584 



Le Doryphora de la Pomme de Terre [Leptinotarsa decemUneata, Sayj. 



— //. Agric. Prat., Paris, xxxviii, no. 29, 22nd July 1922, 



pp. 76-79, 1 fig. 



In view of the appearance of Leptinotarsa decemUneata, Say (Colorado 



potato beetle) in Gironde, and its probable occurrence in other parts 



of France, the importance of keeping watch for it is pointed out. 



Lesne's description of the appearance and habits of the insect is quoted, 



and the measures now being undertaken against it, as well as the 



legislation passed against its re-introduction and spread, are described 



[R.A.E., A, X, 536]. 



LoscH (H.). Ueber die Bekamphmg der Kaferplage in Weidenanlagen 



mit einem neuen Apparat. [Combating Beetle Pests in Willow 



Plantations with a new Apparatus.] — Zeitschr. angew. Ent., 



Berlin, viii, no. 2, May 1922, pp. 453-455, 2 figs. 



The apparatus for capturing beetles infesting willows illustrated below 



consists of two pieces of thin sheet metal, which face one another at 



such an angle that their upper edges are considerably further apart 



than the lower ones. Their edges are everj^vhere (except at the front) 



turned up so as to contain the beetles that fall into them. These twin 

 containers are fixed to a framework provided with a carrying handle 

 with grips at various heights, so that the distance from the ground at 

 which the apparatus is carried can be varied. A curved triangular beak 

 of metal is attached to the outside of the upper edges of the receptacles 

 in such a manner that the beak projects in front of and between 

 them. In use the apparatus is carried at the side of the operator. 

 As he walks along, the beak parts the \\dllows, which are forced to 

 bend beneath its sides and then pass along the channel between the 

 containers. The beetles fall into the latter and are so confused by 

 the continual beating of the willows that they do not try to escape. 

 About one acre can be covered in three hours, without injury to the 

 willows. 



