Yesterday emergers kicked my butt. Huge trout were taking PMD emergers and wouldn't touch my dry.

So what is the go to emerger for a PMD hatch? I'm guessing the emergers were right under the surface since I could see the trout's back, but never their mouth, and there was nothing on the surface when the took the fly.

The dries were about a size 16 or so. Does that mean I should use a size 16 emerger?

I have the fly tying book "Emergers" but I was wondering what worked in Northern California, and in particular, the Trinity River.



Thanks!