I use Neem oil on my trees. They have had white fly infestations once before and I sprayed them with a 2% solution of Neem oil and that took care of it. I sprayed them twice, about 2 weeks apart and the results were pretty impressive. If you spray your trees for this particular problem (white flies), make sure to spray in the evening, after they are out of the sun. And get the underside of the leaves as well as the tops. Also, shake up the solution frequently in your sprayer, as the Neem oil is , well, oil - and we all know how well oil and water blend. I love this product - it is a natural, non-chemical answer to keeping my trees happy and healthy. One bottle makes lots of gallons of spray, so it's economical as well. It is actually good for the plants, and won't harm them. If I have leftovers from spraying, I just pour it on the tree watering ring and let it soak in. It strengthens the tree systemically, making it harder for the white flies to come back and establish themselves on the leaves. You can use it as a preventative also. The smell is not as bad as chemicals and it feels right to be using something natural. Happy gardening!

My order shipped out the same day I placed it, I had it a few days later I had some questions about Neem, I left a message and Cindy called me back within the hour and was able to answer my questions. Already placed my next order!