Maybe they can force the builders to install fake Lawns on anything built after 2005, That should help some.
I seen a city do something similar on a tract built a block from the coast, seems they installed wood fences but the termites started to destroy the fences in the first homes almost as soon as they were sold, so the city made them install those plastic fences even in the already sold homes that were 2 years old at that point.
