28 BULLETIN 730, IT. S. DEPARTMENT OF AGRICULTURE. 



restrict the feeding area of the root system, and it becomes necessary 

 to use fertilizers rather freely within a few feet of the vine, where 

 most of the roots are located. The use of fertilizers and the applica- 

 tion of the other cultural methods mentioned become increasingly 

 important as the root injury increases. 



LITERATURE CITED. 



(1) Harris, T. W. 



1854. Note upon the insects injurious to the roots of the cultivated grape vines 

 in North Carolina. In Raleigh Register, Raleigh, N. C, April 5, p. 6-7. 

 Original description and notes on habits of Sciapteron polistiformis. 



(2) Harris, T. W. 



1854. Report on some of the diseases and insects affecting fruit trees and 

 vines. 11 p. Boston. (Reprint from Proc. Amer. Pomol. Soc, 1854, 

 p. 210-218.) 



Page 10: Description of Sciapteron polistiformis. 



(3) Walsh, B. D. 



1868. First annual report on the noxious insects of the State of Illinois. 103 

 p., pi. Chicago. 



Pages 2-1-27: Insects infesting the grape on the root. The grape-root borer (JEgcria polisti- 

 formis Harris). Full account. Mentions injury in North Carolina, Kentucky, Ohio, and Mis- 

 souri. 



(4) Riley, C. V. 



1871. Third annual report on the noxious, beneficial, and other insects of the 

 State of Missouri. 157+[7] p., 73 fig. Jefferson City, Mo. 



Pages 75-77, fig. [33]: The grape-root borer (Mgcria polistiformis Harr.). Description and 

 notes of occurrence in Missouri and Kentucky. 



(5) Glover, Townend. 



1873. Entomological record. In TJ. S. Dept. Agr. Monthly report for October, 

 1873, p. 496^99. 



Page 496: Report of serious injury in North Carolina. Mycria polistiformis Harris. 



(6) Lugger, Otto. 



1898. Butterflies and moths injurious to our fruit-producing plants. Minn. 

 Agr. Exp. Sta. Bui. 61, p. 5*5-334, 237 fig., 24 pi. Dec. 



Pages 109-111, fig. 59: The grape-vine root-borer {Sciapteron polistiformis Harr.). 



(7) Holland, W. J. 



1903. The moth book. New York, xxiv+479 p., 263 fig., 48 col. pi. 

 Pages 382-383, PI. XLVI, fig. 11-12: Brief mention of Memyfhrus polisliforv. is. 



I I i ROOKS, F. E. 



1907. The grape-vine root-borer. West Va. Agr. Exp. Sta. Bui. 110. 3 p., 

 [5] pi. 



Account of an investigation of the species in West Virginia. 



