. Cutworms, armyworms and related species attacking cereal and forage crops in the central Great Plains. Cutworms; Armyworms; Grain Diseases and pests; Forage plants Diseases and pests. Figure 1.âHead Characters of Cutworms A, Head capsule with adfrontal sutures terminating in the occipital foramen. B, Head capsule with adfrontal sutures not reaching the occipital foramen. C, Type of fuscous reticulation on head capsule. D, Head with reticulation replaced by fuscous freckles. E, Head with fuscous coloration limited to submedian arcs. F, Head with deep fuscous coloration, and adfrontal areas co
. Cutworms, armyworms and related species attacking cereal and forage crops in the central Great Plains. Cutworms; Armyworms; Grain Diseases and pests; Forage plants Diseases and pests. Figure 1.âHead Characters of Cutworms A, Head capsule with adfrontal sutures terminating in the occipital foramen. B, Head capsule with adfrontal sutures not reaching the occipital foramen. C, Type of fuscous reticulation on head capsule. D, Head with reticulation replaced by fuscous freckles. E, Head with fuscous coloration limited to submedian arcs. F, Head with deep fuscous coloration, and adfrontal areas conspicuous white. 0 <sr--\ -Ha la- â lib Vâ-x$ - -lb- lie "fc)-iia Ic â 0-nb - VI- -VII â -« gr p&~ -VIII fir<6-v\n T2 U-sp vna- vnb 0" 0 ggf-iv 5? gTviic A2 0- 0- <2fâ 4 â 0" .0 sp -ef A3 A7 A8 ..0- -4 A9 Figure 3. Larva: A8, A9 âArrangement and Numbering of Setae on Typical Cutworm Thoracic segments, Tl and T2; abdominal segments, Al, A2, A3, A7, spiracle, 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 Walkden, H. H. (Herbert Halden), b. 1893. Washington, D. C. : U. S. Dept. of Agriculture
Size: 1637px × 1527px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookpublisher, booksubjectgraindiseasesandpests
