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LostRoss
21-08-08, 07:19 AM
The guy I usually ask about this stuff (Organix) has gotten himself banned somehow (anyone know how?) and so was hoping someone could identify what deficiency this is -

https://www.thctalk.com/gallery/data/506/thumbs/21_Aug_08_-_2.jpg (https://www.thctalk.com/gallery/showphoto.php/photo/6794)

https://www.thctalk.com/gallery/data/506/thumbs/21_Aug_08_-_3.jpg (https://www.thctalk.com/gallery/showphoto.php/photo/6795)

https://www.thctalk.com/gallery/data/506/thumbs/21_Aug_08_-_1.jpg (https://www.thctalk.com/gallery/showphoto.php/photo/6793)

Thanks.

lkdj2003
21-08-08, 04:00 PM
He was banned for flamming forum members and Crazy x seeds and our site and if that wasn't enough he pm'ed me under a different name threatening my business and me.. tut tut

He is best off out of it! https://www.thctalk.com/cannabis-forum/images/icons/icon12.gif

Looking at those pic's mate it is really hard to see but i would tend to have a look under your leaves for any thrips or other mites because it looks like mite damage to me in those pic's. Have a read Here (https://www.thctalk.com/cannabis-forum/showthread.php?t=4604)

The_Hunter
21-08-08, 06:08 PM
Organix was banned?

LostRoss
21-08-08, 06:42 PM
I very much doubt that it is mites as the yellowing is just on the growth tips and I have had the problem with plasticy leaves with every grow I've had, just this is the first time that it is the most serious problem.

I have checked for mites anyway and can't spot any signs.

The yellowing is a little hard to see with the HPS bulb making everything yellow so here is some pics when the light is off -

https://www.thctalk.com/gallery/data/506/thumbs/21_Aug_08_-_5.jpg (https://www.thctalk.com/gallery/showphoto.php/photo/6802) https://www.thctalk.com/gallery/data/506/thumbs/21_Aug_08_-_4.jpg (https://www.thctalk.com/gallery/showphoto.php/photo/6801)

bigballs
21-08-08, 06:51 PM
Does this only affect the top bit of the plant?
If it is only the top, is there a possibility its heat stress from lamp or reflected hotspots, as in general your plants look fit as mate.

LostRoss
21-08-08, 07:03 PM
Well the yellowing is at the growth tips but doubt that it would have been caused by the lamps, the plasticy leaves may have been caused by heat but when it showed up at more or less the same time as the yellowing I assumed they were related, perhaps not.

walrus
21-08-08, 08:38 PM
Well the yellowing is at the growth tips but doubt that it would have been caused by the lamps, the plasticy leaves may have been caused by heat but when it showed up at more or less the same time as the yellowing I assumed they were related, perhaps not.

I would be interested to know whats happening with your plants mate as this has just started with my plants, all the tips are going really light green.

LostRoss
23-08-08, 06:27 AM
Well the tips have grown out a bit and it looks like the veins are remaining green which I believe is a sign of zinc deficiancy, could someone comfirm this for me and perhaps gve some advice to fixing this problem?

Thanks

acehigh
23-08-08, 07:42 PM
looks like excessive dry heat mate the way the leaves are curling up at the sides and yellowing of the leaves....only my guess as ive got the same probs.Cheers

LostRoss
23-08-08, 10:34 PM
Could be, my veg room is a little but too hot (planning on improving extraction as soon as I have some money) but the flowering room is a little cooler so hopefully it will fix itself, although I wasn't aware that yellowing tips were related to heat, guess I'll just have to wait and see.

acehigh
23-08-08, 11:12 PM
are the leaves brittle? try folding 1 of the fingers in half......if it snaps then the air is to hot n dry which will cause your leaves to yellow...im no expert but im avvin same probs as u

LostRoss
23-08-08, 11:25 PM
Nope, folded fine, but it could just be that their not bad enough to be that brittle, but I still think the yellowing tips are to do with a nute deficiancy as it is at most growing tips, not just the ones at the top of the canopy.

I am about 80% sure it is zinc deficiany as the viens remain green, but I'm not sure what to add to res. I have the full canadian express nutrient range, but not sure which to add more of for more zinc.

LostRoss
23-08-08, 11:35 PM
Just in case it helps here is what they have been fed so far -

http://www.image-upload.net/files/8989/Feeding%20schedule.JPG

lkdj2003
29-08-08, 03:51 AM
It could be an Iron or Sulfur Def mate, as those two do give very similar symptoms. If i was you i would flush the plant's with three times the pot size with plain water that has been stood for a few hours and then let them dry out for a few days and then start off at half the dose you where giving them before of nutes and see how they go then mate. https://www.thctalk.com/cannabis-forum/images/icons/icon12.gif

LostRoss
29-08-08, 11:37 AM
They are actually in a hydro flood and drain system, hense the constant nutes.

If it does look like a deficiancy to you then why reduce the nutrients?

Thanks for advice

lkdj2003
02-09-08, 02:52 PM
They are actually in a hydro flood and drain system, hense the constant nutes.

If it does look like a deficiancy to you then why reduce the nutrients?

Thanks for advice

In that case mate i would flush your system with plain water and start off with half strength nutes and see how they go.

It's not the def itself you should look at but what has caused it, now this can be many factors like the plants using more of some micro elements than others which can cause nute lockout so the plant can't get certain micro elements and if you add full strength nutes you will only up the dose of the said already high micro element which is locking out other micro elements due to the ph rising or very rarely dropping.

On the otherhand it could be that you have slightly over fed them which again can lock out other elements which can lead to showing Def signs due to being locked out.

So you see it's not always a case of the plants showing a Def that you need to up the feed, it's mostly the other way around i find.

This is why so many new people to growing go wrong and they would add more nutes to an already said problem.

But lets not forget that it could just be a regular say Nitrogen Def and the plants are hungry but you can guess this by how much nutes the plants have been given. i.e if you have been feedling them low doses then you would have an idea why they are showing the said Def. But if you have been feeding them say medium to high amounts of nutes then look the other way before rushing in and feeding more nutes.

I hope this helps mate. :toke:

LostRoss
02-09-08, 08:10 PM
Well it seems to have fixed itself somehow. They have had one hell of a growth boost and the new growth all looks fine (and some lovely looking flowers forming :D).

It might have been the leca's pH or something but whatever it was seems to have subsided. I did notice that when they were in veg (drip feed system) the rockwool got an unusual amount of fungi growing on it (have been told it is normal and is because light was hitting the rockwool). Could this have had anything to do with it?

The EC dropped over the past 2-3 day so I think that they actually need a little more nutes (had been stable for this grow). This is the first grow where I am taking it easy with the nute. They are getting a solution with an EC of 1.0, previous grows they would be getting twice that strength by this point.

Think what I have to do is to increase the air flow and wash the leca better for the next grow and see if it comes back.

I will have a better look at them tomorrow when the lights are on and get some pictures taken.

Thanks for you advice ikjd.

stoneroz
03-09-08, 04:02 PM
ross,
I'm glad your plants sorted themselves out,
but, if it makes another turn for the worse,
you could try adding some magnesium and nitrogen, the def. that caused green veins can be fixed by adding magnesium, and the yellow tips can be because the plant is taking nitrogen from those leaves and transporting it to the new growth, so some nitrogen might be in order.
That might help, if it don't then at least you can eliminate that as being the problem. good luck.

LostRoss
03-09-08, 07:19 PM
Well here are the pics. In the last one you can see the damaged growth in the middle.

https://www.thctalk.com/gallery/data/502/thumbs/03_Sep_08_-_1.jpg (https://www.thctalk.com/gallery/showphoto.php/photo/7066) https://www.thctalk.com/gallery/data/502/thumbs/03_Sep_08_-_2.jpg (https://www.thctalk.com/gallery/showphoto.php/photo/7067) https://www.thctalk.com/gallery/data/502/thumbs/03_Sep_08_-_3.jpg (https://www.thctalk.com/gallery/showphoto.php/photo/7068)

lkdj2003
04-09-08, 02:28 AM
Cool that is good news mate, they are looking very nice indeed mate and budding up lovely. :weed:

The algae growing on your rookwool block is normal mate, nothing to worry about. Just try not to have any light leaks into your nutes or that can cause problems to. https://www.thctalk.com/cannabis-forum/images/icons/icon12.gif

LostRoss
04-09-08, 05:05 AM
Umm, what kind of problems? My rez is right underneath my plants, mostly blocked by the shelf but there is a few millimeters of a gap that the light could get through, it has been this way since I started growing (about 8 months ago).

Hopefully these might finish without any further problems and I might be able to enter or perhaps even win something from the POTM comp, tho as all 4 are in the same tray I would have to wait until I am harvesting and leave the best for last so I can get a couple of pics of it by itself (last time I had to hang a bedsheet to block out the others and that was a bit of an ordeal).

A man can dream :D

lkdj2003
04-09-08, 12:38 PM
Umm, what kind of problems? My rez is right underneath my plants, mostly blocked by the shelf but there is a few millimeters of a gap that the light could get through, it has been this way since I started growing (about 8 months ago).

Hopefully these might finish without any further problems and I might be able to enter or perhaps even win something from the POTM comp, tho as all 4 are in the same tray I would have to wait until I am harvesting and leave the best for last so I can get a couple of pics of it by itself (last time I had to hang a bedsheet to block out the others and that was a bit of an ordeal).

A man can dream :D

The light can cause problems with your nutes by letting all sorts of nastys grow in your tank due to the light not to mention light can damage your nutes especially grow nutes (Nitrogen). This is why it says on alot of nutes to always store them in a cool dark place. https://www.thctalk.com/cannabis-forum/images/icons/icon12.gif

Duck tape, mylar, black white sheeting or something similar is good to use to seal any seams. But make sure to have an air stone in with your nutes if you haven't already to aerate them. https://www.thctalk.com/cannabis-forum/images/icons/icon12.gif

Sealing your tank also helps lower humidity alittle due to lowering the vapouration.

I would defo get your girls in the POTM comp (https://www.thctalk.com/cannabis-forum/showthread.php?p=84658#post84658) mate, you never know you way well win first prize... :leaf: :headbang:

Lol, i bet that was a pain in the ass hanging a bed sheet in there, i know its hard enough putting one on the bed straight. https://www.thctalk.com/cannabis-forum/images/icons/icon10.gif

LostRoss
04-09-08, 07:39 PM
Yeah it was, nearly knocked them over quite a few times too :omg:

Will get myself down to B&Q and have a look for a cealed container for a new rez, thought that a see through one would be better so I could see exactly how much was left .ect

Thanks again for advice lkdj2003

lkdj2003
05-09-08, 01:48 PM
Yeah it was, nearly knocked them over quite a few times too :omg:

Will get myself down to B&Q and have a look for a cealed container for a new rez, thought that a see through one would be better so I could see exactly how much was left .ect

Thanks again for advice lkdj2003

No prob's mate and best of luck with it. :leaf: