Full Download Cantaloup Mosaic Investigations in the Imperial Valley, 1949 (Classic Reprint) - U.S. Department of Agriculture file in PDF Online

Excerpt from Cantaloup Mosaic Investigations in the Imperial Valley, 1949The lower aphid population duringthe l9h9 season was reflected in greatly decreased mosaic damage. The infedtion-perpentage in melon plants was much lower then.in 19l8, end'most of the plants that were infected remained healthy until the crop was practically mature. For the Valley as a whole, less