You must have right to defend yourself (from humans and from nonhumans), and mosquitoes and other animal also must have the right to defend themself (from humans and from nonhumans). However, this is not to be done by eliminating populations, or by starting by attacking all of the animals/plants.

Animal also might attack other animal/plants for food also will be needed though, including human and nonhuman. (And then, if there is an attack then also will be the defense.)

Humans should stop damaging the environment/world (including the parts of the environment/world which are harmful to humans). Many human hopefully should be having less children too, in order to reduce future population; that is better than committing suicide or by having a war. (While, some other animal (and possibly some plants too, but not human (at this time)) are endangered species and might need to have more children.)