The Mexican cotton-boll weevil (Anthonomus grandis Boh.) . Fig. 1.—Anthonomus grandis: a, adult beetle; b, pupa; c, larva—allenlarged. the season, puncturing and laying its eggs in the squares and bollsThe larvae, of the shape and appearance shown at fig. 1, c, and measuring a little over three-eighths of an inch in length when full grownlive within the buds and bolls and feed upon their interior substanceThe squares attacked usually drop, but most of the damaged bollsremain upon the plant and become stunted or dwarfed, except late inthe season, when they either dry or rot. DISTRIBUTION. This
The Mexican cotton-boll weevil (Anthonomus grandis Boh.) . Fig. 1.—Anthonomus grandis: a, adult beetle; b, pupa; c, larva—allenlarged. the season, puncturing and laying its eggs in the squares and bollsThe larvae, of the shape and appearance shown at fig. 1, c, and measuring a little over three-eighths of an inch in length when full grownlive within the buds and bolls and feed upon their interior substanceThe squares attacked usually drop, but most of the damaged bollsremain upon the plant and become stunted or dwarfed, except late inthe season, when they either dry or rot. DISTRIBUTION. This insect through its ravages caused the abandonment of cottonculture around Monclova, Mexico, about 1862. Two or three years ago. \XI c o Fig. 2.—Map showing distribution of the Mexican cotton-boll weevil. cotton was again planted in that vicinity, but the weevil immediatelyreappeared and destroyed the crop. At Matamoras the weevil wasnoticed eight or ten years ago. About 1893 it crossed the river atBrownsville, and in 1894 was noticed in the country around San Diego,Alice, and Beeville. At the close of the season of 1891 the insect occu-pied a territory extending to the north a little beyond Beeville, a fewmiles to the east of that point, and southwest to the neighborhood ofBealitos, on the National Mexican Railway. Tbe greatest damageseems to have been clone along the lower Nueces River. During 1895, and particularly in the latter part of the season, it extended its rangeto a considerable extent. Toward the east it was found in moderateabundance along the valley of the Guadaloupe River at Victoria,Thomaston, and Cuero. North of its old range it extended to Kenedy,Floresville, and many points in the country l
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Keywords: ., bookcentury1800, bookdecade1890, bookidme, booksubjectinsectpests
