The scent gland secretions of snakes are thought to repel predators, but few predator species have been tested for responses to these exudates. Domestic cats (Felis catus) were tested for responses to scent gland secretions of the gray rat snake (Elaphe obsoleta), or to choloroform extracts ...
and screens to render area unattractive to insects. This helps to repel insects and prevent entrance into building. All outdoor applications to building must be limited to spot or crack-and-crevice treatments only, except for applications to building foundations, up to a ...