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Hibiscus Plants

Q.There Are Black Spots On Back Of Hibiscus Plant Leaf Where Leaf Meets Stem. What Are They?

Zone Singapore | Anonymous added on June 18, 2021 | Answered

Tiny black spots where lead meets the stem and on all leaves and in 2 pots of red hibiscus plant that are next to each other.

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Certified GKH Gardening Expert
Answered on June 30, 2021

It could be some sooty mold starting. If you look along the stems in the last photo, you see a pest, or pest residue, probably aphids. Sometimes immature scale can look like aphids. They leave behind a sticky honeydew that invites sooty mold. Here is how to eradicate them:


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