Leaves turning white

[Rusty Trichome]

Weez is right, Dutch. Yours are yellow. not white. And yours almost looks like heat damage, or spraying the leaves and lowering the lights, (steamed leaves) or stabbing the roots with a stake. (perhaps a bamboo one, lol). Did you at some point accidentally brush the plant against the hot bulb?

OP's photo's look like they never had chlorophyll to begin with.
Never seen light bleaching from UV light, but there was no mention of UV light anyway...
With a vented hood, (implying a glass barrier) a broken bulb envelope is ruled-out...
Only thing it leaves me with is genetics. Or...someone is dicking with us and doctored their leaves or washed-out the yellowing with photoshop. :wtf:
Can we get a good picture of the white while still on the plant?

[Dutch Pimp]

Weez is right, Dutch. Yours are yellow. not white. And yours almost looks like heat damage, or spraying the leaves and lowering the lights, (steamed leaves) or stabbing the roots with a stake. (perhaps a bamboo one, lol). Did you at some point accidentally brush the plant against the hot bulb?

Hi Rusty

1. It looked snow white in person...and like I said earlier..it progressed very slowly over a 3 week period...during 2-5 week, 12/12 flowering cycle.
The fan leaves were still green, on their undersides & and white/shriveled on top?

2, The temps at ground level & light level, never went over 83 degrees...and I don't spray leaves.

3. I do use a moisture probe to check for the next watering. I've used one since '05.

4. I had them elevated (on a box) too close to the light; I am almost sure of that?...probably about 15 inches away. I did a have a small fan blowing between the plants and the light. One poster (at ICMag) thought it was 'wind burn'. I don't remember anybody reporting that before. They never came closer than 15 inches from the light. I switched to an HPS bulb; thinking it MIGHT be UVb related?..but, the situation never improved and got progressively worse.

5. I drives me nuts, not knowing for sure...:wtf:...cause...I'm starting again..:smokin:...week #3 veg...film at eleven...:jointsmile:

[Dutch Pimp]

The plant first showed just a part of a white leaf about 6 days into flower and then as the plant grew 2 more leaves showed the same trait once they reached their current level of whiteness they just progressed as normal. I thought I had spilled something as well, but as I saw new leaves grow after the first with the same thing I knew it wasnt that. It's sensi seeds super skunk.

are the white leaves....white; top and bottom?..(undersides?)...if so? it's probably genetics...and I wouldn't sweat that.....since there's nothing that can be done about it.

[maro69camaro]

Hi Rusty

1. It looked snow white in person...and like I said earlier..it progressed very slowly over a 3 week period...during 2-5 week, 12/12 flowering cycle.
The fan leaves were still green, on their undersides & and white/shriveled on top?

2, The temps at ground level & light level, never went over 83 degrees...and I don't spray leaves.

3. I do use a moisture probe to check for the next watering. I've used one since '05.

4. I had them elevated (on a box) too close to the light; I am almost sure of that?...probably about 15 inches away. I did a have a small fan blowing between the plants and the light. One poster (at ICMag) thought it was 'wind burn'. I don't remember anybody reporting that before. They never came closer than 15 inches from the light. I switched to an HPS bulb; thinking it MIGHT be UVb related?..but, the situation never improved and got progressively worse.

5. I drives me nuts, not knowing for sure...:wtf:...cause...I'm starting again..:smokin:...week #3 veg...film at eleven...:jointsmile:

400watts and you bleached it from 15", i dont know about that. i get mine to about 12"-13" from the plants never had a problem unless they get closer then that. and you got to burn alot of leaves to stop growth, sounds more like some kind of a lockout.

[Dutch Pimp]

400watts and you bleached it from 15", i dont know about that. i get mine to about 12"-13" from the plants never had a problem unless they get closer then that. and you got to burn alot of leaves to stop growth, sounds more like some kind of a lockout.

I agree with that possibility....:thumbsup:...I just can't figure out how; that, nute lockout would only affect the top/middle fan leaves, first...only?..Look at the pics...the bottom leaves are unaffected...:wtf:

I only gave them one dose of 10-52-10 during this period. I've used this nute/dose since '05...without any problem?...and I flushed several times, trying to improve things.

Thanks... for your input...'69er...

[BobBong]

Aphids?

[metalarclemon]

Weez is right, Dutch. Yours are yellow. not white. And yours almost looks like heat damage, or spraying the leaves and lowering the lights, (steamed leaves) or stabbing the roots with a stake. (perhaps a bamboo one, lol). Did you at some point accidentally brush the plant against the hot bulb?

OP's photo's look like they never had chlorophyll to begin with.
Never seen light bleaching from UV light, but there was no mention of UV light anyway...
With a vented hood, (implying a glass barrier) a broken bulb envelope is ruled-out...
Only thing it leaves me with is genetics. Or...someone is dicking with us and doctored their leaves or washed-out the yellowing with photoshop. :wtf:
Can we get a good picture of the white while still on the plant?

Sorry those were the only pics I got of them. The leaves other than the color were perfectly healthy and were'nt dry, crispy, wilted or anything. Also I don't "dick" with people for no reason and those photos are untouched. While on the plant they were on one branch, one torwards the bottom, skip a few up with no probs then one more and up a few and the last one. The reason I posted this was because I could find nothing like them in any books I have or anywhere on the net, and figured as a help to others stressing about something like this not to worry and actually get some pics of these strange things up where people can see.

[Rusty Trichome]

Unwad your panties a tad. Twasn't an accusation, it was simply another possibility, given the info we had in front of us.

The reason there is a troubleshooting form, is that quite a few growers that are having problems or annomalys don't know what info the troubleshooters require. The forms address most pertinant information, and streamlines the diagnosis process. Most of the time it's a common problem that's easily diagnosed. Sometimes not.
Were you to properly fill-out the form, prehaps we would have a broader sense of the conditions leading up to all this, and maybe there is something that will catch the experienced eye of someone with a firm understanding of growing cannabis. Or not. :jointsmile:

[metalarclemon]

I'm as calm as they come, what would suggest that I wasn't? anyhoo isn't the form you speak of the one I used in post #1? what did I leave out? Anyway no harm no foul, like I said just spreadin the word. If I had come across this post while I was searching for the issue, I would have felt much better. so hopefully it will help someone else some day.

[Faddenator]

I could've sworn that all this "mysterious" whitening was just known as albinoism (As I said in my last post)... I don't think its some groundbreaking discovery or anything. I've seen it happen to a few leaves on one of my friend's plants.

Anyway, the correct troubleshooting form is filled out, just in an unusual way. Instead of simply filling in the answers, you erased the questions and answered them that way. Little harder to follow, but it will work.

That being said, Rusty - perhaps you need to look a little harder for the forms? I filled one out in great detail for my Canoeing/Clawed leaves thread and you asked me a few questions that the form had already answered... I know you don't have all day to keep referencing things, but its a little frustrating to have to keep answering and re-answering questions. Even more frustrating though, is getting no help whatsoever. I'm always grateful for any responses, so in that regard, thank you.

Everyone screws up once in a while. Just my $0.02 :jointsmile: