- 396 - 
HOUGH, T7. s. (1593) 
1934. CODLING MOTH CONTROL IN VIRGINIA. Peninsula Hort . Soc. [Del.] 
Trans. 1933, pp. 35-38. [Abstract in Rev. Appl. Ent . (A) 22: 298-299, 
1934.] 
A spray of 1 gal. summer oil and 1 pt. nicotine sulphate to 100 
gal. gave about the same degree of control as lead arsenate. It would 
have to be applied every 8 to 10 days during the chief period of ovi- 
position. 
(1694) 
1934. COLORADO AND VIRGINIA STRAINS OF CCDLING MOTH IN RELATION TO THEIR 
ABILITY TO ENTER SPRAYED AND UNSPRAYED APPLES- Jour. Agr. Res. 
48: 533-553, illus. [Abstract in Rev. Appl. Ent. (A) 22: 499. 
1954.] 
Nicotine was one of the spray solutions used. The Colorado 
larvae -were more able to enter the sprayed fruit. 
(1595) 
1934. NICOTINE KILLS CODLING MOTHS. Jour. Econ. Ent. 27: 1102-1103. 
A spray mixture containing Black Leaf 40, -hen applied in a 
heavily infested orchard, caused 77 codling moths to fall on a sheet 
under a sprayed tree. AH died but 6. The moths suffered paralysis 
of the wings and wore incapable of flight. Only volatile nicotine 
appeared to kill moths- Nicotine bentonite or nicotine sulphate with 
oil was not effective. Nicotine was liberated by the addition of lime 
to the spray containing fixed nicotine. The data indicate that 85 to 
90 percent of tho moths may be killed in the trees at the time of 
spraying . 
KNIGHT, H., and CLEVELAND, C. R. (1595) 
1934. RECENT DEVELOPMENTS IN OIL SPRAYS. Jour. Econ. Ent. 27: 259-289, 
illus. 
The results, as reported in a table, show that an oil preparation 
containing glyceryl-oleate is superior to a corresponding treatment of a 
mayonnaise type of sommer oil emulsion combined with calcium arsenate or 
nicotine sulphate, in controlling tho codling moth (p. 282). 
McLEaN, H. C, and T7E3ER, A. L. (1697) 
1334. INFLUENCE OP SPRAY SCHEDULE AND OTHER FACTORS ON SPRAY RESIDUE 
REMOVAL." Jour. Econ. Ent. 27: 163-130. 
Oil-lead arsenate sorays may be applied at 27 and 37 days after 
petal-fall, followed by oil-nicotine sprays, without resulting in spray 
residues in excess of the Federal tolerance on fall and winter varieties 
( ) f a] Dpi e s at harvest. 
