- 419 - 
KELSALL, A., and PATTERSON, N. A- (1798) 
1931. EXPERIMENTS ON THE CONTROL OF THE GRAY-BANBEB LEAF ROLLER, 
EULIA MARIANA FERN. Ontario Ent. Sec. 61st Ann. Rept . 1930, pp. 34-85. 
In experiments 48.9 percent control was obtained with 1 applica- 
tion of lead arsenate (1 lb. to 40 gal. water), 73.3 percent with 2 
applications of the same spray, and 84.8 percent with 2 applications 
of 40-percent nicotine sulphate (1:300). 
CORDLEY, A. B., and JARBINE, J. T. (1799) 
1921. BEPARTMENT OF ENTOMOLOGY. Ore. Agr. Expt. Sta. Rept. 1918-1920, 
pp. 59-63. [Abstract in Rev. Appl. Ent. (A) 9: 222-223- 1921.] 
The ravages of the applo loaf roller ( Tortrix argyrospila ) and 
£• rosa cegjaa may "be reduced "by from 50 to 90 percent "by moans of oil- 
sprays in April. Calyx sprays of oil, lead arsenate, and Black Loaf 
40 killed about 33 percent of the young larvae . 
SPULER, A. (1300) 
1922. THE ORCHARB LEAF-ROLLER. Hash. Agr. Expt. Sta. Bull. 179, 
S pp. [Abstract in Rev. Appl. Ent. (A) 11: 448. 1923.] 
Nicotine dust and liquid sprays of nicotine sulphate have given 
no practical control of Tortrix ( Ar chips ) argyrospila . 
BELOSELSKAYA, Z. G. (1801) 
1925. ON THE BIOLOGY OF SOME INJURIOUS LEAF-ROLLERS. Befense des 
Plantes 2 (4-5): 217-226. [in Russian. Abstract in Rev. Appl. Ent. 
(A) 14: 58-59. 1925.] 
Fumigation with tobacco dust in the evening gave satisfactory 
results against the leaf-roller Tortrix ( Cacoecia ) ro s ana L. 
HUTSON, R. (1302) 
1933. THE CONTROL OF STRAWBERRY LEAF ROLLER ON BEARING PUNTS. Mich. 
State Quart. Bull. 16 (l): 7-8. [Abstract in Expt. Sta. Roc. 70: 
54. 1934.] 
A combination of nicotine sulphate 1 pt . , summer oil emulsion 
1 gal., and activated pyrethrum dust was found to be the most promising 
spray material. Most of the effect is due to killing of the eggs. It 
is necessary to use about 3 sprays at weekly intervals and from 85 to 
90 percent control is thus obtained. 
