Hello and thank you for your question. The webbing in your images is most likely from a caterpillar known as the fall webworm. These are a common caterpillar in our area with two generations a year. The first in May is usually small and goes easily unnoticed. The second is in August-October and larger, garnering more attention, hence the name "fall" webworm. 

It is difficult to see in your images if any caterpillars are actually in the webbing. They may have already left the webbing, in which case this was left over from the first generation and the small black dots you are seeing are actually just frass (bug poop). If you do happen to see caterpillars inside the webbing, this batch is just a little off their natural calendar. You can use a stick or pair of loppers to cut open the webbing and allow predators to get in and eat them, or cut off that section of the branch entirely and dispose of it.

If you have any additional questions please feel free to send them our way!

Thank you!  I’m on it…great intel!!

You’re welcome!