A while back we had a brief look at the possibility of simply excising mosquitoes from the ecosystems in which they are most problematic, but now an Australian scientist is trying a different tack in order to curtail the spreading range of the dengue fever virus: mosquitoes infected with a particular bacterium are less able to host the dengue virus and live only half as long, so introducing them into dengue zones should see them rapidly out-compete the dengue carriers. Sounds a lot less drastic than trying for wholesale eradication of a species…