Please help! I have bugs by the thousands attacking my magnolia tree. The tree is approximately 17 years old. Last year, my tree had what I thought were mealy bugs (see picture 1). I treated what I could by spraying them several times with a solution of water, alcohol and Dawn dish detergent. What I couldn’t reach, I used the hose on the jet setting and dislodged them from the branches. This year, the undersides of the branches are covered with these grey bugs. (See pictures 2 and 3.) In both cases, the bugs excrete a honeydew like substance and are attracting other insects such as flys and bees. I so hope I don’t lose my tree, it is such a beautiful tree, especially in the spring. Any advice would be most helpful. Thank you.