So, it's that time again...spring time and quickly entering into the summer soon. I have noticed a scorpion in one of our light fixtures and it's time to get to work and seal cracks and such, and I know I can put DE outside and inside of our home where needed. I have been reading that neem oil is particularly effective on scorpions, ants, etc. and have thought about using it in the yard. Another one I have heard about is cedar wood oil. From time to time we let the chickens roam the yard to keep some weeds and bugs down. Will neem or cedar wood harm chickens? Are there any essential oils that will hurt chickens?