I posted this question on another topic. Maybe some of you can give me a more detailed answer. I'll be dusting my chicks this weekend. But I've seen liquid and liquid concentrate of Sevin. Is the dust/powder better or does it stay on the chicks longer? Is there a difference in the ingredients? I have asthma so I have to wear a dust mask while doing this. If it bothers my asthma and breathing wouldn't it effect the chicks? Thanks for any info you can reply with.