hey there Plantings, canna boost is humic acid, so you shouldnt spray it on the plant, if you want to spray something on the plant try rhizotonic and calmag, calmag has much better uptake by the leaves and rhizotonic has plant growth hormones on them. just do what you've been doing to dilute them. humic acid, i wouldnt spray on the plants at all, it's really for the root zone. keep using it that way. problem is humidity when you're spraying, can lead to mold. you can spray throughout the grow , after all it rains outside right? but if you do spray throughout , try a technique called "bud washing" to wash all that off. Hope this helps ! 🚀