The Claw

[willoco]

Am in last few weeks of flowering and have got the top 2 foot with clawed and dark green leaves . Been using bio bizz bloom 3 ml per liter . Any one got help on what to do ? Will this reduce overall yield ?

Thanks

 

[Chem Dawg]

I've been seeing the same with biobizz. But I'm pretty sure it was over watering/feeding .

 

[Kingrow1]

Strange sort of looking, what soil, lights, temps and all that, cant tell wether nutrient def or underwatered or sumthing.

 

[maps84]

How many times a week do you feed water? how many do you fertilize? what soil mix are you using? what's your run off PH? what's the final PPM of your solution before feeding?

 

[luciferateme]

ive got the same thing willico on my skunk11, three of the tops are fine ut the one that grew up to the side of the light (blocked) is showing the same as what you have, mines getting a lot of feed lately so ive acked off a touch, so in my case i hit a sweet spot with the nutes. give it a drink of water and then milder nutes next watering and see what that does.
lu

 

[Brick Top]

'The claw' is caused by nitrogen toxicity, too much nitrogen, and that destroys the plant's vascular system. It will affect yield .. more so if it shows up earlier in flower than late .. but it will cut it some.

 

[willoco]

soil: palgron bat mix
Lights :250 Watt hps
Temp Day : 24c
Hubmity : between 55 and 65
Feed : once a week 5 litters of ph'd water or when pot is really light

 

[willoco]

ive got the same thing willico on my skunk11, three of the tops are fine ut the one that grew up to the side of the light (blocked) is showing the same as what you have, mines getting a lot of feed lately so ive acked off a touch, so in my case i hit a sweet spot with the nutes. give it a drink of water and then milder nutes next watering and see what that does.
lu

Cheers lu : will let go on the nutes next watering for the claw , The other two are fine just few fan leaves going yellow but at that stage of the grow now

 

[Chem Dawg]

Mis read my post.. Besides, I'll never argue with brick.

 

[Kingrow1]

I couldn't argue with bricktop, seems like sound advice and your leaves do look quite green, you'd expect at least one or two nitrogen deficient leaves at this stage i suppose. So what fertilizers are you using and what is the bat mix? 5 litres a week sounds like big pots, how tall are them plants now and how far from the lights, 24c is not too bad but could be too high for some strains. Just some other ideas.

 

[willoco]

'The claw' is caused by nitrogen toxicity, too much nitrogen, and that destroys the plant's vascular system. It will affect yield .. more so if it shows up earlier in flower than late .. but it will cut it some.

Cheers B-Top will cut out on the N for her and see how goes

 

[IVIars]

One more for too much N

 

[maps84]

If the red pigmentation in the stems are not a strain treat, most chances are it's a K def, this is a symptom along with the claw. Once you have this Macro upset everything starts to fuck up. I'd try plain PH'd water with a drop of super-thrive and h2o2 to flush them real nice. Wait until the soil dries quite a bit and then restart the feeding program 2 or 3 days after.

 

[willoco]

I couldn't argue with bricktop, seems like sound advice and your leaves do look quite green, you'd expect at least one or two nitrogen deficient leaves at this stage i suppose. So what fertilizers are you using and what is the bat mix? 5 litres a week sounds like big pots, how tall are them plants now and how far from the lights, 24c is not too bad but could be too high for some strains. Just some other ideas.

Looks like over N now alright , Just using bio bizz bloom 3 mil per liter and bat mix pH: 5,8 and 6,2 EC: 1.4 and 1.6 soil by http://www.plagron.nl/Index_uk.htm
good soil for growing as havent had to use any nutes untill pre flowers showed

 

[maps84]

There you go:

"Potassium (K)

Potassium is involved in maintaining the water status of the plant and the tugor pressure of it's cells and the opening and closing of the stomata. Potassium is required in the accumulation and translocation of carbohydrates. Lack of potassium will reduce yield and quality.

Potassium deficiency (K).

Older leaves are initially chlorotic but soon develop dark necrotic lesions (dead tissue). First apparent on the tips and margins of the leaves. Stem and branches may become weak and easily broken, the plant may also stretch. The plant will become susceptible to disease and toxicity. In addition to appearing to look like iron deficiency, the tips of the leaves curl and the edges burn and die.

Potassium - Too much sodium (Na) displaces K, causing a K deficiency. Sources of high salinity are: baking soda (sodium bicarbonate "pH-up"), too much manure, and the use of water-softening filters (which should not be used). If the problem is Na, flush the soil. K can get locked up from too much Ca or ammonium nitrogen, and possibly cold weather."

Whatever you do, flush first and do not try to over do a Macro nute in the next feeding, just to get it right!!

 

[willoco]

There you go:

"Potassium (K)

Potassium is involved in maintaining the water status of the plant and the tugor pressure of it's cells and the opening and closing of the stomata. Potassium is required in the accumulation and translocation of carbohydrates. Lack of potassium will reduce yield and quality.

Potassium deficiency (K).

Older leaves are initially chlorotic but soon develop dark necrotic lesions (dead tissue). First apparent on the tips and margins of the leaves. Stem and branches may become weak and easily broken, the plant may also stretch. The plant will become susceptible to disease and toxicity. In addition to appearing to look like iron deficiency, the tips of the leaves curl and the edges burn and die.

Potassium - Too much sodium (Na) displaces K, causing a K deficiency. Sources of high salinity are: baking soda (sodium bicarbonate "pH-up"), too much manure, and the use of water-softening filters (which should not be used). If the problem is Na, flush the soil. K can get locked up from too much Ca or ammonium nitrogen, and possibly cold weather."

Whatever you do, flush first and do not try to over do a Macro nute in the next feeding, just to get it right!!

Thanks Maps84 for the info all help appreciated , Would hate for it to go tits up now ::

 

[maps84]

Np man love to help! just in case you can wait for more opinions so you have different points of view before treating. they don't look that bad yet

 

[freddiemoney]

Brick Top has the right advice for you.

Judging from the pics, the outer margins of your leaves are turning mushy and almost blue, not burning and dying like a K def.

 

[maps84]

Brick Top has the right advice for you.

Judging from the pics, the outer margins of your leaves are turning mushy and almost blue, not burning and dying like a K def.

This is because that's an advanced stage. I bet that if you let her be you'll have dead burnt margins and necrotic wounds. The thing is that when N is overdone the leaves will dry and begin to fall off definitely showing toxicity which is not the case here. Also Fruit and flower set would be inhibited or deformed.

 

[Mr.Therapy Man 2]

I useually get the CLAW when Ive over fertilized,mostly nitrogen