. Circular. Agriculture; Agriculture -- United States. Fig. 5.—Roots of cucumber, shov/i;:g en- largements caused l)y the gallworm. Nearly all other common garden plants are similarly attaclced. There are many thousands of the worms in the nodules upon such a root system. (After Kati Marcinowski.) Fig. 7.—Roots of the cow-pea, showing enlargements caused by the gallworm. With the exception of one variety (the Ironcowpea) this plant is very susceptible to the gallworm, and the use of susceptible va^ rieties as green-manure crops in peach orchards and in rota- tions just preceding cotton in the
. Circular. Agriculture; Agriculture -- United States. Fig. 5.—Roots of cucumber, shov/i;:g en- largements caused l)y the gallworm. Nearly all other common garden plants are similarly attaclced. There are many thousands of the worms in the nodules upon such a root system. (After Kati Marcinowski.) Fig. 7.—Roots of the cow-pea, showing enlargements caused by the gallworm. With the exception of one variety (the Ironcowpea) this plant is very susceptible to the gallworm, and the use of susceptible va^ rieties as green-manure crops in peach orchards and in rota- tions just preceding cotton in the South is to be avoided. () ^^^asff^'. Fig. 6.—Roots of lomato, showing enlargements caused by the gallworm. Tomatoes somet imes suffer severely from this disease. (After George F. Atkinson.) on okia larger, and on cucumbers and tomatoes frequently of great size, as shown in figures 3, 4, o, and 6. Ordinary cowpeas are rrir. 02]. 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: 1510px × 1656px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubj, booksubjectagriculture
