Gardenia Plants
Q.

Brownish/Black Hard Shells on Stems of Gardenia

Anonymous added on July 11, 2011 | Answered

Every year my plant suffers from these hard things that form on the branches. Leaves get sticky and small webs form. When it was smaller, I could put it in the shower and wash it, but it has gotten too big for that now. What are these things, and how do I keep them from forming on my tree?

A.
A.Answers to this queston: Add Answer
Nikki
Certified GKH Gardening Expert
Answered on July 12, 2011

It sounds like your plant has scale bugs or a similar sap sucking bug. The sticky substance is produced by them and will stop once the pest issue is addressed. This article should help:
https://www.gardeningknowhow.com/plant-problems/pests/scale-bug-how-to-control-plant-scale.htm

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