Can you spray bug killer on cannabis plants when the lights are on?

It's generally not recommended to spray bug killer on cannabis plants when the lights are on, as this can increase the risk of leaf burn and stress to the plants. The active ingredients in pesticides may also become more concentrated under light, potentially harming the plant. It's best to apply insecticides during the dark cycle or when the lights are off to minimize any negative effects. Always follow product guidelines and test on a small area first if possible.