I'll have to look into which type of Silica it provides. MC works best with the Mono-Silicic. I've heard of people using it to kill pests in the past. I've been lucky I guess. I had gnats one time & I get an occasional Grasshopper or cricket but that's about it. I don't grow outdoors & if I work on bushes or plants outside I strip at the door & straight to the shower. Not taking any chances.... lol.Have you considered using diatomaceous earth, much cheaper and supplies silicon to the plant. You can mix it into the nutes or just sprinkle it on the soil surface. Bonus is the powder kills many pests.