strange crispy tips

[dogmeat]

Plants are looking good..but when switching over to flowering...they start to die around the edges of the leaves....sorry about the horrid pics...but in the background you can see it as they get cleaer.





You can see this real well..in this top pic...what is causing this?

 

[dre86]

overfert..

 

[sproutco]

How are the plants being grown...soil, hydro,.etc? Directions for testing soil ph are in my signature below. What's the ph? What are you feeding the plants and how much? Where is the damage most occuring? On old large leaves at the bottom of the plant or more towards the top of the plant? I can not really see all of this in the pictures.

 

[Guest]

it does look like over fert, but more info would better help us to try and figure it out..

 

[Willie]

Overfert...It will just get worse...when I first started using chem. ferts., I lost an entire crop to this.
Yup, I felt stupid because I did'nt fert at 1/2 strenght as recommended by many....I used full strength... Flush with non-fert water then, watch em closely. You'll be able to tell in a few days where you stand.
Good Luck!!
Peace,
willie

 

[SouthernSmoker]

When in doubt FLUSH FLUSH FLUSH it will never hurt your plants !!!!!

 

[dogmeat]

When i water...im taking about 5 gallons of water and mixing about 7 tsps of dyna-gro bloom...this takes it to about 700ish PPM's.....then PH the water off to about 6...this takes the PPM's to about 750ish...

Its happening on the older leaves...i thought it was nute burn too.....but i was wondering if it was somthing else...could it be a postassium diffciancy...?

 

[Willie]

could be nute lockup...which is usually caused by too much fert. All that I do know dogmeat is that to me, it looks exactly like the beginning of the end of my disaster....I too tried to correct the problem by playing with different ferts...Tried calcium, magnesium, nitrogen....Only made it worse...
I ended that disaster with 1 1/2 ozs. of barely burnable buds. (tasted quite nasty)....That's out of nine plants!!....
All the early synptoms were on the new growth FIRST. My plants eventually
came to maturity with the old leaves still looking good!
Peace,
willie

 

[sproutco]

Is there calcium in your bloom fert? Dyna-grow bloom 3-12-6 is low in calcium and magnesium. If your soil is low in dolomite lime, like from not being repotted in a while, these two elements may run low. 7-7-7 is even lower in cal mag. On the other hand, if there is alot of dolomite lime in the soil and your ferts are adding cal mag, there could be a potassium deficiency like you were wondering. 2 tablespoons dolomite lime per gallon of soil will do it.

 

[dogmeat]

yea....its all hydro tho.....the dyna-gro bloom is..3-12-6...which is .5% mag...and 2.0% cal.....

do they make NPK testers? I have a TDS tester...but its a werid one....i think its the US one...hanna?

 

[sproutco]

When all else fails, get a grasp of your ph. Directions for testing soil ph are in my signature.

 

[guineapig]

I'm thinking a good solid flush......sounds like a bit too much dyna-gro in your medium?

Discontinue fertilizing immediately and instead water with plain water for a few days, using a little more water than you are used to using....

Keep us informed on the patients!!!!

guineapiggin' can you dig it

 

[dogmeat]

When all else fails, get a grasp of your ph. Directions for testing soil ph are in my signature.

Its hydro man.....ive tested the PH its at 6.....

Im wanting to find an electronic NPK tester...for HYDRO....

No soil.......i will try just using plain water...to see what happens...all of the green growth looks good...

 

[Guest]

I agree with GP....let us know how the girls do ...stay safe

 

[sproutco]

Its hydro man.....ive tested the PH its at 6.....

Im wanting to find an electronic NPK tester...for HYDRO....

No soil.......i will try just using plain water...to see what happens...all of the green growth looks good...

Cardy meters can test nitrate and potassium. They are pricey.

If your in hydro, you might add slightly more cal mag to the regular ferts. They are low. 1 teaspoon cal mag plus per gallon of water or 1/8 teaspoon of both powdered gypsum and epsom salts per gallon of water.

 

[dogmeat]

thankyou for the infos on the meters.....im gonna back off of the nutes....

we have a full cycle...so i jsut put in 2 more plants....so ive got 2 girls since end of oct...and now 2 girls thanksgiving....so im gonna back off the nutes for a few days...maybe add just some clean ph'd water...and see what happens...if it still goes...ill try using the calmag....i jsut dont wanna send them too far in the bad direction yaknow.

 

[Guest]

I use dyna grow in soil.... good stuff....

but have never tried it in hydro...

There is only one thing that effects the margins of the plants like yours and thats potassium def....

I suspect that its not over fert and reducing ferts may cause the problem to get worse....

According to my directions for recirculating hydro.... 3 tspn per gallon....

So you in fact may be under ferting them....

 

[dogmeat]

I use dynagrow on the veg side....i use dyna bloom on the flowering side....i really am thinking it is a cal defficiancy....wondering if calmag will work.

 

[dogmeat]

Well. I looked around today...no digital meters that tell you specificly the amount of nitrogen/phosphats/possasium....

I went out and got a few things today....starting wtih calmag.....in flowering...using dynagrow bloom....how much calmag should i be using as an additive...

The dude at the shop said first and formost you will see a cal/mag deff. before youll see anything else w/ dynagrow...

 

[Bozo]

really looks like nute burn to me , cal mag def looks completely diferent than your pictures .Phed water for 3 days then 1/2 the amount of what you are feeding them now?