Crown Of Thorns
Q.

black and white spots on backside of crown of thorns

Zone west coast of florida | cherylcyr551@gmail.com added on October 27, 2015 | Answered

My crown of thorns has a lot of white with black spots on the back of the leaves, which used to be a vibrant green and now the leaves are very dark. I think I have some sort of spores and I would like to know what I can do before I lose this plant.

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on October 27, 2015

It sounds like a fungus or some kind.
Make sure you are not overwatering the plant.

You can treat the plant with Neem Oil. Neem Oil is organic and works as both an insecticide and fungicide.

It is safe for people and pets.

Here is a link to refresh you on the care.

https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

https://www.gardeningknowhow.com/houseplants/crown-of-thorns/crown-of-thorns-houseplant.htm

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