Certified GKH Gardening Expert
This should be done by a professional. Although, you can purchase the hormones and use them on your own, you will be subject to strict laws. Not only that, some of the hormones can be carcinogenic in the amounts that you would be working with them in. Some of them are detrimental to fish, or bee populations, and the process may not work if applied at the incorrect time.
Here are some articles that will help: