39 



twigs, ami received in all over ."i^iKOOO twigs, making^a total of 

 3,0(.X),0(K) twigs distributed during three years. It seems i^robable that 

 ProspaUelh berlesei is now sufficiently established to check effectuall\' 

 the invasion of AuJacaspis (Diaspis) pentagona, and tlie distribution of 

 parasitised twigs will probably be discontinued at the end of the current 

 Tear. 



CoRTi (G.). Pulgones del duraznero y del manzano. [Peach and Apple 

 Aphids.] — Gaceta Rxntl, Buenos Aires, x, no. 3, October 1916, 

 p. 159. 



For the destruction of Aphis amtjijdaU, two sprays are recommended ; 

 the first, for application as a preventative against the hatching of the 

 eggs, should be used in the winter and consists of 1 gal. kerosene, 

 about I'J lb. thick milk of lime and 20 gals, of 3 per cent. Bordeaux 

 mixture. The last-named ingredient is prepared from sulphate of 

 copper, G lb. ; milk of lime, or recently slaked lime, 6 lb. ; w^ater, 

 20 gals. The copper sulphate .should be dissolved in hot water in a 

 wooden vessel, the milk of lime, mixed in another vessel, should be 

 added gradually, and lastly the water. The kerosene must be added 

 while constantly stirring, until an enmlsion is formed. For the second 

 spray, used in the spring after hatching, from one to one and a half 

 pints of tobacco juice, 1 lb. soft soap, and 20 gals, water, make an 

 effective solution. 



P]6b-Laijy (L.). Pourse debarrasser des Vers Blancs. [How to destroy 

 Cockchafer Larvae.] — La Vie Agric. Rur., Paris, xi, no. 47, 

 18th November 1910, pp. 379-380. 



Several methods for the destruction of the larvae of MehlonOui 

 are reconunended, including the injection into the soil of carbon 

 bisulphide, about 3 cwt. to the acre, preferably in sununer or autumn, 

 and the use of calcium carbide, which is distributed along the furrow 

 made by the plough and covered by the earth from the next. Fowls 

 allowed to run on newly ploughed land will devour the grubs in large 

 quantities. Land which cannot be treated by these methods, must be 

 left fallow for a year or two and thoroughly cultivated before planting. 



Feytaud (J.). L'Essaimage du Termite Lucif uge. [Swanning of the 

 Termite, Leucoterrnes lucifugus, Rossi.]— £?///. Soc. Etude Vulg. 

 Zooi Agric, Bordeaux, xiv, nos. 9-10 «fe 11-12, September- 

 October & November-December 1915, pp. 05-68 & 82-84. 

 [Received 24th November 1916], 



Swarming in this species of termite takes place only once in the year 

 and occurs in Gascony during the latter half of May. From obser- 

 vations made during and after the swarming, the author is convinced 

 that the termites are capable of pairing and oviposition immediately 

 upon emergence from the nest during a swarm, and also that couples 

 of imagines are capable of forming new nests without the assistance 

 of workers, themselves becoming the kings and queens of the newly- 

 formed colony. Thus two methods of propagation occur, by the 

 formation of subsidiarv colonies and by swarming. 



