Since Aphids only do lay eggs in the fall, and not in large clusters such as you have, what you have is not Aphid eggs. this may be an egg mass of a beneficial or possibly one of the innocuous insects or maybe one of the pests. We may not know until the eggs hatch.
Your best place for identification would most likely be your local University of Connecticut USDA Cooperative Extension Service office. Put that leaf in a sealable plastic bag and take it in.

Here is a link that might be useful: UCONN CES

Looks like the ovisac of one of the cottony scale insects, to me. Have you 'disemboweled' one, just to see what was inside?

Call your extension office and see if you can email them some images.

And each ovisac contains a hundred or more eggs!

Agreed -- looks like cottony scale eggs: