I sometimes wonder why God made mosquitoes. They’re so… annoying! No one enjoys getting bitten. It’s more than just the never-ending itch—they carry some very nasty diseases such as malaria, yellow fever, and chikungunya. Even here in the U.S. we’re at risk of West Nile, dengue, viral encephalitis, and now zika.
My Facebook feed is suddenly overflowing with lists of plants that supposedly repel mosquitoes. Just plant these flowers and herbs and your yard will be pest-free! Or, as one post on Pintrest claimed, “Plant a Mosquito Control container so you can sit and unwind in the evenings.” Unfortunately, anything that simple raises a red flag for me. Can controlling mosquitoes really be as easy as planting marigolds and lavender? It took some research to get past the hype, but I eventually found some scientific studies that look at this question.