i 79 



water — used in accordance with M. Semichon's instructions. A fifth 

 plot was kept as a control. From whatever point of view the results 

 were considered, lead arsenate proved its superiority ; the adhesive 

 spray was also superior, for it produced a uniform coat. Nicotine 

 always occupied the second place, while hot water and lime took the 

 last two places, sometimes the one and sometimes the other proving 

 superior. The effect of arsenical treatment, carried out on 10th 

 August against the second generation, on the quality of the wine, is 

 reserved for a future paper. 



:^'^ Thompson (W. R.). Sur les caracteres anatomiques et 6thologiques 



"^ des Tachinaires du genre Plagia, Meig. [On the anatomical and 



ethological characters of the Tachinids of the genus Plagia, Meig.] 



— C. R. Soc. Biol., Paris, Ixxviii, no. 19, 17th December 1915, 



pp. 671-674, 1 fig. ^^' . 



The larval stages oi(Plagi^lrepida, Meig., parasitic on Noctuid 

 larvae, closely resemble those recorded by Pantel, of Plagia {Cyrto- 

 pJiloeba) ruricola, Meig., parasitic on Spintherops spectrum. The 

 anatomical characters of all stages of the larva of P. trepida are 

 described. 



Per distruggere i bruchi dei cavoli. [To destroy cabbage caterpillars.] 

 — II Picentino, Salerno, v, no. 1, January 1916, pp. 31-32. 



A 3 per cent, solution of common salt is stated to be a good spray for 

 Piens brassicae on cabbages. The cost may be reduced by emplojnng 

 the chemically treated salt supplied for agricultural purposes. 



Schneider- Orelli (0.). Ueber die Selbstherstellung des Raupenleimes. 

 [The home preparation of banding &dh.es,ive.]—Schweiz. Zeitschr. 

 Ohst.- u. Weinbau, Frauenfeld, xxv, no. 2, 25th January 191(3, 

 pp. 19-21. 



Two banding adhesives have been recommended in several publi- 

 cations and the formulae for them were recently published in the above 

 journal [see this Review, Ser. A, iv, p. 39]. They have since been 

 tested and found to be useless, as they both harden too quickly. It is 

 possible that the difference between European and American resins 

 is the chief reason for this failure. 



Keuchenius (P. E.). Waarnemingen over Ziekten en Plagen bij Tabak. 



(Tweede Serie). 1. Opairum depressum, F., 2. Gnorimoschema 



heliopa, Low., 3. De Tabaksmot, een nieuwe en ernstige plaag voor 



gefermenteerde tabak. [Observations on diseases and pests of 



Tobacco ; (1) Opairum depressum, F., (2) Phtliorimaea heliopa. 



Low, (3) the tobacco moth, a new and serious pest of fermented 



tobacco.] — Med. Besoekisch Proefstation, no. 9, 23 pp. (sine loco), 



1915. 



The life-history of Opairum depressum is described in detail. The 



eggs hatch in from three to five days and the young larvae were at 



first fed on tobacco roots, but, the supply failing, potatoes were used 



