- 367 - 
As nicotine has risen to about forty times its pre-war price 
in Germany, arsenicals are being used to control the vine moths. 
DALMASSO, G. (1569) 
1922. WORK AGAINST THE VINE MOTHS. 86 pp., illus. Casale Monferrato. 
[In Italian. Abstract in Rev. Appl . Ent. (A) 10: 220. 1922.] 
About 8-10 days after the maximum number of moths [ Clysia 
(Conchylis) ambiguella Hb . and Poly chro sis (Eudemis) botrana Schiff .] 
has been noticed a first spraying is required with bordeaux mixture 
containing 1 percent of lead arsenate or 3 percent of a tobacco ex- 
tract containing 5 percent nicotine. About 10 days later a -second 
treatment similar to the first must be made. Two sprayings, 10 days 
apart, are again made in July. 
FASS, H., and STAEHELLN, M. (157 0) 
1922. LES TRAITELiENTS CONTRE LA COCHYLIS (VER DE LA VIGNE) EN 1921. 
Ann. Agr. Suisse 23 (l): 17-25. [Abstract in Rev. Appl. Ent. (a) 
10: 320. 1922.] 
The tests described confirm the efficacy of pyrethrum-soap and 
nicotine-copper sprays against Clysia ambiguella . The difficulty of 
determining the appropriate moment for nicotine treatment makes the 
pyrethrum-soap spray preferable against the larvae of the first genera- 
tion; nicotine on the other hand is indicated for the destruction of 
the eggs laid by the second generation. 
STELLT7AAG, F. (1571) 
1922. ARSENICALS, VITICULTURE AND PLANT PROTECTION. Ztschr. Angew. 
Ent. 8 (2): 427-436, illus. [in German. Abstract in Rev. Appl. Ent. 
(A) 10: 500. 1922.] 
Nicotine sprays proved very useful against vine moths ( C lysia 
ambiguella Hb. and Polychrosis botrana Schiff.). By 1915 nicotine was 
proved to be effective against both the spring and summer generations 
of the vine moths, but by 1917 tobacco products were too costly and 
almost unobtainable, and it became necessary to find a cheap and ef- 
fective insecticide. Arsenicals cost only a small fraction of that of 
nicotine, oan be ircorp orated in li/ae- copper spray, and satisfy all re- 
quirements. 
GES3NER (1572) 
1923. THE EIRST AND SECOND GENERATIONS OF VINE MOTHS IN BADEN IN 1922-23 
AND THEIR CONTROL. Badische Blatter f. Schadlingsbekampfung- 1 (l): 4-8, 
illus. [Abstract in Rev. Appl. Ent. (A) 12: 340. 1924.] 
Nicotine is considered to be the best insecticide for the vine 
moths Clysia ambiguella Hb. and Polychrosis b otrana Schiff. 
