I hope you stomped all over the ones on the ground
For branches I can't reach, I blast the tents open with jet water setting on the garden hose nozzle. Usually I see the birds going after them afterwards. If the tent falls on the ground, then I can deal with them.
I wouldn't recommend using Raid and other chemical poisons because then the predators can't get them or can be affected. I don't often use Bt and definitely not on a big tree because then the spray goes everywhere, and Bt would kill the butterfly larvae that hatch in my butterfly garden.
For branches I can reach, I just clip off the tent and branch (though that may not work with such a severely infested tree). Tightly close in a plastic bag and toss in trash. I guess I would burn them if I could.