Hi newby08, My name is Nate. Illinois deapartment of agriculture Applicator's license, Turf, Ornamentals, Right-Of-Way and Mosquito sub categories. I have 5 years experience.... and I am still learning. My best advice is Read labels 'til you can't see anymore, pick the lesco guy's brain and anyone who has more than 4 years experience.(journeyman) If you don't know EXACTLY what you are doing, and EXACTLY how to do it DON'T DO IT!!!! You can do some serious damage with the chemicals we use. Read every chemical label you can get your hands on, and it will say on the label if it is mixable with other chemicals. I would like to think I know somthing about what I am doing, but I still spend half of every winter reading and learning more about the chemicals. If you need somthing else, or have questions, you can pm me. I would rather help you than see you kill a rose by putting the wrong insecticide on it. Hope I helped.