gwarf

Hey,
I'm a first-time grower and I've started to notice these weird black stains developing on two of my plants:




Is this some kind of fungus I should be worried about or am I just paranoid?
On an unrelated note (but not worth starting a new thread for) I live in the new england area and I've had a biblical plague of slugs this year - has anyone else noticed them? They ate thirty of my babies (baby plants, that is, not baby humans). My solution was to lay out a mine field of rock salt, but from now on whenever I see a slug I stomp on him furiously - even in public while people stare at me.
Thanks

ZoomBoom

Hello gwarf, and welcome to the garden!

Hard to tell from the pics.

How have the temperatures been at night?

edit: DONT think its a fungus yet. looks more like temp issues maybe a deficiency.

You could also try filling out the nursery questionnaire (link in my sig), that should cover all the necessary info.

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mr. hyde

looks like it might just be purple coloring but it is hard to tell from the pics.

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ZoomBoom

Yeah, I couldn't tell if it was purpling or if it was necrotic.

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gwarf

Hey ZoomBoom:
I forgot to mention something that may be of importance: only 2 plants out of 10 are showing this discoloring. Its a black coloring around the edges (spiky parts) of the top few leaves. The plants are outdoors and although the humidity in my area has been high (we've had a lot of rain), the hottest day we've had so far was about 95F. Here are some of the relevant answers to the nursery questionnaire:
1) Growing from random (not commercial) seeds
2) the plants are about 2 months old, growing slowly
3) the affected plants are about 8 inches tall (yes, I realize they won't mature before winter )
4) the containers are only temporary, but they're about 6 inches in diameter and 6 inches deep.
5) miracle grow
6) I use water from the natural stream nearby (which is where my fungus theory comes from), I water them on hot days if there hasn't been much rain.
7) I lazily didn't check the pH, even though I have the chemicals for it.
8 - 9) no fertilizers or sprays
10-12) growing outside
13) temps can get up to 95F during the day. I leave them out at night. Very humid due to frequent rain.
14) the soil is pure miracle grow, but again I haven't tested the pH.
15) I've noticed flies, spiders, and slugs - but the slugs are shot on sight.
16) I have zero experience, but I live in woodstock so I consult my friends from time to time.

I'll get back to you on the pH information in a few minutes.

shrubz

those should look great when they get deep into flowering and start showing more colour. maybe only in the foliage or both. I concur. that doesnt look like mold to me either. or even black in colour.

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gwarf

Thanks shrubz, I guess I was overreacting. B.t.w: the pH of the soil was around 6.8 and the water was about 7, so I don't think the plants are burning. This is all very good news. Thanks to all who responded.