Mason Bee Attractant : Made in the USA of All Natural Ingredients! Completely safe for the Mason Bees! Stop application once the first bees arrive. “Rocky Pond’s Mason Bee Attractant” encourages the bees to return to the nesting structure you have provided and to make a nest in the structure. With the Mason Bee attractant sprayed on the front of your nest, it should increase completed nesting tubes by double and a little more.
