58 BULLETIN 276, U. S. DEPARTMENT OF AGRICULTURE. 



1900a. Phillips, J. L., and H. L. Price. The nature and. use of certain insecticides. 

 Va. Agr. Expt. Sta., Bui. 97 (n. s., v. 8, no. 2), p. 11-26, February, 1899. 



Page 23. Reports on damage by Nectarophora destructor in 1S9S-1899 and on insecticidetests 

 against this insect. 



*1900b. Phillips, J. L., and Price, H. L. The English pea louse. In South. 

 Planter, v. 61, no. 4, April. 



*1900a. Sanderson, E. D. [Nectaro-phora destructor John.] The destructive pea 

 louse. In Amer. Grocer, v. 63, no. 8, p. 13-14, 2 fig., February 21. Also: 

 In Amer. Packer, Oanner and Dried Fruit Packer, February 15, p. 38, figs. 

 Description, injuries, habits, enemies, and remedies. 



*1900b. Sanderson, E. D. The destructive pea louse. In The Canner and Dried 



Fruit Packer, March, 1900, figs. 

 1900c. [Sanderson, E. D.] The destructive pea louse. Del. Col. Expt. Sta., Press 



Bui. 4, 1 p., May 15. 



Injury to peas in 1899. Occurrence on clover, mode of spreading to peas, and means of 

 control. 



1900d. [Sanderson, E. D.] The green-pea louse. Del. Col. Expt. Sta., Press Bui. 5, 

 1 p., June 1. 



Injury to peas in 1900 in Delaware, susceptibility of different varieties, natural enemies, 

 and control. 



*1900e. Sanderson, E. D. The destructive green pea louse. In Rural New Yorker, 



v. 59, no. 2629, p. 413-414, fig. 126-130, June 16. 

 *1900f. Sanderson, E. D. Pea louse in Wisconsin. In Rural New Yorker, v. 59, 



no. 2644, p. 659, Septeml 3Y 23. 

 1900g. Sanderson, E. D. Notes fit )m Delaware. If. S. Dept. Agr., Div. Ent., Bui. 



26, n. b., p. 66-72. 



Page 69. Record of the pea louse during 1900. Records numerous enemies of this aphidid 

 and gives remedies. 



1900h. Sanderson, E. D. II. The destructive pea louse in Delaware. Del. Col. 

 Agr. Expt. Sta., Bui. 49, p. 14-24, fig. 67, pi. 2-3. 



Injury by Nectarophora pisi, its past history, brief description, food plants, spread of the 

 pest, natural enemies, and means of control. 



*1900. [Slingerland, M. V.] Pea lice in New York State. In Rural New Yorker, 

 v. 59, no. 2649, p. 737, November 3. 



1900a. Smith, J. B. Report of the Entomologist. In 20th Report of the Entomolog- 

 ical Department of the New Jersey Agricultural College Experiment Sta- 

 tion f. 1899, p. 423-512, 44 fig. 



Page 424. First observed injury to peas !'. Nectarophora destructor in 1S9S. Notices of 

 individual reports of damage by this insect in 1S9S, and suggests piv\ entive measures. 



1900b. Smith, J. B. Insects injurious to fruits. In Amer. Agr., v. 66, no. 25, p. 6 15, 



December 22. 

 *1900a, Webster, F. M. [Quoted in Phila. (Pa.) Public Ledger.] April 4, 1904. 



Occurrences of the pea louse at Toledo, Ohio. 



1900b. Webster, F. M. Insects of the year in Ohio. U. S. Dept. Agr., Div. Ent., 

 Bui. 26, n. b., p. 84-90. 



Page 88. Reports occurrence ol Vcctarophora destructcr on Canada I eld peas, as well as red 

 clover and garden pea , in irion parts of Ohio. A fungus identified as Empusa aphidis 

 destroyed myriads of the aphis. 



1900. Weed, C. M. [need record for L899. N. II. Col. Agr. Expt. Sta., Bui. 72, 

 p. 61-74, II fig. 



I';i "r 7 1. Reports damage to garden and sweet peas in various parts of New Hampshire, 

 due to Nectarophora destructor. 



