- 517 ~ 
A peculiar type of fruit injury following the use of nicotine 
tannate on apples was not duplicated \7hen three varieties of apples 
were sprayed with nicotine tannate four times during July and August 
to control the codling moth. Observations indicate that the injury 
occurs when the fruit is young and relatively easily injured. Evi- 
dence points to the presence of tannic acid as "being responsible 
for the injury and that an excess of free nicotine in the early cover 
sprays will reduce the amount of injury. 
FARLEY, A. J. (2187) 
1333. SOME EXPERIENCES WITH SPRAYING AND SPRAY RESIDUE REMOVAL IN NEW 
JERSEY. N. Y. State Hort. Soc. Proc. 78 (1933): 87-92. [Abstract in 
Rev. Appl. Ent. (a) 21: 317. 1933.] 
Methods are described of washing fruit, and the use of a nicotine 
tannate spray (Rev. Appl. Ent. 19: 358) is suggested for certain varieties 
likely to he damaged in washing. 
MACCREARY, D. (2188) 
1933. THE EFFICIENCY OF CERTAIN PROPRIETARY OIL EMULSIONS, VOLCK AND 
ORTHOL-K, FOR THE CONTROL DP THE ORIENTAL FRUIT MOT"" Del. Agr. Expt. 
Sta. Bull. 184, 43pp., illus. [Abstract in Rev. Appl. Ent. (A) 22: 
470-471. 1934.] 
tTnen thorough coverage is obtained in the laboratory, summer 
oil (above 1/2 percent) combined with nicotine tannate or nicotine 
sulphate kills practically all the eggs of the above moth. A com- 
bination of 2 percent summer oil, lime (decreasing from 32 to 4 lb, 
in successive applications) and 1 pt . nicotine sulphate to 100 gal. is 
apparently the most effective spray to reduce infestation of this 
insect on peach trees. 
RICHARDSON, H. H., and NELSON, R. H. (2189) 
1933. FIELD CONTROL OF THE GLADIOLUS THRIPS ( TAENI OTHRIPS GLADIOLI M. & 
S.) Jour. Ent. 26 (3): 546-554. [Abstract in Rev. Appl. Ent. (A) 
21: 456-467. 1933.] 
A paris green and brown sugar spray was far more efficient than 
one consisting of l/2 pt. nicotine solution (50-percent), 1 lb. tannic 
acid, and 1 lb. ferric oxide-skim milk in 50 gal. water. A spray con- 
sisting of 2 qt. pine-tar oil, 6 f 1 . oz. 40-percent nicotine sulphate and 
8 gal. water, as well as a nicotine sulphate- so ap spray, had a distinctly 
injurious effect on the gladiolus plants. A spray consisting of 12 fl 
oz. white oil, 1 fl.oz. nicotine sulphate and 8 gal. water was effective, 
but did not approach the paris green and brown sugar spray in efficiency. 
RICHARDSON, C. H., and THURBER, G. A. (2190) 
1933. FURTHER STUDIES ON THE RELATIVE TOXICITY OF POISONS FOR GRASSHOPPEF 
BAITS. Jour. Econ. Ent. 26 (2): 494-499. [Abstract in Rev. Appl. Er.t. 
(A) 21: 341-342. 1933.] 
