- 37<J - 
HARTZELL, A., and T7ILC0X0N, F. (1623) 
1928. ANALYSES OF SPRAYED APPLES EOR LEAD AND ARSENIC. Jour. Scon. Ent. 
21; 125-130. [Abstract in Rev. Appl . Ent. (A) 16: 394-395. 1928.] 
Treatment with a spray containing 4 Id. lead arsenate powder, 2 Id. 
casein-lime, and 1 1/2 pt. nicotine sulphate to 150 gal. gave 95 percent 
control of the codling moth. Eive applications were made, two before 
and two after the calyx spray. Lime-sulphur was combined with the 
first four sprays. 
HEADLEE, T.J. ■ (1623) 
1928. AH OPERATION -IN PRACTICAL CONTROL OE CODLING MOTH I1T -A HEAVILY 
INFESTED DISTRICT-SECOND REPORT. Jour. Econ. Ent. 21: 774-778. [Ab- 
stract in Chem. Abs. 23: 467. 1929.] 
A report on procedure which resulted in 82 percent of the apples 
picked being free from codling moth ( Carpocapsa pomonella ) injury. The 
timing, composition, and method of applying Insecticides, including 
nicotine, were the most important factors in producing this result. 
LSVICK, G. T. •• • (1624) 
1928. CODLING MOTH CONTROL. Jour. Dept. Agr. Victoria 26 (-8): 459-462. 
• Nicotine sulphate was used in combination with lead arsenate, 
but it did not appear to have any effect in reducing the codling 
moth infestation. 
MARLATT, C. L. (1625) 
1928. REPORT OF THE ENTOMOLOGIST. U. S. Dept. Agr. Bur. Ent. 34 pp. 
[Abstract in Rev. Appl. Ent. (A) 17: 272-275. 1929.] 
Nicotine sulphate (1:800) used in three cover sprays, following 
a calyx and first cover spray of lead arsenate, gave very satisfactory 
results against the codling moth. 
MOTE, D. C. (1626) 
1923. DEPARTMENT OF ENTOMOLOGY. Oreg. Agr. Expt. St a. Bien. Rept . 
1926-28, pp. 101-109. [Abstract in Rev. Appl. Ent. (A) 18: 78. 1930.] 
Nicotine sulphate substituted for lead arsenate in the last cover 
spray for the control of the codling moth (Cydia pomonell a L.) gave 
slightly inferior results. 
DeSELLEM, F. E. (1627) 
1929. RECENT DEVELOPMENT IN CONTROLLING CODLING MOTH T7ITH NICOTINE-OIL. 
T7ash. State Hort . Assoc. Proc. 25, pp. 95-107, illus. 
