Aluminum cutworm collars - any problem?
We have a problem with cutworms. I've been making collars for the plants out of aluminum flashing. I have seen some discussion of a connection between aluminum and Alzheimer's disease. I have eliminated aluminum cookware and anti-perspirants for that reason. Is there any problem with aluminum cutworm collars contaminating the soil? Maybe I should paint them, to prevent soil contact and oxidation?