- 563 - 
PABROTT, F. J., and GLASG0T7, H. (2350) 
1925. THE EFFICIENCY OF VARIOUS SPRaY AND DUST MIXTURES IN CONTROLLING 
TEE ROSY APHIS. Jour. Econ. Ent. 18: 214-218. [Abstract in Rev. Appl-. 
Int. 13: 255-255. 1925.] 
Lime sulphur (l to 8, 10, or 15 parts of vrater) plus nicotine 
sulphate (3/4 to 1 pt. per 100 gal.) vras by far the most consistent In- 
effective treatment against Anur aphis roseus ■ The delayed dormant 
period, that is when the tips of the leaves of the more advanced 
"blossom buds are projecting as much as 1/4 or 1/2 inch, is the proper 
time to apply remedies for this aphid. In the calyx stage even the 
most effective sprays containing nicotine, thoroughly applied, have 
practically no effect. Vihere dust mixtures containing high percentages 
of nicotine sulphate neve used the delayed dormant applications have 
never given successful results, "but if treatment is delayed until the 
pink of the "blossoms just "begins to show, a great reduction in the 
injury "by A. roseu s is obtained. 
FARROTT, P. J. (2351) 
1923. THE APPLE APHIDS IN RELATION TO PROFITABLE SPRAY PRACTICES. N. Y. 
State Hort. Soc, proc. 73rd Ann. Meeting, pp. 6-14. [Abstract in 
Rev. Appl .Ent. (A) 16: 459-460. 1928.1 
The most satisfactory spray for the delayed dormant treatment 
of apple orchards in western Hew York is 2 l/2 gal. lime-sulphur, 1 pt. 
nicotine sulphate (40-percent), 2 l/2 Lb. lead arsenate, and 100 gal. 
water. The preferred sprays for midsummer application are soap and nico- 
tine sulphate, iir lime sulphur at summer strength with nicotine sulphate 
in the usual proportions- The c&ast recommended is 3 percent nicotine and 
hydrated lime. The three aphiris attacking apple foliage and fruit in 
Hew York are Anuraphis roseus Baker (rosy apple aphid), Aphis pomi DeG. 
(green apple aphid), and R nopalosiphum prunifoliae Fitch" (apple-grain 
aphid) . 
PATCH, E. U. (2352) 
1924. THE BUCKTHORN APHID (APHIS ABLR EYIATA PATCH). Maine Agr. Expt. 
Sta. Bull. 317, pp. 29-52, illus. [Abstract in Rev. Appl. Ent. (A) 
13: 31-32. 1925.] 
For spraying, kerosene emulsion or nicotine sulphate is recommend d 
or a nicotine dust may be used. Fumigation should "be even more effective. 
HINDS, 17. E. (2353) 
1925. REPORT ON THE PRODUCTION OF COTTON III THE CANSTE VALLEY, PERU. 
Lima Soc. Nac. Agr., 20 pp. [In Spanish. Abstract in Rev. Appl. Ent. 
(A) 17: 23-24, 1929.] 
