. Circular. Agriculture; Agriculture -- United States. 10 NEMATODE ON POTATOES, ETC., IN NEVADA. In. figures 6, 7, 8, 9, and 10 are shown the results of gallworm injury on tlie peacli, tlie grape, the willow, the fig, and cotton. These plants are all distinctly susceptible to gallworm injury and may serve to indicate the presence of tliis worm if it occurs abundantly in the soil. Figure 11 shows the enlargements on the roots of a cowpea caused by the nematode. These enlargements are characteristic and need not. Fig. 9.—Roots of the fig, shovring enlargements caused by the nema- tode
. Circular. Agriculture; Agriculture -- United States. 10 NEMATODE ON POTATOES, ETC., IN NEVADA. In. figures 6, 7, 8, 9, and 10 are shown the results of gallworm injury on tlie peacli, tlie grape, the willow, the fig, and cotton. These plants are all distinctly susceptible to gallworm injury and may serve to indicate the presence of tliis worm if it occurs abundantly in the soil. Figure 11 shows the enlargements on the roots of a cowpea caused by the nematode. These enlargements are characteristic and need not. Fig. 9.—Roots of the fig, shovring enlargements caused by the nema- tode gallworm. The fig is very susceptible to the attacks of this para- site and, though when the roots are severely infested the tops may continue to grow when conditions are favor- able, in times of drought or in cold weather the diseased plants suffer severely. (After J. C. Neal.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Bureau of Plant Industry. Washington, D. C. : U. S. Dept. of Agriculture, Bureau of Plant Industry
Size: 1382px × 1808px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubj, booksubjectagriculture
