Illustrative image shows a cherry tree, undated. Homeowners have been encouraged to plant stone fruit trees as such a measure would help to protect solitary bee species. (NewsX/Bee)
Picture shows Dr Charles van Rees in undated footage. He is an assistant research scientist and member of the graduate faculty at the Odum School of Ecology at the University of Georgia in Athens, Georgia, in the United States. (NewsX/Bee)