Pesticide supplies for the 1977 crop season appear ample for all major uses. Production for 1977 is expected to be up about 10 percent. Supplies are up somewhat more, about 14 percent, because of larger inventories held by manufacturers and distributors than last year. Manufacturers and distributors reported that prices to dealers were up 6 percent or less and prices to growers were expected to be up 10 percent or less, with lower prices for some products in abundant supply. Demand is expected to be less than supply, leaving a net surplus of 5 to 10 percent. Supply estimates are based on surveys of pesticide manufacturers and distributors. Demand estimates are based on farmers' 1977 planting intentions and data on pesticide use patterns.