Spiders, Spiders Everywhere

Here's one that I've never seen before.  True spiders with webbing so heavy that it could interfere with the growing point of raspberry.

On approaching the field, once notices a lot of the very top of many raspberry plants in this field under tunnels with those leaves rolled up.  Of course this sets off alarm bells that it could be LBAM, but closer inspection reveals a far heavier webbing than is customary for a leafroller.  And... lots and lots of spiders.

What would the call be to do about this?  Hard to say, readers if you have experience and/or suggestions what to do, write in and I'll post your answer.

Pics taken today of the situation posted below.

Problem seen from afar - growing point curled into a ball.

Copious amounts of webbing.

Excessive webbing unfurling from plant.

Webbing in association with spiders - one on the top of the leaf, a bigger one under.

Spider close up - anybody know the species?

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