Is Preen safe to use around butterflies? I have a butterfly bush and it has attracted a huge number and variety of butterflies.
Thank you for your question. This used to be an easy answer but, as the article on page 3 of the following Extension newsletter indicates, it’s more complicated now: https://bladen.ces.ncsu.edu/wp-content/uploads/2013/09/Bladen-Botanical-July-2013-1.pdf?fwd=no You will need to read the label, or research the exact configuration to be sure. I am unaware of any Preen product which is harmful yo butterflies, but there may be Preen products developed since 2013 that pose a risk. Hope this is helpful.