Gardenia Plants

White, Sticky ‘Cotton-Like’ Substance on Gardenia Plant

Anonymous added on June 18, 2011 | Answered

What is this substance and how do I remove or eliminate it from my gardenia plant?

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Certified GKH Gardening Expert
Answered on June 20, 2011

Gardenias are vulnerable to various insects including: Aphids, Mealy bugs, Scales, Spider Mites, Thrips, and Whiteflies. Many of these pests secrete a sticky substance known as honeydew. If it’s cotton-like in appearance, then most likely your problem is due to mealy bugs. Here is a link you may find helpful in treating this pest problem:

You can also try neem oil. Here is more information:

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