Mosquitoes breed in standing water, so eliminating standing water on your property reduces your risk. Areas like rain gutters, tree holes, old buckets or tires with stagnant water are breeding sites. Although you may take steps to clear your property, you are subject to the actions - or inaction - of your neighbors, not to mention wetland areas in your community. 1 "EVALUATION OF THE EFFICACY OF 3% CITRONELLA CANDLES AND 5% CITRONELLA INCENSE FOR PROTECTION AGAINST FIELD POPULATIONS OF AEDES MOSQUITOES," L. ROBBIN LINDSAY, GORDON A SURGEONER, JAMES D. HEAL and G. JAMES GALLIVAN. Department of Environmental Biology, University of Guelph. Guelph, Ontario N1G 2W1 Canada Journal of the American Mosquito Control Association. Copyright 1996 by the American Mosquito Control Association, Inc.