Quote:
Originally Posted by estación seca
Spots on leaves in homes or lower humidity outside areas are almost always problems with culture rather than infections.
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Agreed, thus why my suggestions were about improving culture.[COLOR="Silver"]
---------- Post added at 05:43 PM ---------- Previous post was at 05:30 PM ----------
Quote:
Originally Posted by Lynnzerr
I actually saw the grower on Friday, and it turns out what I had was mildew from not enough air circulation, which doesn't damage the plants when controlled. I've added small fans to all the areas where my plants are now. and so far so good!
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I've never seen or heard of mildew growing as black spotting on plants, but okay. Some people use it as a very generic term to refer to a moldy growth.
The reason for treatment is mostly to reduce the concentration so you minimize the amount of plants that get spotting for aesthetic reasons. Another reason is that without testing you don't really know what it is, so some people might prefer to take preventative measures. If I get something spreading through my plants, I will address the different possible issues and remedy them.
This decision, of course, varies depending on the plant. I wouldn't treat Oncidiums or Zygos, they always get spotting. For a Phalaenopsis, they have such resilient, succulent leaves that seeing that would worry me. I recently had a Phal grow a little black lesion and I washed it with hydrogen peroxide and then simply waited and observed, didn't cut the leaf or anything. If I saw it spreading to other plants I would've probably taken a more aggressive approach. Usually, if I have plants showing signs of stress for no apparent reason, I move them away from the crowd to avoid possible disease transmission.
Quote:
Originally Posted by Lynnzerr
I'm actually using the garlic for the natural auxins which have been shown to promote cellular division to promote blooms and root growth. I've found that my plants really perk up after they've been fed with a tonic of garlic and distilled water. Not that they were drooping before, they just look super perky for a day or two afterwards.
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Ah, I see. Some people use coconut water for that. Why not drench the pot instead of going through the hassle of wiping the leaves?
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