Black Spots on Eugenia

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Black Spots on Eugenia

Post  chadley999 on Wed May 04, 2016 10:16 pm

Hi everyone, recently I've noticed the leaves changing color on my Eugenia. I thought they were just fading from red to green but now black spots have appeared. Can anyone tell me whats going on and if i can do anything to help?


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Re: Black Spots on Eugenia

Post  Leo Schordje on Mon May 09, 2016 5:47 pm

Sooty mold, powdery mildew, or one of many fungi that can attack leaves.

If you fix the environment, often the tree can recover without the use of fungicides.

I assume, because you are in Canada, that this is grown indoors. You need more air movement in your indoor growing space. I keep several fans on in my orchid light garden, they are small, cheap fans from local big box store. I position fans so all plants are exposed to a light breeze, enough to keep thin grassy leaves waving. I leave fans on 24 hours a day, seven days a week.

Improve your air movement, and the fungus should stop spreading, may even disappear.

If it is on all leaves, pick up a rose spray for "black spot" on roses. Should be available from any big box store or nursery. Should work for Eugenia.
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Re: Black Spots on Eugenia

Post  chadley999 on Mon May 09, 2016 10:57 pm

Thanks Leo, i do have a fan but haven't been running it much. Hopefully it will clear up soon. Today was actually the first day i put any sensitive tropicals out. I would guess if i can put it outside that would be better than any amount of air movement indoors?

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Re: Black Spots on Eugenia

Post  Leo Schordje on Fri May 13, 2016 12:00 pm

yes, outdoors in summer helps. I'm in Chicago area and it is still too cold for my tropicals. I don't put tropicals outside until night time lows are above 50 F or above 15 C. If the tropicals are in active growth, cold can shock them, you will loose leaves, and the tree will sit dormant for a while before resuming growth. The cold won't kill them, but you will loose time in the growing season. Our summer growing seasons are short enough, that having a tree in shock and needing a few weeks to recover is not ideal.
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Re: Black Spots on Eugenia

Post  chadley999 on Tue May 17, 2016 2:57 pm

I hear you on the short growing season. Everything sensitive is back in again for a couple weeks yet. Only my jade have been out for any length of time

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