Need a bit of advise here

I’m about 4 weeks into flower and one of my plans has started getting thes marks on the fan leaves next to the bud, all marks are in upper leaves what is this?

Can provide more photos iff needed

Hello is anyone there?

they look like they need a good feed, what you feeding them on whats your ph temps RH water EC ?
when did you last give um cal/mag, growing media ?

Feeding them biobizz bloom just now only 0.5ml per l ph of solution is 6.5

what are they growing in

Biobizz all mix soil

It looks like you allowed your PH to drift !

You mean the ph of the soil? Will it make it to the end of flower do you think?

I see. Heat Stress and pH issues. This is worth the look.
http://catnews.org/FREE Pot Books/Marijuana Garden Saver [2005].pdf

Likely heat stress but could be boron or nutrient issues

Leesmith12345 said:

Feeding them biobizz bloom just now only 0.5ml per l ph of solution is 6.5

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just had a look at the dosage for biobizz bloom, 2ml-5ml @litre, your starving them to death

bobtokes said:

just had a look at the dosage for biobizz bloom, 2ml-5ml @litre, your starving them to death

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The ppm coming out the bottom is 1400 ppm

Herb & Suds said:

It looks like you allowed your PH to drift !

Click to expand...

How are you pHing your nutrients, and what are you adjusting them to?