go to the black ant nest near the trash heap and clean out all the food bits they've hoarded itl get worse when u get closer but as u destroy the food you'll notice it get better and better something about the ants trampling and getting stuck in 500-1000 pieces of food causing a massive amount of collisions to occur. if ur not geared or don't have a way over there don't fret, you can just build some stairs up to the deck on the house to by pass the haze. once ur over by the trash heap there arent any aggro bugs just black worker ants and a roly poly look for a puddle of water filled with food typically u can just follow the ants. hope this helps.