I harvest this every year from the creek area and add it to foliar teas that i use. Works like a charm! Nettle, horsetail and comfrey are plants that are medicines for plants. Don't ask me how. They have been used for a long time by organic gardeners and prior to the conventional agriculture methods used today! Good luck!Your PM battles will be a thing of the past, IF you spray at least once a week with Horsetail tea.... Everyone who's started using, is now a convert and promoter... Cuz, it works beautifully and completely. There is NO need for anything else. Just my 2cents. -Live Love
https://www.rollitup.org/subcools-old-school-organics/635394-horsetail-tea-tutorial-my-pm.html