Interesting article here about how horsetail herb is good for a fungicidal on roses and applied topically on human skin:
http://www.motherearthliving.com/mother-earth-living/down-to-earth-an-ancient-herb-for-a-modern-garden.aspx#axzz30E3gxfZu
Medicinal Benefits and properties / actions of the Horsetail Herb. Wildcrafting, Wild Plant Foraging. Disclaimer - The herbal information on this blog is intended for educational purposes only. It is not the intention of the blogger to advise on health care. Please see a medical professional about any health concerns you have. Disclaimer - These statements have not been evaluated by the FDA. The information on this blog is not intended to prevent, diagnose, treat, or cure any disease.