- 561 - 
appears to offer promising results in localities with cool temperatures 
in the growing season. 
LYLE, C. (2342) 
1929. CONTROLLING PLANT LICE. kiss. State Plant 3d. Quart. Bull. 9 
(2): 4 - 8. [Abstract in Rev. Appl. Ent. (A) 18: 277. 1930.] 
Directions are given regarding the methods for controlling 
aphid s on turnips, cotton, and pecans by spraying or dusting with 
nicotine sulphate, and a home-made mixer for making the dust is 
described. 
THOMPSON, 3, G. (2343) 
1929. ROTE OH THE OCCURRENCE OF THE DUSKY- VEINED 7/ALHUT APHIS, 
CALLIPTERUS JUGLANDIS PUTSCH (A EUROPEAN INSECT) IN AMERICA. Jour. 
Econ. Ent. 22: 270. [Abstract in Rev. Appl. Ent. (A) 17: 385. 1929.] 
Applications of a 2 percent nicotine dust, made after midnight 
and before 8:00 A.M. end begun when apterous forms predominated, 
gave excellent control. 
YffiBSTEE, R. L. , and BAKER, 17. 17. . (2344) 
1929. POTATO PLEA- BEE TIES IN WASHINGTON EPITRIX SU3C RIHITA LECONTE: 
E. CUCUMERIS HARRIS. Jour. Econ. Ent. 22: 897-900. [Abstract in 
Rev. Appl. Ent. (A) 18: 204. 1930.] 
Dusting potato foliage has reduced leaf injury, but has 
not controlled damage to tubers. The most satisfactory dust 
was a combination of 6 3/4 lb. hydrated lime, 5 lb. finely ground 
sulphur, and 10 oz. nicotine sulphate, representing an actual 
nicotine content of 2 percent, but the cost is very high. 
HUCKETT, H. C. (2345) 
1930. RESULTS PRO;.. THE USE OF NICOTINE IN THE CONTROL OF SUCKING 
INSECTS ON POTATOES ON LONG ISLAND. Jour.' Scon. Ent. 23: 169-174. 
[Abstract in Rev. Appl. Ent. (A) 18: 400-401. 1930.] 
Nicotine dust (3 pt. 40-percent nicotine sulphate, 10 lb. 
colomite, and 50 lb. hydrated lime) at the rate of 50 lb. per 
acre gave better results than nicotine spray (1 pt. 40-percent 
nicotine sulphate to 100 gal. bordeaux mixture). Insects were 
Macro sip hum gei Koch, ( I Hi no in. solnnifolii Ashm.) , I/iyzus pcrsicae , 
and Smpoasca f abac Harr. 
GOFF, C. C, and TISSOT, A. N. (2346) 
1932. THE MELON APHID, APHIS GOSSYPII GLOVER. Fla. Agr. Sxp't. Sta. 
Bull. 252, 23 pp., illus. [Abstract in Rev. Appl. Ent. (A) 21: 
42-43. 1933.] 
