>>3731087true, but its not a poisonous like kill you insecticide, it fucks with the circadian rhythm and basically makes bugs awake longer when night predators get them. 99% of the things humans injest as performance enhancers or to get high, are things meant to kill attackers.
Its like using dutch-hyper threading on weed or tobacco plants. The plants think they are under attack, so they produce more thc or nicotine to combat the infestation.