Why does your Kalanchoe Passion Cleta have sticky leaves? Diagnose the cause and fix it with our step-by-step guide.
Aphids are small, soft-bodied insects that pierce the succulent leaves of Kalanchoe to suck out sap, excreting a sugary substance known as honeydew. This residue creates a visible sticky film on the leaf surfaces and can lead to leaf curling.
Scale insects attach themselves to the stems and leaves of Kalanchoe, feeding on plant fluids and secreting honeydew. Unlike aphids, they look like small, stationary bumps or shells on the plant surface.
Mealybugs are sap-sucking pests that produce honeydew as they feed on the succulent tissues of Kalanchoe. They are often accompanied by a white, cottony residue in leaf axils.
While not a direct cause of stickiness, sooty mold is a black fungus that grows specifically on the honeydew left behind by sap-sucking insects. It can coat the Kalanchoe leaves in a dark, powdery substance.
Your plant might also be experiencing one of these issues: