Need some experienced growers advice urgently

[giz2k14]

Feedback would b appretiated and sorry to hijack ur thread giz.

No worries mate i think you can foliar spray but you do it just as lights go out not 100 percent sure tho

 

[Greenhouse;save]

Cheers bro

 

[giz2k14]

It looks like a magnesium deficiency to me. I would use a tablespoon of epsom salts to every gallon of water.

How long does it take for a mag def to get out if hand I give them Epsom just now but the problem was much worse this morning also had a leaf with brown spots and canoeing upwards and another with just brown marks towards the tips

 

[Greenhouse;save]

Exactly the same as wot I'm experiencing the now although I'm sure heat stress is my culprit as well as mag def.(heavy sigh).

 

[giz2k14]

Exactly the same as wot I'm experiencing the now although I'm sure heat stress is my culprit as well as mag def.(heavy sigh).

same here mate it's gone worse over night and it's affecting my bud leaves

 

[Greenhouse;save]

I've just flushed one of mines (with nuites) to c if that will help.I will no one way or anouther in a couple of days.

 

[scarecrow77]

Hey my girl is 24 days into 12/12 and 15 days of actual flowering she's is in 20 litre pot of bio biz all mix she's being fed 1ml grow and 2ml bloom per litre of water total 6 litres when watering to get nice run off I do this every 4 to 5 days also she's under 600w hps this problem started right at the top of the plant on the main bud the leaf tips where yellowing from the tip in ward now I just checked her this morning and found all this yellowing here's some pics hope some one can help View attachment 3201955View attachment 3201956 View attachment 3201957 View attachment 3201958 View attachment 3201959 View attachment 3201960 View attachment 3201961 View attachment 3201962

It looks to me like cal-mag def...biobizz nutes are lacking in calcium magnesium

So is it possible to foilar spray a mag solution straight on to the foliage.I think I'm suffering the very same thing but I have already watered mines(10 mins ago) so could I proceed and foilar spray?

no.

 

[giz2k14]

It looks to me like cal-mag def...biobizz nutes are lacking in calcium magnesium

no.

how would I supplement calcium now if I have already given magnesium I have searched the web but cannot find anything

 

[giz2k14]

I've just flushed one of mines (with nuites) to c if that will help.I will no one way or anouther in a couple of days.

ok mate let me know and I will also let you know if I see any improvement
l

 

[scarecrow77]

how would I supplement calcium now if I have already given magnesium I have searched the web but cannot find anything

Buy cal-mag in your grow store..and feed through the soil..it's the only way I give it if needed...

 

[giz2k14]

Buy cal-mag in your grow store..and feed through the soil..it's the only way I give it if needed...

Yes but already giving magnesium won't adding more cause mag toxicity

 

[scarecrow77]

Yes but already giving magnesium won't adding more cause mag toxicity

How much and in what way did u apply it

 

[giz2k14]

one teaspoon Epsom salt per 2 liter water total 6 liters watering the soil

 

[waterdawg]

It looks to me like cal-mag def...biobizz nutes are lacking in calcium magnesium

no.

Yes you can, well let me rephrase that, i did and it cleared up with in a week with leaves turning all green. The ones that are rusted never got better. I used light (1/2 teaspoon) per liter of epsom and soaked the plant at lights out. Worked great and plants loved it. They were in a hydro setup so watering should not effect it.