<li><strong>Mineral oil or liquid soap</strong> A small quantity of either one of these will disrupt mosquito larvae at the surface of the water. This can be effective in residential [[Rain Barrels|rain barrels]], but requires regular application.</li> | <li><strong>Mineral oil or liquid soap</strong> A small quantity of either one of these will disrupt mosquito larvae at the surface of the water. This can be effective in residential [[Rain Barrels|rain barrels]], but requires regular application.</li> |