427 



Papilio feisthartielii, Duponchel, has been found in the larval stage on 

 the apple, peach and sloe. The eggs are laid on the under surface of 

 the leaves. Two moults of the larvae, which hatch in about 8 days 

 are described, as also is the pupal stage, from which the adult emerges 

 in 14 days. Vanessa polychloros, L., was taken in large numbers from 

 elms, acacias and poplars ; elms have been completely defoliated by 

 the larvae. The variety erythromelas lives on pear and cherry, 

 occasionally on species of Salix. 



Degrully (L.). Contre la Pyrale. [Pyralis control] — Progres Agric. 

 Vitic, Monlpellier, Ixiii, (32nd year), no. 11, 14th March 1915, 

 pp. 241-243. 



To facilitate the destruction of Sparganothis pilleriana by crushing, 

 M. Et. de Courtois, of Aries, has constructed an instrument consisting 

 of a pair of pincers, the jaws of which are kept closed by a spring, and 

 to which two flat iron plates are attached. The instrument is said to 

 be very efficient. If the insects appear before the date when anti- 

 cr\"ptogamic treatment becomes useful, special sprays may be 

 necessary. The cheapest is a solution of sodium arsenate of from 

 1 per thousand \o 1*25 per thousand. This may cause scorching— 

 usually of no importance, but to avoid this a solution of lead arsenate, 

 consisting of 3 per thousand of sodium arsenate and 9 per thousand 

 of neutral lead acetate, may be used. If it be desired to combine 

 a copper treatment with the insecticide, the following is a good and 

 economical formula : dissolve A\ lb. copper sulphate in about 16 gals, 

 water, add |- lb. of sodium arsenate, and stir well ; neutralise with 

 weak milk of lime or sodium carbonate and make up to 24 gals. The 

 employment of insecticides must in no way be regarded as obviating 

 the necessitv for the use of mechanical methods of destruction. 



Lesne (P.). Lalutte contre I'Eud^mis et la Cochylis. [The campaign 

 against Polychrosis hotrana and Cbjsia (inibigneUa.] — Jl. cV Agric. 

 pratique, Paris, xxviii, no. 38, 11th March 1915, pp. 263-264. 



A big Algerian vine-grower, Isl. Paul Videau of Sidi-Aid, has for two 

 years successfully applied the following method against viiie moths : — 

 Instead of pruning the vine at the second knot, he prunes at the 

 eighth or ninth or even at one metre, just as if it were intended to 

 avoid frost injury. Once the vine has grown and the grapes appear, 

 the flight and oviposition of the moths are watched, and on the 

 disappearance of the moths the vine is pruned down to the second 

 knot. The debris must be collected and burnt. In his district (Mitidja), 

 M. Yideau advises that this latter pruning be carried out from the 

 15th to the 20th April at the latest, or even at the end of March in 

 certain years. 



Trabut ( — ). La Lutte contre les Sauterelles. [The campaign against 

 Locusts.] — Bull. Agric. Alqer. Tun. Maroc, Algiers, xxi, no. 3, 

 March 1915, pp. 53-74, 12 figs. 



This paper is a summary of present-day knowledge regarding locusts 

 in Algeria and the methods of control employed against them there. 



