Fig. 1. The cumulative distribution from right to left of the total area treated with the indicated megagrams of copper to each square kilometer for the 6-yr period from 1993 to 1998. Data were calculated on a per-section basis, and the data for the following number of geographic sections are illustrated: rice, 1414; walnuts, 1889; and either cherry, nectarine, and/or peach, 1900.