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Sweet potato leaf weirdness

 
pollinator
Posts: 234
Location: Zone 8b Portland
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forest garden fungi food preservation
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I’m starting sweet potatoes from saved tubers. I’m seeing this odd white crystal stuff on some of the leaves again. Does anyone know what this is? It seems to kill the leaves eventually. The plant usually seems to outgrow this.
B388D1BE-2255-488A-B191-FCD01375FE63.jpeg
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pollinator
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found this:

Sweet potatoes are among the vegetables high in calcium oxalates, which can be exuded through plant pores (stomata) under certain conditions. It will form sand like crystals when it dries. The mechanism is not exactly like guttation in which a function of hydathodes exuding excess internal water.
 
Chris Holcombe
pollinator
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Location: Zone 8b Portland
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Wow! Amazing find. I didn’t know they could do that.  I’ll do some research and see what is causing it. Maybe I have something out of balance
 
please buy this thing and then I get a fat cut of the action:
Rocket Oven – is it Right for You? Here’s What You Need to Know
https://permies.com/t/99726/rocket-ovens/Introduction-rocket-ovens-build
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