" The Ultimate Guide to Natural Farming and Sustainable Living Permaculture for Beginners." Skyhorse Publishing. " Health and environmental impacts of pyrethroid insecticides: What we know, what we don’t know and what we should do about it." Équiterre. “ Borders in Your Garden: Friend of Foe?” Texas A&M Agrilife Extension. " Companion Plant Chart." Keweenaw Bay Indian Community. " The irritant receptor TRPA1 mediates the mosquito repellent effect of catnip." Current Biology. " The Repellent Activity Test of Rosemary Leaf (Rosmarinus officinalis l) Essential Oil Gel Preparations Influence on Aedes aegypti Mosquito." Journal of Physics: Conference Series. " Plant-based insect repellents: a review of their efficacy, development and testing." Malar J. ![]() " Mosquito Repellent Plants." Iowa State University Department of Entomology. " Wilderness Medicine (6th Edition)." Elsevier Science. " Effectiveness of plant-based repellents against different Anopheles species: a systematic review." Malaria Journal. 2007.Īsadollahi, Amin, Mehdi Khoobdel, Alireza Zahraei-Ramazani, Sahar Azarmi, and Sayed Hussain Mosawi. " Pest Repellent Plants for Management of Insect Pests of Chinese Kale, Brassica oleracea L." International Journal of Agriculture and Biology. " Toxicological Profile for DEET (N,N-DIETHYL-META-TOLUAMIDE)." Centers for Disease Control. One of the best things people can do to hold down mosquito populations in particular, she advises, is to eliminate any standing water, which is where mosquitoes breed, so you may want to rethink that bird bath. ![]() But who would want a bug-free garden, anyway, when bugs are food for so many birds and other beneficial critters? The goal should be reduction, not elimination. Bodie Pennisi, a professor and landscape specialist at the University of Georgia's Griffin campus, says it's unclear how many plants would be needed to effectively repel insects and how close together they would need to be planted. Please realize that this probably isn't enough to make your garden totally insect-free. One study on the efficacy of plant repellents explains, "This repellency of plant material has been exploited for thousands of years by man, most simply by hanging bruised plants in houses, a practice that is still in wide use throughout the developing countries." Plants have also long been used in "crude fumigants" or applied in oil formulations to skin and clothing. ![]() The many globules on the underside of rosemary leaves are one of the best examples of this. ![]() High temperatures can cause the globules to become volatile, evaporating the essential oils and turning them into vapors. The smell of some herbs and flowers, resulting from the distribution of tiny globules that contain essential oils, can help to ward off bugs. This may not be as effective as conventional repellent formulas, but it will help somewhat. Even just crushing the leaves in your hands and rubbing the oils onto your skin while you're working in the garden can deter some insects from hovering and biting. As a bonus, you can use most of them to make your own natural bug repellent. In this article, you will learn about 12 plants that could help you manage the insect population in your garden. They don't realize that they can repel bugs-at least partially-using the power of plants. To prevent their itchy and painful punctures, many people slather themselves in chemical insect spray (DEET, one of the worst offenders, is neurotoxic and has been detected in groundwater). Insects have one of the most important ecological roles in nature, but you must admit that bites from mosquitoes, gnats, flies, and no-see-ums are highly annoying.
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