- 391 - 
Nicotine tannate, when combined with emulsified mineral oil in 
the last two cover sprays, gave protection equal to a straight lead 
arsenate treatment on apples. 
CROSBY, C. R., MILLS, V. D., and BLAUVELT, 17. E. • , (1672) 
1933. PROTECTING ORCHARD CROPS PROM DISEASES AND INSECTS. N. Y. 
[Cornell] Agr. Expt. Sta. Bull. 498 (revised), 83 pp., illus. [^Abstract 
in Rev. Appl. Ent. (A) 22: 300. 1934.] 
Spraying twice a month (a calyx and 6 cover sprays) with 2.5 lb. 
lead arsenate and 2 gal . summer oil in 100 gal. water gave 96 percent 
uninjured fruit in 1933, and the residue .was easily removed. To make 
washing unnecessary, 1 pt. nicotine may be substituted for the arsenical 
in the last four sprays. 
OUTRIGHT, C. R. , and HOUSER, J. S. (1673) 
1933. EXPERIMENTAL RESULTS IN CODLING MOTH CONTROL T7ITH LATE SUMMER OIL 
APPLICATIONS. Jour. Econ. 'Ent. 26 (2): 380-383. [Abstract in Rev. 
Appl. Ent. (A) 21: 333. 1933.] 
The trend of results in experiments in which nicotine sulphate 
was added to the oil slightly favors lead arsenate, but the difference 
is very small. 
P0T7LSR, R. (1674) 
1933. SPRAYING EXPERIMENTS EOR CODLING MOTH CONTROL - BLACKWOOD, 1931-32. 
Jour. Dept. Agr. So. Aust. 36 (6): 647-660, illus. [Abstract in 
Rev. Appl. Ent. (A) 21: 265. 1933.] 
The general results indicated that it is possible. in a year of 
heavy. crop of fruit to control the codling moth with five sprays of 
lead arsenate (4 lb. per 100 gal.) with the addition of a spreader in 
the last four, but the substitution of an oil and nicotine sulphate 
spray for the last one increases the effectiveness. The cost is a 
little higher, but the arsenical residue is decreased to within ox- 
port tolerance.- By using combined oil-arsenate sprays good results 
can be obtained with 3 lb. arsenate and 3/4 gal. oil in 100 gal., the 
oil-nicotine combination being used in the last cover spray. 
HARMAN, S. 17. (1675) 
1933. CODLING MOTH CONTROL. N. Y. [Geneva] Agr. Expt. Sta. Bull. 627, 
31 pp., illus. [Abstract in Rev. Appl. Ent. (A) 21: 461-462. 1933.] 
Nicotine sulphate in combination with oil sprays proved an ef- 
fective substitute for lead arsenate in the fourth cover spray (p. 462). 
JARVIS, H. (1676) 
1933. CODLING MOTH CONTROL EXPERIMENTS, 1930-33. Queensland Agr. Jour. 
40 (1): 25-34. [Abstract in Rev. Appl. Ent. (A) 21: 570-571. 1933.] 
