Hi, my name is Deb and I live in Aurora, Colorado. We have 1 apple and 1 peach tree and have experienced them being consumed with bugs inside when we finally pick them. We are wondering if their is a simple way, as we are truly amateurs when it comes to this, but would like to enjoy our fruits. 1. Is there a good time to treat the trees once they have blooms? 2. We have purchased Bonide Eight Yard and Garden but I was told to not use it until there are bugs. I see they also have a Fruit and Tree Guard which is for the fruit after it has produced. 3. Most importantly, is there a proactive preventive treatment that can be used?