Help got these spots and only on a few plants.

[mikeb6109]

Here are a few pics. The last picture is a plant that is in full bud and will be harvested in a couple days. Should I be worried??
The first 2 pics are white widow and the last pic is an early Miss both autos and from crop king seeds.







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[Greengrass]

Don't know about the spots but are you sure they are ready to harvest?
The widow look like it could have a fews weeks left to fatten up
GL pal

[mikeb6109]

Don't know about the spots but are you sure they are ready to harvest?
The widow look like it could have a fews weeks left to fatten up
GL pal

The white widow still has 3 weeks to go. The early Miss (last picture) had another week but the spots are worrying me as they are on the bud section


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[The Aspie Toker]

I hope I am wrong, but it looks like black leaf spot.

[mikeb6109]

I hope I am wrong, but it looks like black leaf spot.

And that is what ???


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[The Aspie Toker]

And that is what ???

Diplocarpon rosae is its other name. It normally develops in Spring though. Go to Google images and take a look at black leaf spot, and see if they are similar.

[mikeb6109]

Diplocarpon rosae is its other name. It normally develops in Spring though. Go to Google images and take a look at black leaf spot, and see if they are similar.

I googled my symptoms and same exact pictures and leaning more on a deficiency in ph .......


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[Bulls]

Potassium deficiency from what I can see.. really need nore info about your grow...can be various reasons.

Soil or hydro or coco
plant age:
pot size:
has it been repotted? and when?:
soil type:
nutes or additives used and how often for soil:
Air temps (max min):
Res temps (max min)
humidity:
lighting type (hps, led, cfl)
ph level:
EC (hydro and coco only)
Background EC.
feed schedule and nutes (for hydro and coco)

anything else you think may be relevant!

[The Aspie Toker]

I googled my symptoms and same exact pictures and leaning more on a deficiency in ph ......

I doubt it is black leaf spot, as it's rather late in the year for it to start developing.

Potassium deficiency from what I can see.. really need nore info about your grow...can be various reasons.

I am hoping it is the case, but it's the worst case I've seen of it.

[mikeb6109]

Potassium deficiency from what I can see.. really need nore info about your grow...can be various reasons.

Soil or hydro or coco
plant age:
pot size:
has it been repotted? and when?:
soil type:
nutes or additives used and how often for soil:
Air temps (max min):
Res temps (max min)
humidity:
lighting type (hps, led, cfl)
ph level:
EC (hydro and coco only)
Background EC.
feed schedule and nutes (for hydro and coco)

anything else you think may be relevant!

Just an outdoor grow, nothing special never tested ph or anything before. I feed them monster Bloom and water when needed.


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