- 353 - 
JEGEN, G. (1573) 
1923. CONTRIBUTIONS TO A KNOWLEDGE OF THE SPRING AND SUMMER GENERATIONS 
OF VINE MOTHS AND THEIR CONTROL T7ITH PARTICULAR REGARD TO ARSENICAL 
COMPOUNDS. Schweiz. Ztschr. 0"bst. u. Ueinbau 32 (2-6): 30-35, 49-53, 
•55-59, 79-84, 97-93, illus. [in German. Abstract in Rev. Appl. Ent . 
(A) 11: 255. 1923.] . 
Nicotine has been largely used, but if the summer generation is 
to be checked it is necessary to spray the bunches and this insecti- 
cide may delay ripening and affects the flavor. 
CONSOLANI, G., and DALMASSO, G. (1574) 
1924. A BRILLIANT SUCCESS IN THE t70RK AGAINST VINE MOTHS. Contadino 
della Marca Trevisana. Reprint, 14 pp., illus. [in Italian. Abstract 
in Rev. Appl. Ent. (A) 12: 339. 1924".] 
Calcium arsenate controlled the spring generation of Polychrosis 
botrana Schiff. so effectively that very little spraying with nicotine 
(3-percent solution) was needed. for the second generation. 
VINST, E., et al. (1575) 
1924. THE FIGHT AGAINST THE VINE MOTH IN ALGERIA. Rev. Agr. Afr. Nord. 
22 (241): 161-176, illus. [Algiers] [In French. Abstract in Rev. 
Appl. Ent. (A) 12: 195. 1924.] 
The spring treatment of sodium arsenate should begin as soon 
as the moths ( Polychrosis botrana Schiff.) begin to fly, 2 or 3 ap- 
plications being made before the flowering of the vine, and should 
be followed by sprays of copi->er sulphate and nicotine or of pyrethrum- 
soa.p solution directed against the eggs and larvae of the 2nd and 3 rd 
generations. 
GORJAT, R. (1576) 
1925. ETUDE COMPARATIVE DSS DIFFERENT S MCYENS DE LUTTE CONTRE LES VERS 
DL LA VIGNE. Terre Vaudoise 17 (52): 767-759; 1G (l and 2): 9-10, 
21-23. [Abstract in Rev. Appl. Ent. (A) 14: 117. 1926.] 
Disbudding shoiild be practised before the treatment against the 
first generation of vine moths ( Clysia ambiaruella Kb. and Polychrosis 
bp trana Schiff.) with nicotine or pyrethrum. For use against the second 
generation an insecticidal powder to supplement nicotine treatment is 
needed. 
MAETELLI, G. (1577) 
1925. THE VINE MOTH, POLYCHROSIS BOTRANA SCHIFF. R. Jsserv. Fitopat. 
per le Puglie Circ. 4, 3 pp. [In Italian. Abstract in Rev. Appl. 
Ent. (A) 13: 266-267. 1925.] 
