Deficiencies?

Would this be a Mag deficiency? I am growing organic. Soil is FFOF. 3 weeks into flowering. Lower leaves are showing yellow tips. I am in a 5 gallon pot. I fed 2-8-4 Gaia Green at 1 tps per gallon at day 1 of flower. I have been watering .75 gallon every other day. Just got done doing a defoliation couple day ago.

Potassium deficiency

hotrodharley said:

Potassium deficiency

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Thank you!! I was gonna wait for the this week to end to feed them again, but I guess I’ll feed them now

What's up with the upper leaf in the first pic? Is that white stuff residue from a foliar spray?

TrichDaddy said:

What's up with the upper leaf in the first pic? Is that white stuff residue from a foliar spray?

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Good eye it sure looks like WPM to me. Take a look under a scope to make sure it is but sure does look like the dreaded WPM. Hope you can get it straightened out before you get it really bad

It’s in second pic too on leaf to left of the hand

Treesomewanted77 said:

Good eye it sure looks like WPM to me.

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Yeah PM was my first thought too. Hopefully it's just residue!