This document describes techniques and devices capable of disabling or killing hard-bodied insects, including wasps and hornets, to two, three, or even four or more feet. In some cases, the techniques and devices use an existing pressurized-air device, such as a CO2-powered rifle or pistol, either intended for BBs or pellets, in .177, .20, .22, .25 and so forth calibers. Other pressurized-air devices can also be used, such a PCP (pre-charged pneumatic), spring, gas piston, single and multi-pump pneumatic, electric-motor-powered spring-piston, and similar pressurized-air devices.