Foliar silica spray during flower? THCFarmer
Dec 19, 2021 The extra psi helps blast the PM off and then the excess water residue will dry and evaporate off because once again there is organic alcohol in the juice. Milk or soap can leave a residue but the natural alcohol which kills the PM just evaporates right off after. Zero residue. You can spray it all the way to harvest day.
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