HELP! I need to identify a non-toxic (preferrably natural ingredient) way to kill the japanese beetles that infest and eat up my beautiful hollyhock plant every year. I would like to know of a good product that will get rid of them and keep them away. Thanks. BTW, if you're interested in purple-black flower hollyhock seeds, let me know. Come autumn I have more than I know what to do with and all my friends and family now have more seeds than they know what to do with too.
Managing Adult Japanese Beetles from the Univ of Kentucky Entomology department. Reading through, it seems like hand-picking might be the way to go:
