You still growing that old auto flower plant? It's probley getting root rot. Cut it down.

Looks like either potassium or nitrogen deficiency but if the leaves drop too that's usually nitrogen, especially if it's still in veg. Careful when fixing things not to give it too much of what you think it needs. Dry amends are more forgiving but take time to work down to the roots.

Galgrows said:

You still growing that old auto flower plant? It's probley getting root rot. Cut it down.

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no these are photos but started at the same time

emma.dir said:

no these are photos but started at the same time

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they def rnt ready to harvest these are photo periods that were planted on November 22. Am I overwatering is that what’s causing the yellow and brown leaves do you think these plants have root rot because the plants seem pretty healthy for the most part then I look deeper in and find leaves that r brown and crispy and shriveled beyond recognition or ones that are yellow and they just pull off the plant really easily. Is it just over watering? Do you think I also have a deficiency or something? any other tips?

emma.dir said:

So on my last plant someone said the crispy brown leaves meant that my plant was at risk for developing mold

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Mold is unlikely. It's rare if the humidity is below 60%.

emma.dir said:

I was wondering if this is similar to that? What’s the cause?

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Probably not. There are several potential causes.

emma.dir said:

I’ve had the humidity at 50… should i go down??

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No. What is the temperature?

emma.dir said:

theres some brown ones that are still normal feeling like soft others are dried to a crisp. theres also quite a few yellow leaves and they are pulling off of the plant really easily like i barely tug and the leaf comes right off.

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That's normal for lower leaves during flowering. There could be nutrient or moisture deficiency. The plants use a lot of water during flowering.

During flowering, the priority for plants is to reproduce. So, the plants will take nutrients and moisture from the lower leaves to help it grow buds (aka flowers). It's not a concern unless it's extensive or shows on the upper leaves too soon. They'll all fade eventually, though, because it's part of senescence. Making seeds is the last thing a plant does before it dies. Feminized plants don't make seeds, but they do about everything else related to reproduction, and that's what we want them to do.

emma.dir said:

they def rnt ready to harvest these are photo periods that were planted on November 22.

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The buds look good to me. I'd say they're a few weeks away from harvest.

emma.dir said:

Am I overwatering is that what’s causing the yellow and brown leaves do you think these plants have root rot because the plants seem pretty healthy for the most part then I look deeper in and find leaves that r brown and crispy and shriveled beyond recognition or ones that are yellow and they just pull off the plant really easily. Is it just over watering?

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No. I don't think you're overwatering. I don't know what growing medium or nutrients you're using, so it's difficult to say for sure. For my organic growing, I need to water frequently when they're mid flower. When I see the lower leaves drying like that, I consider it meaning I didn't water soon enough. They're going to fade and die anyway, though, because they're being sacrificed for their nutrients and moisture.

emma.dir said:

Do you think I also have a deficiency or something? any other tips?

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It could be deficiency. The upper leaves appear to have plenty of nitrogen--possibly too much. The chlorosis and necrosis of the lower leaves mostly looks like auto cannibalization, to me.

Some bud nutrients might help. At that point in flowering, I use 2-8-4 from Gaia Green along with some water-in amendments.