Before revision: That is the point when pest damage (and the benefits of treating the pest) exceed the cost of treatment .Handbook of Pest Control, Mallis, Arnold, 10th edition, Hedges, Stoy, Editor.
After revision: Economic Injury level is the pest population level at which crop damage exceeds theof pest cost of treatment .Handbook of Pest Control, Mallis, Arnold, 10th edition, Hedges, Stoy, Editor.