Some Crepe Myrtles Are Not Blooming

Question

We have 16 Crepe Myrtle trees in our yard. They are mature trees (4 yrs) and usually produce many vivid flowers. This year only a few trees have bloomed; of those, 2 trees were prolific but the 4 or 5 others that bloomed only had one or two clusters. The two trees that bloomed are now covered with aphids, the leaves are dark and I am afraid we will lose the trees. Help.

Answer 1

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