My daughter has a 2 year old brugmansia in her front yard in Santa Cruz. She lives 1/2 block from the ocean. The plant is watered on drip irrigation (no sprinkling) and not overwatered. Brown spots have developed on several of the leaves, causing the leaf to turn yellow then brown. She has been removing the spotted leaves. Does anyone know what this is or what should be done about it? I can't find anything in my garden books.
Thanks.
I'm not good at this kind of thing but would guess a chemical burn from insecticide spray or from fertilizer that may have got on the leaf and burned it. I guess it could be from some kind of sucking type insect too. Hopefully someone will come along and tell you because I am also interested in what it could be.
Could it be salt spray/mist from the ocean?
I thought of the salt from an ocean spray, if there had been wind, followed by a blazing sun, even for just a few minutes, but I'm a newbie and I surely don't know, good luck, hope you find the problem and the solution!!! SLike
Thanks to all of you for your replies. I had thought of the salt spray, but have not noticed any other plants that have the same spots. We'll see if anyone else has a clue.
gardenquilt, Rootdoctor posted a link for bugs and such today that might be helpful; however, I cannot locate the thread, but it might be helpful for your problem. Good luck and keep us posted!!!!! SherryLike
I wonder if it is a fungus. We need Monika or Susie. I will send them this link.
It could be a leaf fungus but it looks more like a burn to me.
It could be caused by water drops, which work like a magnifying glass together with sun rays.
It looks like it could be a leaf fungus to me, and it probably wouldn't hurt to spray it with a broad-spectrum fungicide, such as Ortho Garden Disease Control. It won't clear up the spots that are already there, but will prevent new ones from forming. Remove all of the effected leaves and spray about twice or 3 times every 7 days or so.
I agree with Monika, could be a fungus, but also looks like drops of moisture caught the sun and burned the leaf. Won't hurt to spray with a fungicide with chlorothalonil as active ingredient. Good for fungus, but shouldn't burn the leaves if sprayed in early morning or late evening out of hot sun.
Thanks for your insightful messages. I'll pass on your suggestions to spray with a fungicide and we'll see what happens. This is my first time using this web site and it's great. You are all so helpful.
