THE PEA APHIS WITH RELATION TO FORAGE CROPS. 57 
1900a. Fletcher, James. Injurious insects in Ontario during 1S99. In 30tli Ann. 
Ilpt. Ent. Soc. Ontario, p. 106-111. 
Page 107. Notice of abundance and injury to field, garden, and sweet peas by Ncctaroyhora 
destructor. Natural enemies and remedies. 
1900b. Fletcher, James. Report of the entomologist and botanist. In Canada 
Expt. Farms Rpts. f. 1899, p. 159-204, 23 fig. 
Page 170. Reports injury to garden, field, and sweet peas and vetch by Nectarophora 
pisi and quotes from letters (dated from Julj' 29 to October) reporting injury. Notes on 
natural enemies of the pea louse. Remedies. 
1900. Forbes, S. A., and Hart, C. A. The economic entomology of the sugar beet. 
Univ. 111. Agr. Expt. Sta., Bui. 60, p. 397-532, 97 fig., 9 pi. Also: In 
21st Rpt. State Ent. 111., p. 83. 
Page 431. Nectarophora pisi reported from Illinois. Said to have ])een found on beets in 
Nebraska. 
1900. Gibson, Arthur. Notes on Insects of the year. Division No. 3, Toronto Dis- 
trict. In 30th Ann. Ept. Ent. Soc. Ontario f. 1899, p. 97-98, fig. 60-61. 
Page 97. Reports injury to sweet and field peas in 1899 by Nectarophora destructor. 
1900. Harri¥^gton, W. Hague. Notes on insects of the year. Division I, Ottawa 
District. In 30th Ann. Rpt. Ent. Soc. Ontario f. 1899, p. 94-96, fig. 58-59. 
Page 95. Injury to sweet peas in 1899 by Nectarophora destructor. 
1900. Harvey, F. L. Notes on insects and plants. Maine Agr. Expt. Sta., Bui. 61, 
p. 31-44, Mai-ch. 
Page 31. Reports much damage to garden and field peas in Maine in 1S99 by Nectarophora 
destructor. 
1900a. Johnson, W. G. The destructive green-pea louse. In Canad. Ent., v. 32, 
no. 2, p. 56-60, fig. 4-6, Feb. 
Description of winged and wingless A-iviparous femaks as Nectarophora destructor n. sp. 
Distribution of the species and its natural enemies. 
*1900b. Johnson, W. G. [Nectar ophf/r a destructor Jolm.] In Canner and Dried Fruit 
Packer, Feb. 15, p. 42. 
Injuries, description, habits, and remedies. 
*1900c. Johnson, W. G. [Nectarophora destructor John.] Circulars ^Maryland State 
Hort. Dept. No. 7 (May 12), No. 11 (May 15), No. 13 (May 31), No. 19 
(June 3). Figs. 
Describes condition of pest in Maryland and methods being used against it. 
*1900(l. Johnson, W. G. The green-pea lout^e in Maryland. In Amer. Gard., v. 21, 
no. 284, p. 375, June 2. 
1900e. Johnson, "VV. G. The destructive pea louse. In Rural New Yorker, v. 59, 
no. 2636, p. 525-526, fig. 178-179, August 4. Also: In Strawberry Cult. 
(The strawberry root louse), v. 7, no. 1, p. 7, August. 
1900/. Johnson, \V. G. Notes upon the destructive green-pea lou^e (Nectarophora 
destructor John) for 1900. U. S. Dept. Agr., Div. Ent., Bui. 26, n. b., p. 
55-58, 2 pi. Also: In 31st Ann. Rpt. Ent. Soc. Ontario f. 1900, p. 99-102 
Destructiveness of the pea aphis, with notes on life history and methods of control. 
1900g. Johnson, "\V. G. Notes on insects of economic importance for 1900, V. S. 
Dept. Agr., Div. Ent., Bui. 26, n. s., p. 80-84. 
Page 81. Injuries occasioned by the pea aphis. 
1900. Lugger, 0. Bugs (Hemiptera)injurio-usto-ourcidtivatedplan1.<. I'niv. ]\riini. 
Agr. Exp. Sta., Ent. Div., Bui. 69, 259 p., 200 fig., 16 pi. Al>o: 6th Ann. 
Rpt. State Ent. Minn. 
Page 201. Brief note on injuries in the P^ast and in AN isconsin to peas by Nectarophora 
destructor. 
