This is what I am using at the moment - very successful. Just fill the moat with pharmaceutical grade (Vons is fine) Mineral Oil. Cheap and totally effective without pesticides:
http://forum.honeyflow.com/t/latest-ant-moat-for-2017/10744?u=dawn_sd
This is what I am using at the moment - very successful. Just fill the moat with pharmaceutical grade (Vons is fine) Mineral Oil. Cheap and totally effective without pesticides:
http://forum.honeyflow.com/t/latest-ant-moat-for-2017/10744?u=dawn_sd