A little history, that plant was in the first big grow I attempted. When I came back from vacation it had so many spider mites the crown of the cola looked like a spider web, the temps were close to 100 and the fungus gnats were having a feast on the roots. I didn't think twice about it, I went and got some insecticide and sprayed them, and did it again three days later, and then again at a week. Neem oil will not hurt your plant and will rinse off with a few mistings of the plants. Looking at that picture, I think I did the right thing, well not THE right thing that would have been weekly maintanance to avoid the problem in the first place, the right thing under the circumstances. VV