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VINET, E. (3132) 
1913. INSECTICIDES IN VITICULTURE; ESPECIALLY AGAINST CDISIA a.B IGUELLA , 
PGLYCHEQSIS BOTR^Na, HALTJ^CA, AND THE CIGARETTE BEETLE. Bull. 
Soc, Agr. France, pp. 357-363. [In i'rench. Ads tract in Rev. 
Appl. Ent. (A) 1; 311-312. 1913.] 
Internal arsenical and nicotine poisons employed against vine 
moths may act on the adult insect, larvae, or eggs. Against the 
adults they are insect if uges, and their chief effect is to reduce 
oviposition, this being especially marked when nicotine is used; 
whereas against the cigarette beetle and Haltica lead arsenate is 
much superior. Bordeaux mixture is said to kill the eggs, "but 
nicotine has unquestionably a very definite abortive action. Nico- 
tine acts sometimes as a contact and sometimes as a stomach poison 
against the larvae. One or two sprays with nicotine destroyed 70 
to £0 percent, and the larvae that survived developed normally and 
committed the usual amount of destruction; whereas a very similar, but 
more uniform, result was obtained with lead, arsenate and the larvae 
whicn escaped the poison never developed properly. 
SCHWARTZ ' (2133) 
1915. NICOTINE AS AN INSECT POISON. Mitt. K. Biol. Anst. Land u. Porstw. 
8: 36-57. [In German. Abstract in Rev. Appl. Ent. (A) 2: 50. 
1914.] 
Laboratory tests were made to ascertain the effect of nicotine 
and its salts Uyon insects. Besides pure nicotine the following 
salts of it were used: Lactate, acetate, trichloracetate, and 
nitrate. All of these substances, in 0.015 percent solution, acted 
as a skin poison on aphids ( Rho palo s iphu m ribi s) . Solutions contain- 
ing 0.02o percent of the substance Killed 93 to 98 percent of the 
aphids. As an internal poison, 0.05 percent solutions were effective 
on 5 species of caterpillars, Vanes sa p olychloros , V. io, and Grgyia, 
ant i qua ; and 0.2 percent solutions on 2 other species of caterpillars, 
( Lymantria Po rthetria dispar and Stilpnotia salicis;and 1 percent solu- 
tions on Lalacosom a neutria . Poisoned food a.ffected only two of the 
■ first-mentioned species (V anessa io and V. polychloro s) . In the causes 
where the caterpillars of these species ate leaves sprayed with nicotine 
compounds, they pupated imperfectly, and in no cases were butterflies 
produced from them. The spray solution used was 0.05 percent in 
strength. The difference in action of the several compounds of nico- 
tine used was not determined. 
DOBROEEEV, A. I. (2134) 
1915. CLYSIA ALBIGUELIA KB. AND POLYCHROSIS 50 THAN A SCRIPT. AND 
kniTHODS OP CONTROLLING THEk ACCORDING TO THE L^TEbT RESEARCHES, 
mem. Bur. Ent. Sci. Com. Cent. Bd. Lend Admin, and Agr. [Petrograd] 
11 No. 5, 37 pp. [In Russian. Abstract in Rev. Appl. Ent. (A) 3: 
209-212. 1915.] 
Nicotine destroys the eggs and acts also through the skin of the 
caterpillars. 
