Thursday, January 26, 2012

Black hairy spot under hibiscus leaves - help?

My hibiscus plant has developed black hairy spots under the leaves. It is exactly at the point where the stalk is attached to the leaves.



May I know what is the problem/disease and what is the remedy
Black hairy spot under hibiscus leaves - help?
It sounds most likely like some kind of scale which would require something to kill them like Shultz Houseplant Insect Killer or horticultural oil or neem oil or insecticidal soap. The last 3 have no poison so you have to hit every "spot" because they work by coating the insect and suffocating them.



It might also be some type of gall. Not enough information to rule this out.
Reply:They are pests you have to use pest spray on all plants.

This must be done periodically.
Reply:downy mildew??? If it is, Cinnamon or soap solution
Reply:They are just hitting puberty

No comments:

Post a Comment