Sierra Natural Science SNS 217 Spider Mite Control 1 Gal Grow Light Bulbs making it the most powerful

making it the most powerful in the range

while reducing problems with fertilizer-salt toxicity

Its naturally porous structure offers exceptional surface area

and robust stalk and root growth

Sierra Natural Science SNS 217 Spider Mite Control 1 Gal Grow Light Bulbs making it the most powerfulDescription Kills all mites and their eggs, ending the life cycle Safe up to day of harvest when used as directed Safe around children and pets when used as directed Safe for use with beneficial bugs when used as directed Spider mites destroy plant cells by sucking out their contents and 217 unique formula works by providing a barrier which is harmless to the plant, but fatal to the mites. 217 kills the spider mites eggs and kills the life cycle by