Stem turning black

[KL4D4]

My outside plant has a section on it where the stem is turning a dark color. One of the side branches had the same dis-coloration on it and started to die.

Is this possibly a sign of mold? I don't have any pictures sadly, but it goes from a nice green, to a section of darkness....

any ideas are appreciated, thanks!

[Weedhound]

Without photos.....KL....google up stem rot and see if you can find anything similar. That's what it sounds like.

If it is you have to cut bad parts away. That's about all I know about it....sorry. :(

[KL4D4]

Ya it does look like this... http://www.plantsciences.ucdavis.edu/uccerice/images/rpfig23.gif

The black is on a part of the main stem below the main bud area.... though this started as spots and has only now really become very noticeable.

It's been raining the past 5 days straight, temps in the 50's.

The buds are a little purple also due to the temps (: But they have a couple of weeks to go before harvest... hm

[BobBong]

yes
that's a very bad mold / fungus

cut it off or down .. however you choose either way this close to harvest it's best not to leave it

[Weedhound]

THAT photo doesn't look very good.....is it your main stem....like you can't trim it away main stem? Bob if it IS the main stem....that will kill the plant off won't it?

[BobBong]

THAT photo doesn't look very good.....is it your main stem....like you can't trim it away main stem? Bob if it IS the main stem....that will kill the plant off won't it?

it'd be the same as topping wouldn't it? I'd be faster to cut off any fungus or disease like that then to leave it and let it go to town on your plant.

[Weedhound]

Yes if it has several weeks to go....:(

[KL4D4]

OK so I should go there and try and scrape of this rot? I am down to leave it growing as long as possible even if it starts going Hermie. Other wise I will go and check it after work tomorrow after 3pm CST.

I will also bring my camera out with me this time, as I have recovered my memory card from my roommate.

[attachment=o161891]

buds over a week ago.

[Opie Yutts]

Nice looking bud there. You gotta get rid of mold. You could try spraying a fungicide all over it, but if it were getting close to harvest, I would make sure it is an all organic fungicide. If this doesn't work you have to perform surgery. You cannot smoke mold or rot, it is very dangerous. I live in the Pacific Northwest, and have to trade in proper yield for some bud rot on anything I grow outdoors. You just gotta keep picking out the rot, and think about harvesting early.

[KL4D4]

It just that this plant has had these spots on it for a while.... and now its grown. I'll see what it looks like in the morning. Its been an organic grow at least (: But at the same time the buds have no rot on them, only a portion of the stem... assuming the blackness I saw was in fact rot. The buds were using the the green fan leaves on the buds as nutes so the small fan leaves will be the final. I hate this.... I really want to cry.

[KL4D4]

[attachment=o162031]

Here is the main spot of the black

[attachment=o162032]

and another

[attachment=o162033]

Sorry this is a clear picture but you can still see the darkness

I was able to scrape off the blackness from the stem and it came off so I don't know what to think about it. I didn't want to scrape away all of the stem and open it up for any infections.... I have some other pictures from farther away

[smoke_and_fly]

add a tea spoon of milk to a litre of water
then foliar feed the plant with this every 2nd watering for 1week
peace

[Opie Yutts]

I don't know, that black looks like what I would expect to find on a dead plant that has been sitting outdoors for awhile. On the other hand the purple stems are a sign of nutrient deficiancy or surplus.

[Weedhound]

I've never heard of foliar spraying milk.....think I'd want a pretty good explanation of why that would work before I did it to my plants.

KL.....can you find a good organic fungicide and just apply it to the stem where the black part is? Don't spray the buds with it....just the stem.

[Opie Yutts]

Yeah, I was wondering about the milk thing too. smoke and fly, care to elaborate?

[Weedhound]

KL....any chance we can get a photo of the whole plant? That would help imo.

[KL4D4]

Well I figure it'd be easier to just link you guys... http://boards.cannabis.com/grow-log/112351-here-we-grow-again-indica-baby-2.html#post1689635

http://boards.cannabis.com/attachments/grow-log/162036d1192993662-here-we-grow-again-indica-baby-img_1808.jpg

If you expand this picture with your cursor you can see the main upper part of the stalk. I might have some other pics I can find here in the mean time. In fact you can see the dying branch which was "infected" as well.

I just figured that the red stems either meant it wanted some more phosphorus or the cold temps. I do live in Minnesota aver age temps get around 40 at night if not lower we had some frost 2 weeks ago... twice but its still going. I put the new pics up it certainly isn't dead yet.

Some of the side shots that had the black on them certainly look as if they had died. They buds and leaves were starting to dry already, still smelled really good.

[Opie Yutts]

OK, this has been freaking me out. Does nobody have any help for this poor bloke? The only other time I see this is in fall or winter, on plants that have been dead for a few weeks, and only after the rainy season has started. On the thousands of plants around here that I see it on, it looks just like some kind of fungus, mold or rot. If I only see it on dead plants, how can KL4D4's plants be infested so badly with it. It just can't be the same thing. Somebody please help ease my troubled mind.

[KL4D4]

I still have branches that are alive out there on the plant.. the stem randomly went bad, some sort of infection or something?

[Gundari]

i dont really know what to tell you man, but i would suggest harvesting early before that stuff gets too bad and ruins your entire plant. Better to have harvested early and have some bud rather then trying to play this thing out to the end and end up having no bud. I usually air on the side of caution though.

[KL4D4]

In the end the top was starting to die off, like some of the lower stuff that had been affected. Its sorta whispy, some trics and even a couple seeds. I just took off the other tw o branches that were still growing fine, they share the whispyness however the buds ended up looking pretty nice. I need to busy my microscope out and check now that they've been drying in a closet the last 4 days

[rastaman79]

I`d cut it Now! im with opie.Some of the buds already look mouldy,I had a small problem with it the end of this season.

[rastaman79]

I need to read more of the posts!

[klondike_bar]

see if you can remove the rot, if ynot check the branches/buds.

grow it till it kills itself, or until the buds look in danger and pull it then

in other words...let the damn thing die, so long as the bud doesnt go with it!

[sd6515]

It looks to me like the stem must have been wet for awhile and judging by the vegatation around it when it was green and denser it would have allowed that to happen not to mention you can tell that it wasn't getting a whole lot of light down there because of the lack of leaves IMO it looks like the stem is rotted and you should see how it goes but if that rot got deep enough it's gonna die and even if it was getting nutes and water I would think it would impart some bad tastes into the bud and I would maybe sample a bud and decide from that