White spots

Hey guys its my first post here, I just started my first grow and things are overall going pretty well. Ive done a lot of research but actually getting down and growing is a totally different thing. I was able to spot and notice nute burn in some of my plants, and have been only getting water for awhile now. The plants are still pretty young.

In this one particular plant I just noticed this white spot on it. It does not look like the nutrient burn I am familiar with. I am inclined to say its diseased and kill it before it spreads, but am not 100%. Is there anyway I can tell the difference between a diseased plant and one just burned via heat or nutes?
Pics are same plant
http://img222.imageshack.us/img222/3311/img1197k.jpg
http://img801.imageshack.us/img801/3107/img1198r.jpg

The second picture definitely looks like a nutrient issue but the first I am not sure. Any ideas?

And some of my healthy plants... :rastasmoke:
http://img593.imageshack.us/img593/9571/img1186dq.jpg
http://img442.imageshack.us/img442/521/img1200z.jpg

Very doubtful it's disease, or it's neighbors in the growroom would likely be affected, too. What does the underside of the leaf look like?

To me, it looks like one of two things.

1) Have you used a magnifying glass to look for bugs on the undersides? (I doubt this is the cause, but I'd check anyway)

2) It looks like the larger injuries are possibly from leaf-tip irritation. When a fan blows the leaves (leaftips, for example) back-n-forth against another leaf, it can irritate the leaf being rubbed, it will cause a sore that looks similar to that, which will brown-up as the damaged part dies. Old injuries don't "heal", but new growth shouldn't be affected.

The browning of the smaller leaves kinda looks like a transplant injury or some other mishandling. Keep an eye on 'em and let us know if anything get's worse.

I am going to offer some un-asked for advice.

Use a potting mix, not something with outside soil for an indoor grow...prevents bugs...if you use outdoor sterilize first at 350 degrees for an hour. Commercial mixes have buffers to keep the ph constant longer.

Use real pots, they let the roots get air.

I cannot see the pics as I do this so I may edit, but I get the impression they are surrounded by metal foil....use white, not foil as you could get burns.

The very first picture is most interesting, almost like something ate only the green part of the leaf structure. Everything looks pretty healthy like RT says, and will have a better chance of staying that way with our suggestions.

Quote:

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Originally Posted by WashougalWonder

I am going to offer some un-asked for advice.

Use a potting mix, not something with outside soil for an indoor grow...prevents bugs...if you use outdoor sterilize first at 350 degrees for an hour. Commercial mixes have buffers to keep the ph constant longer.

Use real pots, they let the roots get air.

I cannot see the pics as I do this so I may edit, but I get the impression they are surrounded by metal foil....use white, not foil as you could get burns.

The very first picture is most interesting, almost like something ate only the green part of the leaf structure. Everything looks pretty healthy like RT says, and will have a better chance of staying that way with our suggestions.

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Thanks for the tip. What I am using right now is crap (and I know it) its - MiracleGro :( But I am writing this right before I run to the local nursery to buy Fox farms ocean mix and "real" pots as you say. The cups I have do have holes cut in the bottom to allow a little aeration but real pots will be a lot better

I do not see any bugs in the grow room, the walls are white - no foil.
Some pics are here if you want to check the setup. Once I know what Im doing ill put a grow log here :P
www.weedguru.com • View topic - blackys grow log

It looks like it could have been from another leaf blowing on it. I did not know that would cause damage like that. Either way I ended up killing the plant, because it was bagseed and I am making room for my chronic sprouts. I just wanted to know if it was a disease what I should look for.

Quote:

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Originally Posted by BlackXS

I ended up killing the plant, because it was bagseed and I am making room for my chronic sprouts. I just wanted to know if it was a disease what I should look for.

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Do you want the list alphabetically, or in order of importance...? <kidding>
Best to worry about keeping them healthy, rather than looking impatiently for a non-existant disease. If they don't look right, or if you suspect anything is amiss, post a picture or two and likely someone will be able to help.

Unless you can really afford it, it can be a benefit to learn on freebies (bagseed) till you get the hang of properly caring for your ladies. Tiz very easy to screw-up, especially in the first few grows.

Leaftip irritation is fairly common, and nothing to be worried about. Bend the offending leaf, or if from a different plant turn the pot around...but don't go cutting leaves off just because they touch. :thumbsup:

A selection of pot sizes...not a huge pot.....have the plant grow up to the pot size and transplant. RT is probably the most knowledgable here for soil grow. Listen to him.

And, as we say over and over, don't freak out so easy, KISS principle, and ask us, we can help most of the time....You could have used that bag seed stuff to learn how to identify male/females......everything has a purpose, just don't over think it.