58 BULLETIN 276^ U. S. DEPARTMENT OF AGEICULTUEE. 
1900a. Phillips, J. L., and H. L. Price. The nature and use of certain insecticides. 
Ya. 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 1898-1899 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. [Nectarophora destructor John.] The destructive pea 
louse. In Amer. Grocer, v. 63, no. 8, p. 13-14, 2 fig., February 21. Also: 
In Amer. Packer, Canner 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 Biual 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, September 23. 
1900g. Sanderson, E. D. Notes from Delaware. U. S. Dept. Agr., Div. Ent., Bui. 
26, n. s., p. 66-72. 
Page 69. Record of the pea louse dm ing 1900. Records numerous enemies of this aphidid 
and gives remedies. 
1900h. Sanderson, E. D. 11. The destructive pea louse in Delaware. Del. Col. 
Agi". 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, natiiral 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. Li 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 hy Nectarophora destructor in 1898. Notices of 
individual reports of damage by this insect in 1898, and suggests preA-entive measures. 
1900b. Smith, J. B. Insects injurious to fruits. In Amer. Agr., v. 66, no. 25, p. 645, 
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. s., p. 84-90. 
Page 88. Reports occurrence of Nectarophora destructor on Canada Leld peas, as well as red 
clover and garden peas, in various parts of Ohio. A fungus identified as Empusa aphidis 
destroyed myriads of the aphis. 
1900. Weed, C. M. Insect record for 1899. N. H. Col. Agr. Expt. Sta., Bui. 72, 
p. Cl-74, 11 fig. 
Pa^e 74. Reports damage to garden and sweet peas in various i)arts of ::cw Hampshire, 
due to Nectarophora destructor. 
