- 375 - 
Nicotine sulphate at from 1 to 400 to 1 to 3,200 on foliage was 
strongly repellent to tent caterpillars ( Mai aco soma pluvial! s ) and 
those which ate the foliage were killed quickly. A field test with 
nicotine sulphate 1 to 400 as a spray against the codling moth on 
apple showed in one instance a 50-percent reduction in the amount of 
injured fruit . 
FR0MME, F. D.', and .SCHOSNE, 17. J. (1606) 
1918.' DUSTING AND SPRAYING FOR APPLE SCAB AND CODLING MOTH. '7a. State 
Ent. and Plant Path. 11th Rept . 1916-1917, pp. 22-26, illus. [Abstract 
in Rev. Appl . Ent. (A) 7: 207. 1919.] 
Spraying with- lime- sulphur and nicotine sulphate gave less satis- 
factory results against codling moth than a lime-sulphur and lead 
arsenate spray. 
H0T7ARD, L. 0. (1607) 
1918. REPORT OF THE ENTOMOLOGIST. U. S. Dept. Agr. Bur. Ent., 24 pp. 
1918. [Abstract in Rev. Appl. Ent. (A) 7: 100-104. 1919.] 
Tests on the ovicidal action of nicotine have shown that it is 
not sufficient to control Cydia p omonella satisfactorily when used 
alone.. 
LOVETT, A. L. (1608) 
1918. NICOTINE SULPHATE AN EFFECTIVE OVICIDE FOR CODLING MOTH EGGS. 
Jour. Econ. Ent. 11: 149-150. [Abstract in Rev. Appl. Ent. (A) 6: 
208. 1918.]. 
Black Leaf 40 (1: 1,200) plus fish oil soap 4 lb. to 100 gal. 
killed 100 percent of the eggs of the codling moth- 
VTATERBURY, H. E. (1609) 
1918. "EXPERIMENTAL ENTOMOLOGICAL T70RK. Yakima Co., T7ash., Dist. Hort. 
Insp. Ann. Rept. 1917, pp. 25-54, illus.; TTash. Dept. Agr. Bicn. Rept. 
3 (1917-18): 78-87. [Abstract in Expt. Sta. Rec. 41: 160. 1919.] 
The results obtained from the use of nicotine sulphate during the 
year failed to confirm the earlier results (Expt. Sta. Rec. 38: 653), and 
led to the conclusion that nicotine under lower valley conditions is not 
so effective against codling moth as is lead arsenate. In one experi- 
mental plat the nicotine was as effective as the lead but no more effectiva 
H0T7ARD, L. 0. (1610) 
1920. REPORT OF THE ENTOMOLOGIST. U. S. Dept. Agr. Bur. Ent. Ann. Rept. 
1920, 36 pp. [Abstract in Rev. Appl. Ent. (A) 9: 110-114. 1921.] 
Tests against Cydia pomonella are being made with a dust composed 
