As you're preparing your yard and garden for warmer weather, it's important to protect them from unwanted pests. While there are a great many insects that are vital to the success of your yard (i.e. bees), there are some that are detrimental to your plant and grass growth. That's why it's important to take proactive measures and look into having oils applied to your trees and shrubs. However, there are many questions that come with the use of horticultural oils. See below for answers to some of the most commonly asked questions regarding the use of horticultural oil in your yard.