The three categories of losses were actual production cost, projected gross income, and state agribusiness economy. Actual production cost losses were calculated on the basis of middle- level management cost for preparation and planting; costs of harvesting and ginning were not included The per acre production costs and total countywide direct production losses are shown in Table 1
Gross income losses were calculated from the seasonal average price for cotton (62.4c/lb of lint.599/ton of seed) and the average yield per acre (231 lb of lint, 0.18 ton of seed) .Count wide gross income losses were calculated by multiplying diseased acreage by the per acre seasonal gross income ($161.96) for seed and lint (Table1).
Impact on the agribusiness economy of Texas was calculated by multiplying gross income losses by 3.88 .the number of dollars generated in the agribusiness economy for every dollar of cotton income generated. The potential loss of income to the agribusiness economy of Texas from Phymatotrichum root rot of cotton in Falls Country for 1976. Calculated from remotely sensed data, Was $1,993,079 (Table 1).