Help! What's wrong with my lilac?
I bought this Albert F. Holden lilac bush this spring and put it in the ground immediately. I am in Colorado (zone 5b); the afternoon temperature is ~90-100F now. I water my lilac everyday with about half gallon of water. Fertilized with bone meal once. The plant is in full sun. I don't see too many bugs flying around it when I go watering it.
My questions are: 1) Look at its leaves! Is this caused by pests? If yes do I need to treat it? With what? 2) It hasn't grown much since planted. What can I do to make it grow stronger? I am not "in a hurry" for it to bloom or something, but I hear bushes that do not become strong enough during the year will not survive the winter in Colorado. I sure don't want that to happen.
Thanks a lot. Any suggestion is highly appreciated.