Hard shell Pests represent an interesting issue related to pesticide and the proper selection of a long lasting residual is required. Hard shell Pests tend to harbor outside the home and can be found easily under patio stones, around fire pits, the foundation of your home and in trees. Both predatory and prey these pests have a formidable defence mechanism in a solid exoskeleton that protects their nerve endings from pesticide applications. Applications should be completed on the exterior using a product with a 6-8 week residual to ensure plenty of contact and cleaning. Applications should be focused on the cracks and crevice areas around foundation areas, doors, windows, lights, signage and ventilation. Treating the sunny side of the house with a heavier application will have very effective results.