Here is another reason to prune your roses this time of year. I keep finding more bugs that were hiding. This is a disgusting bug called Cottony Cushion Scale. I don't know how the move. I've never seen it happen. Scale is usually a barnacle like insect that sucks the juices from a plant. These are just gross. They're squishy so you can brush them off or blast them with a hose. I just read about their life cycle and am even more grossed out. Ick! Either blast them or spray with an insecticide or cut off the branch and dispose.