Pest or Guest, Friend or Fo?
Why so many? Man has helped to create the problem of garden pests. In the wild, these animals are not a problem. The creatures are not presented with row upon row of delicious plants. They are all dispersed and the insects will have to search around for long periods looking for another food plant. Many of them will starve before they find another suitable plant or they may be discovered and eaten by predators. In the garden, the adult will lay its eggs on a suitable plant for the young to eat. When they have consumed that they will move along the row to the next plant. Because it doesn’t have to travel far there is less chance of it being discovered and eaten. Therefore they start to thrive.