. Bulletin of the Department of Agriculture. Agriculture. 22 BULLETIN 156, U. S. DEPARTMENT OF AGRICULTURE. doing considerable damage to wheat at Wellington, Kans. These lar\iv attaek the wheat in a very unicjue manner for wireworms. They do not seem to attack the roots, bnt bore into the cavity of the Avheat stem and feed on its inner wall. In some fields as many as one-eighth of 1 per cent of the wheat stems were infested. A large number of these larva? were placed in a rearing cage on May (). 1910, and on June 24 four adults were found in the cage. Mr. Kellv found the adult beetles of
. Bulletin of the Department of Agriculture. Agriculture. 22 BULLETIN 156, U. S. DEPARTMENT OF AGRICULTURE. doing considerable damage to wheat at Wellington, Kans. These lar\iv attaek the wheat in a very unicjue manner for wireworms. They do not seem to attack the roots, bnt bore into the cavity of the Avheat stem and feed on its inner wall. In some fields as many as one-eighth of 1 per cent of the wheat stems were infested. A large number of these larva? were placed in a rearing cage on May (). 1910, and on June 24 four adults were found in the cage. Mr. Kellv found the adult beetles of this species numerous on corn plants in the field from July 3 to August 23. Early in March, 1910, an adult of this species was found in a clump of grass {Andropogon scoparhvs). In 1911 Mr. Kelly succeeded in rearing an adult from a pupa collected among the roots of corn. This adult emerged on July 19. Mr. T. H. Parks, at that time with this office, found the beetles very numerous on young corn at Winfield, Ivans., and Okla- homa City, Okla., in June, 1910, and Mr. E. A. Vickery, also of this office, found the beetles very numerous on corn at Browns- ville, Tex., in June. Mr. Pergande records^ the injury to these bee- tles to cotton at We- tumpka, Ala., and Dr. J. B. Smith found the Fiii. ().—The southern coiu wircworm (Monociepidius larVSe injuring beanS »r«.-) . « Ski., view of larv^ ^^ jy^ q^^^^^^ ^^ j_2 larva; c, adult beetle; tl, pupa. All enlarged. (After cinttenden.) Mr. W. R. McConnell, of this office, found the larva^ of these beetles very numerous in alfalfa fields at Carlsbad, N. Mex. Owing to the superficial resemblance of the larva of Drasterius to those of Cryptohypnus, the notes in the files of the Bureau of Entomology relative to these two genera are very unreliable. Web- ster records" Drasterius elegans Fab. as a serious pest to corn and wheat in Indiana, and Forbes records finding larvse attacking corn in Illinois. Prdsferhis elegans is found t
Size: 1639px × 1525px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculture, bookyear
