The most widespread and long-lived of phytotelmata are treeholes in hardwood trees. A female Toxorhynchites mosquito sipping flower nectar Photo P. Lounibos Mosquitoes use plants in diverse ways besides as water containers for their young. For example, mosquitoes of the genus Mansonia deposit their eggs in masses on aquatic macrophytes, such as water hyacinth or water lettuce. Their larvae and pupae obtain air from the root systems of these host plants, so the immature mosquitoes don't need to swim to the surface. The close associations of larvae and pupae of permanent-water mosquitoes with aquatic plants afford them some protection from predators.
Mosquitoes also use nectar as a source of sugars metabolized to sustain flight.
Although only female mosquitoes consume blood, both sexes regularly visit flowers. Mosquito control in gardens depends on many factors, including the sources and annoyance levels of the biting pests. Plant pots, drainage dishes, and bird baths should be cleaned out or overturned if mosquito larvae and pupae are present. If your garden includes a pond, larvivorous fish and the removal of leaf litter will reduce mosquito production. However, if you live near salt marsh habitats, your only option may be to apply repellent.