Thanks for the information. I have heard the rule that you are never supposed to use a tree that has ever been sprayed as well, but I have also heard that it is okay after so many years. My next question is, how do you get a tree that has never ever had any pesticides on it? Even if I were to go to a green house and buy a sapling I'm sure pesticides and fertilizers would have been used on it.
The farmers around me plant soybeans that have pesticides and fertilizers coating the bean before it is even planted, and soybeans are a main ingredient in a lot of commercial chinchilla foods. If it isn't okay to give them twigs from a tree that may have been sprayed years ago, why is okay to give them foods that have been produced using pesticides?
I don't want to do anything that could hurt my chinchillas, but I also don't understand how it would be possible to avoid every pesticide ever in the modern world. Everything uses them.