Mulberries leaves are usually a lot more plentiful than Ecinacea leaves. A recent research paper says an alcoholic extract of the leaves enhances the (mouse) immune system. Mulberry was shown to enhance the antibodies in the blood, and to increase the number of good "wee beasties" that eat the bad wee beasties in the body--at least of mice. They talk about Morus alba the white Mulberry(s). So eat the silkworms and harvest the leaves in Vodka for the winter!. Have you had your Pig Flu shot yet? No, I thought not! Tsk tsk. in mice.