OmegaWiki it is relevant to find as many translations as possible. This is what makes the concept work. The French word démoustication has as its definition "The control or reduction of a mosquito population in a certain place". This definition has me check if "muggenbestrijding" exists in the Dutch language. It does and I can even find pictures of people shooting with air guns on mosquitoes..
Having only three expressions for mosquito control is ok, as it is there with a definition in two languages. It is important to know the word. When the same concept appears starting with a different language we will always be able to merge the two DefinedMeanings.