Doors and how bug get in? Have you ever noticed the abundance of flying bugs near your front porch door, it’s the light? Its not just the flying insects but spiders love to hang out near the abundant food source. So if you switch to a yellow light the bugs will reduce in numbers. This is actually a IPM or Integrated Pest Management solution to reducing pesticide in and around your home. You will notice I said reducing the amount of pesticide because you may still have to use it judicially on key areas of pest concern.