Personally I would rely on keeping all screen doors closed rather than spiders...............
Good advice, but meal moths don't always come through an open screen door.
Mine arrived in a box of cereal purchased at a supermarket. When the box was opened, out flew a cloud of meal moths. That cloud began a years-long infestation. I sprayed pesticides and began storing vulnerable food in moth-tight containers. But they still persisted.
The only thing that finally worked to get rid of them was ..............spiders.