Can someone please tell me what this is?

I have three ladies, they are all in the ground next to each other, 6f tall & are flowering. They've all been getting Logic Bloom A+B- But this plant which is a (Super Silver Haze x WW/Herijuana) is the only plant with these spots on the leaves, it started from the bottom & it has worked its way up about 2.5ft. Can someone help!

it deffintaly bugs man spray with some impesticide

Damn 88 views in 30 mins & only 1 reply????

either that or k deff witch i highly dobout because the tips arnt screwed up check under the leaves man.

Looks like mites. Soap and water. Spay under side of leaves. Just a drop or two in spray bottle dont use antibacterial just reg. dish soap. Put plastic on the ground to keep soap out of soil. Make sure you spray the hell out of them.