I just read an article which mentioned a great resource the Missouri Botanical Garden has created. It is a garden pest and problem guide which lists over 200 common garden problems that all gardeners may face. Included in the list are options to solve these problems.The solutions begin with chioces that are simple and safe first. Chemical control methods are listed after the organic, less invasive choices. Here is the link for you to use; http://www.missouribotanicalgarden.org/gardens-gardening/your-garden/help-for-the-home-gardener/advice-tips-resources/pests-and-problems.aspx
I believe it is helpful to share other resources. I think it is always best to get more than one opinion. As always, we welcome any questions about your gardens. We will do our best to answer those questions or offer solutions to problems you may have. I hope you find this information helpful.