiana,a beneficial fungus that slows down the aphids, making the predators hunt for pests easier.