Mosquitoes are among the most dangerous inspects around. They are not to be confused with poisonous spiders. Spiders, call up any species, are part of the arachnid family. They are easily distinguishable by their eight legs and they, of course cannot fly like many insect species are able to do. The ability to fly over long distances has, of course, helped certain inspect species to survive and thrive.
One migratory line of species so very important for the survival of pretty much all species, including homo sapiens, is the bee. It is a necessary part of the food chain. Homo sapiens welcomes its presence once it has overcome its ignorance of the bee sting. In most cases, it does no harm to any life-sized creature. All the hard-working bee is trying to do is protect itself and its colony and survive. The sting only gets administered as a form of defense.
And sadly for most bee species, once the sting is given, the bee dies. Such are the mysteries of nature. Here is another mystery then. Why would a small creature like a mosquito wish to feast on blood? Why not another food source then? And so it goes. Migratory mosquitoes will seek out any life source from which it can feed (on blood). But there are those species of this annoying insect that are quite harmful, making it imperative for those communities close to these creature breeding grounds to make full use of organic mosquito control.
Migratory species bring with it diseases, as harmful and deadly as malaria. Yes, with the right treatment, people can survive. But the ordeal is far too painful for any victim to bear. Organic poison is preferred because it is by far more effective than conventional chemically-laden poisons.