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White powder on Purslane leaves

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posted 2 months ago

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Hi, i'm growing purslane in a pot in The Amazon jungle. And theres some kind of white powder that appears in The leaves. Any idea whats this and how to solve this?

I have grown purslane before in other places and everything was ok. Any ideA?

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Les Frijo

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posted 2 months ago

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It kinda looks like some sort of insect eggs. Maybe from whatever is eating the leaves in the second photo?

FFS

Martin Mikulcik

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Location: Missouri

posted 2 months ago

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I second insects

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May Lotito

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posted 2 months ago

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Those white dots don't seem to be on the surface, but from hollowed mesophyll tissues. If you look closely, are there leaf miners inside the white spots?

Zone 6, 45 inches precipitation, hard clay soil

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Ulla Bisgaard

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posted 2 months ago

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It’s hard to see, but to me it looks like mites since it looks like spider webs, and the eggs have the right color for it.

Live, love life holistically

Ronaldo Montoya

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posted 2 months ago

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They are not eating The leaves. I cut The leaves in order to avoid The spreading of this white powder.
AI says it's powdery mildew . And theres are diferente substances to cure The plant.
But i don't want to spray substantances. I want that My system can fix this by itself.

Is theres any strategy from permacultura point of view to avoid or fix this?

Thanks

Timothy Norton

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posted 2 months ago

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To me, those bumps look too consistent to be powdery mildew. It seems too well defined to me as I'm use to a more even coating that builds up over time (Not starting as bubbles).

I'm thinking it is some form of insect egg. I would work on doing what you could to attract beneficial insects to the area to balance out this potential insect problem.

Is this the only example or is it throughout your purslane?

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M Ljin

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My guess is not enough sunlight? Purslane requires a lot of sun in my climate at least. It looks like the mites or insects that my prickly pear cactus gets when they are brought in each winter—a low air circulation, low humidity, low sunlight, moderate temperature environment.

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Ronaldo Montoya

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posted 2 months ago

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I diluted baking soda in water and sprayed it on my purslane plants with a sprayer, but it seems it was too strong and burned the plants. Also, I've noticed that the fungus is still there. What other technique do you think could be more effective? Could neem oil or neem-based preparations work better?

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Martin Mikulcik

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Location: Missouri

posted 2 months ago

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Is it in full sun?

Martin
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Anne Miller

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posted 2 months ago

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Powdery mildew is so easy to get rid of. Try This:

https://permies.com/t/143591/health-nearby-plants-cover-crops#1124238

I do think as others have suggestion there is something else going on. Once the mildew is gone then tackle the other issue.

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Tereza Okava

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Ulla Bisgaard wrote:It’s hard to see, but to me it looks like mites since it looks like spider webs, and the eggs have the right color for it.

I agree it looks like some kind of bug- webs, eggs, etc.
Generally I find that powdery mildew starts on the underside of leaves before it gets bad enough to be on the top side, and it affects all the leaves of the same age, leaving only the newer ones unaffected. i have never seen mildew affect succulent-type leaves like aloe, pereskia, succulents, or purslane (and where I live is so humid and the mildew is so bad we have several distinct types...)

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