Root-knot and its control . X 105: t, t, Testis. Fig. —Mature male stillwithin lan^al skin, X 85. Fig. 15.—^]\Iature male, X 85. Fig. 16.—^Anteriorportion of adult male, showing spear and peculiar structure for guiding itsmovements, X 930. Fig. 17.—Larva entering root of clover, X 100. Fig. 18.—Larva of Heterodera schachtii Schmidt just escaped from egg (compare fig. 3),X 105. Fig. 19.—^Anterior portion of same, X 435. Plate II. Fig. 1.—Root-knot on sugar beets grown at the Subtropical Laboratory,Miami, Fla. 1907. Photographed by E. A. Bessey. Fig. 2.—Root-knot onsquash, from Beeville, Tex
Root-knot and its control . X 105: t, t, Testis. Fig. —Mature male stillwithin lan^al skin, X 85. Fig. 15.—^]\Iature male, X 85. Fig. 16.—^Anteriorportion of adult male, showing spear and peculiar structure for guiding itsmovements, X 930. Fig. 17.—Larva entering root of clover, X 100. Fig. 18.—Larva of Heterodera schachtii Schmidt just escaped from egg (compare fig. 3),X 105. Fig. 19.—^Anterior portion of same, X 435. Plate II. Fig. 1.—Root-knot on sugar beets grown at the Subtropical Laboratory,Miami, Fla. 1907. Photographed by E. A. Bessey. Fig. 2.—Root-knot onsquash, from Beeville, Tex. 1904. Photographed by TV. A. Orton. Plate III. Fig. 1.—Root-knot on carrot, from Morrison, HI. 1908. Photographedby W. W. Gilbert. Fig. 2.—Root-knot on red clover grown in a pot of sterilizedsoil inoculated with affected roots of Ipomoea syringaefolia, Subtropical Labora-tory, Miami, Fla., 1908. Photographed by E. A. Bui. 217, Bureau of Plant Industry, U. S. Dept. of Agriculture. Plate Stages in the Development of Heterodera Radicicola (Greef) Mull., etc. Bui. 217, Bureau of Plant Industry, U. S. Dept. of Agriculture. Plate II
Size: 1263px × 1977px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1900, bookdecade1910, bookpublisherwashingtondcgpo
