Tussock Moth Caterpillar Information Wanted

Hubby saw and killed about 50 of these guys today we are in DCVR.

Wondering what is a normal amount each year per acre?

We also try and do what we can on our own so how far up the tree do you need to spray we have five acres so want to do what we can on our own.

Thanks for the information.

We heard that many areas along the Platte and such are being hit hard. Would like to know if we have anything to worry about.

Is this the next pine beetle?