NICOTINE SULPHATE AS AN OVICIDE AND LARVICIDE. 19 



LITERATURE CITED. 



(1) [De Sellem, F. E.] 



1916. Nicotine sulfate for codlin moth control. In Ann. Rept. Hort. 



Dept., Yakima Co., Wash., p. G2-72. 



(2) Eaton, J. S., and Waterbury, H. E. 



1917. Codlin moth experimental work in Ross orchard. In Ann. Rept. 



District Hort. Inspector, Yakima Co., Wash., p. 27-42. 



(3) Feytaud, J. 



1912. Action des insecticides sur les oeufs de la cochylis et de l'eudemis. 

 In Bui. Soc. d'Etude et de Vulgarisation de la Zool. Agr., Bor- 

 deaux, p. 1-20. 



(4) Lovett, A. L. 



1917. Nicotine sulphate as a poison for insects. In Jour. Econ. Ent., v. 



10, no. 3, p. 333-337. 



(5) 



1918. Nicotine sulphate an effective ovicide for codling moth eggs. Notes 



in Jour. Econ. Ent., v. 11, no. 1, Feb., p. 149-150. 



(6) McIndoo, N. E. 



1916. Effects of nicotine as an insecticide. In Jour. Agr. Research, v. 7, 



no. 3, p. 89-122. 3 pi. 



(7) Moore, William, and Graham, S. A. 



1917. A neglected factor in the use of nicotine sulphate as a spray. In 



Jour. Agr. Research, v. 10, no. 1, p. 47-50. 



(8) Packard, A. S. 



1903. A text-book of entomology. New York. 



(9) Safro, V. I. 



1917. How to test for the presence of nicotine on sprayed plants. In 

 Jour. Econ. Ent., v. 10, no. 5, Oct., p. 459-461. 



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