Pest organisms do not think of themselves as pests. Insects, mites, nematodes, pathogens, weeds, rodents, birds, and others exploit human efforts to grow food, feed, and fibre crops, and they can thrive on these crops before and after harvest. Our monocultures, even if it is just a handful of apple trees, are a paradise for an insect that measures the world by the distance to the next apple or the next tree. As long as the youngest and smallest larvae can reach food and shelter, as well as a place to develop and to mate, pests will continue to compete with humans for the food that the nature provides (1).