How do I save my trees from these pests?
I have what I believe are Whiteflies, possibly aphids, and bagworms showing up in my Hackberry, Bois'd arc, and Pecan trees. The trees are giving off huge amounts of sticky sap that rains down everywhere. The Hackberry trees have lost almost all their leaves. The curled up crunchy leaves are completely covered with white lint looking bugs. I have treated many of my trees with the Bayer Advanced Tree and Shrub Protect and Feed. Now I have started noticing the Whiteflies on my Hydrangeas, and bagworms on my Elephant ears. My trees are much larger than the recommended dose amounts listed on the Bayer label, so I used one complete bottle for every 2 trees except the Pecan trees; I used one whole bottle for one tree. I am noticing more and more whiteflies each week. How long before this treatment starts to work? Will I have to treat everything in my yard? Am I using the correct treatment?