John F. Chisholm and C. M. Manning v. J

In 1965, the appellants C. M. Manning and John F. Chisholm entered into a joint farming venture near Malta, Idaho. Respondent
E. I. du Pont de Nemours & Company was the manufacturer and respondent J. R. Simplot Company, hereinafter called "Simplot,"
was the seller of a weed killer called "Lorox," which was purchased by the appellants for use on their potato field. The appellants
decided to use Lorox after attending a weed-control meeting, arranged by a representative of Simplot, which was held at Chisholm's
place of business in November, 1965. At this meeting, which other growers also attended, a representative of the manufacturer
presented slides illustrating the effectiveness of Lorox; he also discussed proper usage of the chemical. The appellants planted their seed potatoes from April 25 to May 12, 1966. The pre-emergent herbicide Lorox was applied to
the east portion of their farm on May 15 and to the west portion between May 21 and May 23, 1966. Sprinkler irrigation commenced
on May 27, 1966; the field was irrigated in sections by moving irrigation pipes daily from south to north, irrigation of the
entire field being completed after twelve days, on June 8, 1966. The potato crop did not prosper, and in August, 1966, the
field was abandoned because it was not economically feasible to harvest the crop.