Pest or disease?

wintercat_gw

4 years ago

Hi. This is my hibiscus cooperi. What's wrong with h it? Many thanks! Zone 9/10, midwinter.

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Comments (4)

wintercat_gw
Original Author
4 years ago
ken_adrian Adrian MI cold Z5
4 years ago
any recent cold event ..

not great pix.. but it seems.. all the white tissue has burnt ... and perhaps the question is why ... and why the higher you go .. the less white there is ...

ken
wintercat_gw thanked ken_adrian Adrian MI cold Z5
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wintercat_gw
Original Author
4 years ago
luis_pr
4 years ago
last modified: 4 years ago
I could not see the white clearly in the first set of pics either but it first reminded of mealybugs and similar pests.... Then it reminded me of variegation in other plants; isn't cooperii a variegated hibiscus?

The second set of pics makes me ask how many hours of sun is the plant getting...In winter, they get less sun.If you see some gray (I could not tell for sure) on the leaves in the 2nd set of pics, that could be powdery mildew.

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Pest or disease?

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wintercat_gw
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ken_adrian Adrian MI cold Z5

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Pest or disease?

Comments (4)

wintercat_gwOriginal Author

ken_adrian Adrian MI cold Z5

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luis_pr

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wintercat_gw
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