Anything that has Bifenthrin:
https://www.amazon.com/dp/B00DGUY2LO...v_ov_lig_dp_it
Several applications. Spray around the perimeter, not in the dead areas.
Note Chinch bugs are not active until mid-late summer.
They usually start at the edges of concrete, because of the heat.
Put something like this down now to kill eggs and control other pests like sod webworms.
https://www.homedepot.com/p/Sunnilan...4026/100533911