Materials matter: copper resists corrosion and conducts well

https://www.scribd.com/document/1031631349/Copper-Tape-Wire-or-Rods-Choosing-Materials-for-Electroculture-Gardening-159241

Materials matter: copper resists corrosion and conducts well, while galvanized steel is cheaper but heavier; choose durable wood or bamboo for masts, and avoid treated lumber that may leach chemicals.