“...but it also warned people to be careful about the products they buy overseas.”
Speaking of overseas products. A few years ago, yellow jackets had set up a huge nest in a drop cloth I had neglected to put away. The bug spray I used hardly touched them, so I picked up a different brand at the local HW store.
It was from Taiwan and had a crude drawing of a hornet on its back with an X over each eye. I think the name of the product was “HOT!” Anyway , I sprayed once into a group that was flying around, and BAM! Knocked them right out of the air. Killed the whole nest with just a few more sprays.
The ingredients weren’t listed, at least in English. It was all Chinese lettering except for the “HOT!”
About 35 years ago I got some hornet spray that killed any wasps or hornets immediately on contact. I wouldn’t be afraid to go to a hornets nest with that stuff because it was amazing. They just froze in place. You can’t find it now though.