What's this Black stuff on my Japanese Allspice sapling Leaf?

junmilo

Shohin
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Location
Ontario, Canada
USDA Zone
5
Hi,

Just noticed some of these black mold? fungus? on my 3 month old Japanese Allspice Leaf. is this fungus? These were grown from seeds.

Should I remove the leaf that have them? (Attached photo)

Thank you.
 

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Leo in N E Illinois

The Professor
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on the IL-WI border, a mile from ''da Lake''
USDA Zone
5b
Doesn't look that bad. If indoors, more air movement would prevent spread. Add a fan to your growing area. Leave fan on 24/7. If outdoors, it might be a combination of wet leaves and cool temps. Summer will be here soon enough.
 
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