Date of this Version
Wiggans, C. C. & Hoppert, E. H. (1940). Spraying tree fruits (University of Nebraska Agricultural Experiment Station Circular No. 36 rev.)
The production of sound, clean fruit is unquestionably one of the major problems facing the modern fruit grower. Culture may be neglected and pruning delayed for a time but the omission of sprays for even a single season demonstrates their absolute necessity. This applies equally to the commercial grower and to the farmer or gardener who has only a few trees.