- 333 - 
T7h.it e oil (1:30) with, nicotine s i alphate (1:800) gave fair 
results, "being mainly ovicidal in its action, but caused a certain 
amount of injury to, the fruit. 
anonymous (1541) 
1930. ENTOMOLOGY. Ohio Agr. Expt. Sta. Ann. Rept. 48 (1928-1929) Bull. 
446, pp. 78-93, illus. [Abstract in Rev. Appl . Ent. (A) 18: 550-552. 
1930.] 
The addition of nicotine to lead arsenate and oil sprays greatly 
increased the mortality of codling moth larvae during the first 48 
hours after spraying, "but from that time onward little difference in 
infestation was noted. Apple trees sprayed with lime-sulphur at dor- 
mant strengths with the addition of nicotine sulphate (1:800 or 1:1000) 
were almost entirely free from aphids ( Anur aphis roseus 3ak.). The 
most effective spray against Aphis pomi DeG. is nicotine sulphate 3/4 
pt. to 100 gal. water, to which is added 3/4 gal. commercial miscible 
oil or 1 gal. oil emulsion. 
(1642) 
1930. DEPARTMENT OF ENTOMOLOGY. Ore. Agr. Expt. Sta. 3ien. Rept. 
1928-1930, pp. 86-90. [Abstract in Rev. Appl. Ent. (A) 19: 201-202. 
. 1931.] 
In tests with substitutes for lead arsenate against the codlirg 
moth carried out under field conditions in Oregon, calcium arsenate 
gave as good control as lead arsenate. Of the other materials, pyre thrum 
gave the best results , and those secured with nicotine sulphate, and 
sodium and barium fluosilicates warrant further tests. 
GROSS, C. R., and FAHEY, J. E. (1643) 
1930. SOME OF THE CHEMICAL PROBLEMS IK CODLING MOTH CONTROL. Northwest 
Fruit Grower, May - June, pp. 7, 22. [Abstract in Rev. Appl. Ent. 
(A) 18: 646-647. 1930.] 
A nicotine and oil combination held the nicotine better than any 
other combination tried; other combinations - nicotine tannate plus 
fish oil, and nicotine sulphate plus corn syrup and glycerine were, 
however, better than nicotine sulphate applied alone. Nicotine oleate 
gave poor control and scorched the foliage. The degree of control was 
found to be correlated in general with the amount of nicotine remaining 
on the foliage. 
HSADLEE, T. J. (1644) 
1930. SOME SUBSTITUTES FOR ARSENIC IN CODLING MOTH CONTROL. Amer. 
Fruit Grower Mag., p. 25, Feb. [Abstract in Biol. Abs. 5 (3): 354, 
Entry 8,520. 1931.] 
A spray, which controlled Cam o caps a pomonella as well as 
arsenical sprays without leaving a harmful residue on the fru.it, was 
