- 381 - 
Nicotine was less efficient than undiluted kerosene and ethylene 
dichloride in killing the hibernating larvae of the codling moth 
( Carpocapsa pomonella ) . 
NET7CGMER, E. J. (1632) 
192S. THE CODLING MOTH IN THE PACIFIC N0RTHT7EST: STATUS OF PRESENT 
SPRAY PRACTICES AND PROSPECTS FOR IMPROVEMENTS IN CONTROL MEASURES. 
4th Internatl. Cong. Ent, 1928. 2 (Trans.) pp. 567-570. [Abstract 
in Rev. Appl. Ent. (A) 18: 313-314. 1930.] 
In the future the later sprays for codling moth control will con- 
sist of oil, nicotine, or some other material that will reduce the 
residue hazard and the losses from stings. 
PETTEY, P. 17. (1633) 
1929. CODLING MOTH CONTROL. EXPERIMENTS T7ITH SUMMER OIL SPRAYS. 
Farming in So. Africa reprint No. 56, 13 pp. [Abstract in Rev. 
Appl. Ent. (A) 18: 102-103. 1930.] 
No radical changes in the present methods of control can be 
adopted; the indications are that a program may ultimately be adopted 
allowing the reduction of lead arsenate sprays to 2 or 3 applications 
to be followed by 3 or more combination oil-nicotine, oil-pyrethrum 
or oil-derris sprays and so obviating the necessity of removing arseni- 
cal residue. 
SMITH, R. H. (1634) 
1929. ADDITIONAL INFORMATION ON CONTROLLING CODLING MOTH BY SPPAYING 
AND DUSTING. Diamond TTalnut News 9 (l): 8-9. [Abstract in Rev. 
Appl. Ent. (A) 17: 386-387. 1929.] 
Tests were carried out with a number of insecticides against 
newly hatched codling moth larvae, and it was found that 3/ 7 4 pt . of 
nicotine sulphate with 1 lb. caseinate spreader in 100 gal. water was 
the most satisfactory, giving a mortality of 42.3 percent. 
2 (1635) 
1929. BSHAVIQH OF THE NET7LY-HATCHED CODLING MOTH T70RM ON T7ALMJT3. 
Calif. Cult. 72 (22): 634-635. [Abstract in Biol. Abs. 4 (7-9): 
2094. Entry 22,207. 1930.] 
Nicotine spray and dust killed a large percentage of Carpocapsa 
pomonella on English walnuts. 
SPULER, A. (1636) 
1929. MORE EFFICIENT CODLING MOTH CONTROL. Idaho Hort. Assoc. Proc. 
34th Ann. Meeting, -op. 100-111. [Abstract in Rev. Appl. Ent. (A) 
17: 710-712. 1929.'] 
