ladybugs are a useful way of eliminating their natural prey: spider mites and their eggs. I recently used 1500 ladybugs on my small 10 plant crop and they failed to do anything useful.

spider mites can also be eliminated by raising the humidity in your grow room.
spider mites can also be eliminated by spraying a mixture of dish soap / neem oil (hydro store), and water on your plants once every few days. This method is extremely effective.

Depends on your pest, but most pests can be taken care of or prevented with natural methods. Remeber, always start with natural methods before trying extreme unnatural methods.
deftdrummer Reviewed by deftdrummer on . Organic Pest Control Question What are the different types of organic pest control? I hear ladybugs are a good way to control unwanted pests. But, I don't know much about ladybugs. Do they only eat other bugs? Rating: 5