- 400 ~ 
T70RTHLEY, fl, IT. (1711) 
' 1934. CODLING MOTH SPRAYING EXPERIMENTS IN PENNSYLVANIA IN 1933. Jour. 
Econ. Ent. 27: 240-244. 
Nicotine-oil left a rather dull finish in contrast to' the 
"bright lively red. color in the "blocks sprayed with other materials. 
Codling-moth control in heavily infested orchards in southern 
Pennsylvania can "be obtained best with 3 lb. lead arsenate plus 2/3 
lb. skim milk powder per 100 gal., with liquid lime sulphur and with 
nicotine sulphate in one application at the peak of first brood ovi- 
position. To avoid necessity of washing, nicotine-oil as a substitute 
for lead arsenate should be used after the third cover spray on late 
varieties and after the second cover spray on early varieties. Its 
use is objectionable due to cost and incompatibility with the standard 
fungicide. To avoid danger of injury, lime-sulphur should be omitted 
from the spray next preceding the substitution of oil-nicotine. 
3. Oriental Peach Moth, 1917-1930 
G-ARMAN, p. (1712) 
1917. THE ORIENTAL PEACH PEST. Md. Agr. Expt. St a. Pull. 209, 16 ppi, 
illus. [Abstract in Rev. Appl. Ent. (A) 6: 369-370. 1918.] 
The complete course of treatment against the oriental peach 
moth, ( Laspeyresia ) Grapholitha molesta Busck. is: concentrated lime- 
sulphur 1:9 when the buds swell; self-boiled lime-sulphur 8:8:50 with 
calcium arsenate and nicotine after the petals fall, the same mixture 
being applied 2, 8, and 12 weeks later. Applications of tobacco (nico- 
tine sulphate or Black Leaf 40) and soap cannot be recommended for com- 
bating this pest . 
TTOOD, T7. B., and SELKREG-G-, E. R. (1713) 
1918. FURTHER NOTES ON LASPEYRESIA MOLESTA , Jour. Agr. Res. 13: 59-72, 
illus. [Abstract in Rev. Appl. Ent. (A) 6: 373-374. 1918.] 
Negative results were obtained with 40 percent nicotine sul- 
phate (1:400) and with a combination spray of lead arsenate and nicotine 
sulphate. Other attempted remedial measures included immersing the 
cocoons containing hibernating larvae of the oriental peach moth in 
miscible oils and nicotine sulphate . 
ANONYMOUS (1714) 
1919. INSECT INVESTIGATIONS. Md. Agr. Expt. Sta. Ann. Rept . 32 (1918- 
1919), II-VII. [Abstract in Rev. Appl. Ent. (a) 8: 249. 1920.] 
Further experiments in the control of the oriental peach moth, 
(Laspeyresia ) Grapholitha molesta Busck, indicate that orchards can be 
protected by thoroughly spraying with a combination of self-boiled lime- 
sulphur, nicotine sulphate, and a satisfactory spreader, such as lime 
caseinate. 
