New York Agricultural Experiment Station. 579 



1870. *Mbrchant, J. W. Amor. Ent. and Eot., vol. V, No. 2, 



p. 303. Ravages and means against Schizoncura lani- 

 gera. 



1871. Riley, C. V. Third Missouri Report, p. 95. The apple- 



root louse identical with the woolly aphis. 

 ''^ Bbthune, C. J. S. Report Fruit Growers' Assoc, of On- 



tario for the year 1870, 1871. Characters, habits, in- 

 juries, and means against. 



1872. *D[immock], G. Insects infesting apple trees. New 



England Homestead, June 1, 1872, vol. V, No. 4, p. 25. 



Treats of Erioaoma pyri l=Schi,zoneura lan'u/era}. 



1877. Saunders, W. Ann. Report Ent. Soc. Ont, p. 390. Ene- 



mies and means against. 



1878. GoTT, B. Ninth Ann. Rep. Ent. Soc. Ont., p. 57. Brief 



note; very abundant during the past sea®on; oil or 

 varnish given as remedies. 

 ls79. CoMSTOCK, J. n. Ann. Rept. U. S. Dept. Agr., 1879, p. 

 258. Notes supplementary tO' Dr. Cyrus Thomas' ar- 

 ticle in Trams. Dep. Agr., 111., 1878, vol, XVI, p. 128. 

 Including brief report of observations on life history. 

 In Washington, both trunk and root form found to main- 

 itain themselves through winter without intervention 

 of winter egg. Remedial measures also briefly stated. 

 Osborn, H. Report on noxious insects. Trans. Iowa 

 State Hort. Soc. for 1878-1879. Habits and natural his- 

 tory. 



1881. Cooke, Mathew. Treatise on Insects Injurious to Fruit 



and Fruit-Trees of the State of California, p. 51. 

 Bethune, Rev. C. J. S. Twelfth Ann. Rept. Ent. Soc. 

 Ont., pp. 74-7G. General account of life history and 

 habits; soap and tar given as remedies. 1 Fig. 



1882, *Gillet, F. Suli>ho-carbonate of potassium as a remedy 



against the apple-root louse {ScMzoneura lanigera]. 

 1st Rept. Board State Hortic. Comm. Cal., 1882, pp. 

 33, 34. 

 Not effective. 



