Little Yellow Moth "thingies" on all my plants.. what are they?

I've noticed these small, no bigger than 1/2 in. yellow moth (i'm guessing) things fly off my plants and trees whenever I shake or spray them. They look to be a buttery yellow with little or no markings? I'm having issues with inch worms on my Red Maple and White-marked Tussock moths, yesterday I used BT on the Maple and on the Loquat tree. These things are coming off my Mexican palms & sago, roses, everything.

What are they?

 

I wish someone would respond to this quote. These worms are disgusting and there are lots of yellow moths around here in San Mateo,CA on our deck.