Effect of Insecticides on Tuber Yield and Control Recommendations for 1947

Experiments with some of the newer insecticides were conducted by the North Dakota Agricultural Experiment Station and the State Seed Department at Grafton, North Dakota, during 1946. Particular emphasis was given to testing the effects of various insecticidal dusts and sprays on insect control and tuber yields. The treatments applied and resulting tuber yields on the per acre basis were tabulated. A table on the spraying or dusting schedule for insect control was included