It's spraying the leaves or foliar feeding....no need, stop doing it, it isn't needed...except maybe for small seedlings or clones that do not have a root system yet and you live someplace very, very dry...You can easily create more problems than you solve doing this "sprying" or spraying...can you say mold and mildew?...just water and feed them through the roots! In all things....Keep it simple! The more variables you add, the better the odds it will screw everything up! I have never sprayed anything on my plants ever, and they grow just fine...water when they need it...feed them when they need it, thru the roots and soil...learn to read the plants and they will ALWAYS tell you what they need! Also, all things in moderation...if you miss a feeding, or watering, do not try to "make up for it" by doubling the amount of nutes the next time...people actually do this!!!!!!!!!!!