Fir Tree Pictures What Is This Webbing On My Fir Tree?

What is this webbing on my fir tree? - fir tree pictures

Be affected, the 7-foot trees in front of my house (Kentucky bluegrass) seems to be. The tape is white and embrace things Twiggy needly sheet. I looked and I see nothing moves. What remedy is needed? Here's the picture:

http://picasaweb.google.com/aureol/DropB ...

Thanks