Use the liquid BT, 1tbsp per quart.

Use the liquid BT, 1tbsp per quart.

That's exactly what I'm using, but when spraying them the spray beads up and rolls of the leaves like a freashly waxed car. You know what I mean? Tried a little dish soap, didnt do much. I just drenched them real good most of the worm were in the center of the head.

Sounds like you aren't using a fine enough spray or are over-saturating them. It is never a good idea to "drench" a plant with anything. Wastes the product and can do more damage than the pest does.

It doesn't need to be applied to the point where it runs off, you just need to lightly mist the leaves. It doesn't kill on contact, they have to eat it. So a light mist is all that is needed.

Dave

I never spray my collards with anything & have had worms only one time.
I grow them year around & the plants last about 4-5 years, if I keep them watered when I water the tomatoes & beans.

Well last year i had no problem with worms on the collards, this year is a different story though.

I know ther are such things called "stickers" to help sprays stick, and I have read that Bt is stable mixed with insecticidal soaps. Soap would probably help with the waxy, repellant nature of the collard leaf... This isn't something I have tried, and I don't really know more about stickers, just that people talk about them from time to time. I would say that time is running out on those catpillars, but I've seen the darn things in early spring after freezing nights. I swear they are indestructable! Ironic, given their fragile looks.

I'm also wondering whether, given the fact that it is October, the caterpillars will give up of their own accord soon.