Probably dust
They are poison. They are supposed to kill moths, so you tell me.
Chikorita can learn poison powder when its level 7 or somethin near 7 OK thanks bye.. hope it helped..
Arsenic.
ya if it is swallowed in bulks
Baby powder is a poison (talc) that can cause organ failure and death.
weepinbell learns vine whip sleep powder poison powder toxic
melamine
yes
Rat poison does indeed dissolve if it is in powder form. This does not mean that it looses its potency though.
Iocane powder.
No. The powder is scales that cover the membrane of their wings. The powder itself is not used to fly, but it helps to protect the membrane underneath. Touching a moth or butterfly's wings will not prevent it from flying, as long as you are gentle.