Growers treated more fall potatoes with insecticides than any other pesticide. Just over 1.0 million acres were included in the survey and 94 percent were treated with an insecticide. Potato farmers made 6.8 million acre-treatments, using 15.3 million pounds active ingredient of pesticides. Applying pesticides in single application was the most common practice. Tank-mix applications were used in 6 percent of the time. Each region used about the same amount of pesticides not considering nematicides. Nematicide use was largely in the Western region. More insecticides were used in the Western region and more fungicides were used in the Northeast and North Central regions. However relative relationships varied with the number of acres planted by region. Treatments with pesticides ranged on the average from 1.0 to 4.9 times per season and were as high as 7.5 times in treating diseases in the Northeast. Coefficients of variation were calculated for acres treated with specific pesticides.