A basic setup involves a wooden pole, a copper spiral winding upward, and a grounding spike or buried wire
https://shaneweca624.theglensecret.com/electroculture-for-pollinator-friendly-gardens-attract-bees-and-butterflies
A basic setup involves a wooden pole, a copper spiral winding upward, and a grounding spike or buried wire, positioned near crops to capture atmospheric ions and gently influence local electrostatic conditions.