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HERBERT, E. 3. (2482) 
1927. RAPID SPRAYING VERSUS DUST IMG IN THRIPS CONTROL. Jour. Econ. 
Ent. 20: 665-567. [Abstract in Rev. Appl. Ent. (A) 16: 118. 1928.] 
A liquid nicotine spray costs less, penetrates better and its 
effect persists longer than a nicotine dust. The spray consisted of 
1 1/2 gal. distillate emulsion, and 3/4 pt. 40-percent nicotine sul- 
phate to 100 gal. water, and 2 gal. were applied to each tree. The 
dusts (8 percent Nicodust) were applied at the rate of 50 lb. per acre. 
Both killed the pear thrips ( Tacnio thrips inconsequens Uzel. ) on prunes 
in California. 
ANONYMOUS (2483) 
1933. ENTOMOLOGICAL INVESTIGATIONS. Nursery Market Gard. Independ. 
Devlpmt. Soc. Expt. Res. Sta. 18th Ann. Kept. 1932, pp. 49-57. 
[Abstract in Rev. Appl. Ent. (A) 21; 487-488. 1933.] 
E. R. Speyer reports that the application of a dust of 6 02. 
naphthalene and 0.3 fl. oz. nicotine to the floor of a glass house 
of 1,500 cu. ft. capacity killed approximately all the males and 80 
percent of the females of Thrips fuscipennis Hal. and T. major Uzel. 
It also killed T. tabaci Lind. on Arum flowers almost instantaneously, 
and gave good results against Hercothrips ( Heliothrips ) femoral is 
Reut. (hothouse thrips). 
0; B. Orchard reports that of numerous chemicals tested against 
the myce tophi lids (P lastosciar a perniciosa Edw. and Pnyxi a scabie i 
Hopk) , which cause serious damage to cucumbers in pots, a 0.001 per- 
cent nicotine spray was the most effective. 
EVANS, J. H. (2484) 
1932. THE BIONOMICS ACT ECONOMIC IMPORTANCE OE THRIPS IMAGINIS 
BAGNALL, WITH SPECIAL BEESRENCE TO ITS EFFECT ON APPLE PRODUCTION 
IN AUSTRALIA. Pamphlet Council Sci. Indus. Res. Aust., No. 30, 
48 pp., illus. [Abstract in Rev, Appl. Ent. (A) 20: 601-603. 1932.] 
Two propietary dusts, one of nicotine-tar and the other of 
pyre thrum gave satisfactory results against this thrips on apples 
(p. 603). 
WARD, K. M. (2485) 
1932. THE CONTROL OF THRIPS. RESULT OF FIELD TESTS. Jour. Dept. Agr. 
Victoria 30 (3): 113-117, illus. [Abstract in Rev. Appl. Ent. 
(A) 20: 399. 1932.] 
A proprietary dust, consisting mainly of nicotine sulphate 
in a dolomite lime base, was applied to raspberries two or three times 
a week against Thrips imaginis Bagn. from the beginning of the flower- 
ing period to the time when the thrips had decreased to harmless 
numbers in the untreated plots. It caused a mortality of about 90 
