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Never seen before leaf condition....!!!!

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Heatwave

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Hello Guys and Gals...here are some pictures of very few of my top leaves on the bud...... first turning purpilish colour and then brownish colour as seen in the pics....been told it could be zinc deficiency or potassium deficiency...would so like to hear from you guys if any have seen this before or even not....about what it could be.....
 

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indoor grow? outdoor? water PH? nutrients added (if any)? you have to give more info if you want others to help solve your issue. We can all guess by looking just at a picture but someone may have a solution if the conditions are explained.
 
Boron deficiency can appear when it’s really dry. Could maybe be that. Though it’s rare.

What is the Ph levels and what medium are you using ?
 
Hello Dilvish,
Outdoot grow
I am in grow bags with potting soil
Ph of water with nutes 6.5 to 7

The only 2 plants (of 8) with this condition are the Mendo Breath

I use a combination of the following nutes (the values are per liter of water)

Nitrogen N 66g/kg
Phosphorus P 45g/kg
Potassium K 239g/kg
Magnesium Mg 45g/kg
Sulphur S 71g/kg
Trace Elements:
Iron Fe 1700 mg/kg
Manganese Mn 400mg/kg
Boron B 500mg/kg
Zinc Zn 200mg/kg
Molybdenum Mo 50mg/kg
Copper (Cu) 30mg/kg

Plus :
Nitrogen N 155g/kg
Calcium Ca 190g/kg

Plus :
Contains Potassium ( K ) : 287 g/Kg, Phosphorus ( P ) : 227 g/Kg
 
pH should be 6 - 6.5 and mix it up - meaning apply 6.5 one time then next time 6.4 or 6.3, i.e. alternate. Your pH is too high and that is causing a lockout of some nutrients.
 
Seems to me like a trauma, meaning either something really hot touched those leaves or something damaged them. That’s not a sign of anything.
 
Hey 9fingers...i think that mabey you got it..... how about this.....had a robbery at my house...and so the cops notified me they were coming to take fingerprints ....well..so i got up really early and covered all my 8 outdoor lady plants with black builders plastic....(to keep cops eyes away from plants)...so the plastic was almost touching the lady buds...this plastic was over the plants for around 6 hours...with the sun beating down on it.....with temps of 80 F....could this have done this damage to the upper leaves
 
That kind of restrictive heat would likely affect them all but if they are different strains it is possible the 2 you mention had trouble with the "bagging".
 
Did you by chance water them on a hot sunny day outside? The leaves look like light burn I've seen when strong light hits water droplets on leaves. Just a thought.
 
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