Scale Insects on Plants: Identification and Treatment Guide
You wipe the plant down, pick off every visible bump, spray it with insecticidal soap. Three weeks later, the stickiness is back. You missed something, and the generic guides do not tell you what. Scale insects are small sap-sucking bugs that attach to plant stems and leaves under a hardened or waxy covering, making them look like part of the plant rather than an infestation. What most guides skip is the part that explains why so many people treat the same plant three or four times without ever fully clearing the problem: scale has a life stage – the crawler – that most contact products miss, and the two main types respond to completely different treatments. ...