Mike wrote:

Does anyone have a mail order source for these, preferably online? Anyone
have experience treating these with copper salts to keep fungus at bay?

Mike
Do a Google search for "bird netting" and you will find hundreds of
vendors. I bought mine online from Park Seed Co. About the same price as
all the others. I wouldn't try to parachute with the netting though. You
would go down like a rock tossed out the aircraft door.

George