I know it starts with a D and ends with an earth lol... but I forgot the spelling. My question is, how would you apply a product like this to battle against flea's/ticks/slugs/snails? Should you broadcast this type of product on a lawn using a spreader or drop spreader? Should you just apply this product to beds with your hands? I just received an order of 4 fairly large bags of this stuff and am wondering how to correctly apply. How often should you apply such a product? Every time it rains? I"m curious on how to use this product the most effective way. THANKS!!!!!!!!