how do you get rid of bag worms (two of our evergreen trees died)?

A Yahoo search for "bagworm control" (include the quotation marks in the search box) yields 259 results. If you do the same search, and are willing to spend a little time exploring, I'm sure that you will quickly find the information you seek.

Good luck with your search.

If only a few small trees or shrubs are infested, picking the bags off by hand and disposing of them may afford satisfactory control. This approach is most effective during fall, winter or early spring before the eggs have hatched.

When many small bagworms are infesting evergreens, an insecticide may be needed to prevent serious damage. The best time to apply an insecticide is while the larvae are still small (less than 1/2-inch long). In Kentucky, this is usually in June. Small larvae are more vulnerable to insecticides, and inflict less damage. Carefully inspect susceptible landscape plants, especially evergreens, for last year’s bags. Young bagworms are harder to see; look closely for the small, upright bags which have the appearance of tiny ice cream cones constructed of bits of plant material.

I think there is a spray you can get to spray on your trees to prevent bag worms. Ask your local lawn and garden center. I do know however if you take the bag worms off of the tree, throwing them on the ground will not do. They will just inch their way back onto your tree. You need to dispose of them in a sealed bag and put them in the trash.

They can be picked off by hand and put in a bag and tired up. It will cost a lot to have someone spray them.

There's not a lot you can do. A friend of my had to cut her trees down they were so bad.

Diazinon and Malathion have been known to kill my wurm relatives, however they are dangerous chemicals. Maybe try something more eco friendly like the last link.

Cut off the affected areas and use an insecticide.

spray with 80%water15% dishsoap 5% car oil mixture its what we use on are fruit trees

When I was young my parents used to take a propane torch and burn them. Worked quite well.

We pick them off and put them in boiling water.