Typically, both male and female mosquitoes feed on nectar and plant juices, but in many species the mouthparts of the females are adapted for piercing the skin of animal hosts and sucking their blood as ectoparasites. In many species, the female needs to obtain nutrients from a blood meal before it can produce eggs, whereas in many other species, it can produce more eggs after a blood meal. A mosquito has a variety of ways of finding its prey, including chemical, visual, and heat sensors.[36] Both plant materials and blood are useful sources of energy in the form of sugars, and blood also supplies more concentrated nutrients, such as lipids, but the most important function of blood meals is to obtain proteins as materials for egg production.[1]
I don't recall reading anything specific about the larvae's importance in aquatic biomes, though, so the anti-mosquitocide guy may have a point.
I believe orchids are one flower that is mostly pollinated by mosquitoes.
Only a relative few would cause wide spread extinction.
Your "anti" article: Gawker.
Yeah, I think we're safe.
https://www.theverge.com/2015/9/9/9296815/national-geographi...
Am I just making this up/misremembering it?
Edit: found a few sources.
Pro-mosquitocide:
http://www.nature.com/news/2010/100721/full/466432a.html
http://news.nationalgeographic.com/2016/02/160207-mosquitoes...
Anti-mosquitocide:
http://io9.gizmodo.com/what-if-every-mosquito-on-earth-went-...