*5.1.1.1 Narcotic effect of CO2*

Bees treated with a mixture of air and CO2 for 5 min have shown to stop their movement and went motionless but regaining their activity, once it was left for 30 min. The same experiment when repeated with only air for comparative study showed that only air did not anesthetize the bee. Thus, it can be concluded that the CO2 at even low concentrations is detrimental to honey bees since they have a narcotic effect [1].
