- 565 - 
MULLSR-TKURGAU, H. ... (1550) 
1918. NOTES CN COMBATING THE FIRST AND SECOND GENERAT I ONS . OF THE VINE 
MOTH, CLYSIA AMBIGU3L LA IN SUMMER. Schweiz. Ztschr. Obst. u. TJeinbau 
27 (11): 165-170. [Abstract in Rev. Appl. Snt . (A) 6: 381. 1918.] 
The use of arsenicals is deprecated in favor of nicotine. Spray- 
ing against the second generation should take place ah out 3 days after 
the chief flight. The solution should contain a minimum of 0.13 per- 
cent nicotine and though the addition of 1 percent soap may permit a 
less amount to he used such a reduction is not advised. Bordeaux 
mixture may "be used as a carrier. 
FEYTAUD, J. (1551) 
1919. EXPERIMENTS IN LATE ARSENICAL TREATMENTS AGAINST PO LYCHROSIS 
30TRANA . Ann. Serv. Epiphyties 6 (1918): 313-319. [Abstract in Rev. 
Appl. Ent. (A) 9: 27. 1921.] 
The efficacy of arsenicals against the second generation is 
very inferior to that of a preventive nicotine treatment made 
toward the end of July. It is suggested that an arsenical or 
nicotine preventive treatment be given before the blossoming to 
destroy the eggs and larvae of the first generation, this being 
followed by a preventive nicotine treatment against the eggs and 
larvae of the second generation. 
FASS, H. (1562) 
1920. LA LUTTE CONTRE LE VSR DE LA VIGNE (COCHYLIS) EN 1919. Terre 
Vaudoise 12 (25): 240-242. [Abstract in Rev. Appl. Ent. (A) 8: 
400. 1920.] 
The best means of combating Olysia ambi.ruella in the canton of 
Vaud consists in spraying the first generation of caterpillars with 
pyrethruin soap and then spraying the eggs laid by the second genera- 
tion adults with nicotine. 
LUSTNER, G. (1563) 
1920. THE SCIENTIFIC AND PRACTICAL EXPERIMENTS HITHERTO MADE IN THE 
PRUSSIA*! VINE-GR0T7IN& DISTRICTS FOR THE PURPOSE OF . CHECKING TEE 
FIRST AND SECOND GS3ERASI0NS OF 'TEE VINE MOTHS. Centbl . Bekt. 
Parasitologie u. Infcctionskr . 2 Abt . , 50 (1-4): 88-175. [In 
German. Abstract in Rev. Appl. Ent. (A) 8: 522. 1920.] 
Nicotine (1 to 1 l/2 percent) is of practical value on a large 
scale for the control of the vine moths Clysia ambiguella and 
Polychrosis botrana . Tobacco dust was less effective than the liquid 
extract. Nicotine soap is more effective against the second generation 
than against the first. Its use does not give any unpleasant taste or 
smell to the grapes. 
