I am not sure what ‘horse chestnuts’ are. Around here (Northeastern Okla) we use Osage Oranges (also called horse apples). They are a big green fruit (about the size of a large orange) off of an Osage Orange tree.
They are good for getting rid of most household insects. You just put them where you have a problem. They don’t stink, and as they ripen they just dry up and get hard.