Wtf is this on my leafs?!

Buddernugs

Buddernugs

Well-Known Member
Ok guys iv seen this a few times but it looks like it’s slowly spreading I have a desk top microscope iv spent hrs looking at effected leafs no pest’s my microscope is 120x if their their I should have seen them I’m week in week 5 flower in coco dtw 2x during day fetigation 700-750ppms (.5) running tap water as base cal mag,h202 (5ml per gal 24%), drip clean sensi guard (silica) and a and b coco tek bloom.... I don’t do any foliar feeding so there’s no moisture on the leaves I have an auto watering system so theirs no water above the coco
 

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week 5 of flower what a shame i hope you get it figured out try removing the worst leaves i had a similair problem but in week 7 and i barely made it to harvest before they started dying it wasnt pests either not sure what happened
 
Possibly a potassium deficiency, which typically will show up and leaf edge and tip burns (more significant than nute burn). Also common in flower due to the plants increased needs for both potassium and phosphorus. Do you normally run that much hydrogen peroxide in your mix?
 
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