Periodical Literature. 455 



For combating the pest the use of insect lime is commendable 

 when egg deposits are low, and in polewoods, especially of pine 

 and spruce mixed, when the two species are of equal height. 



In low, easily accessible stands gathering the moths is prac- 

 ticable. Other methods recommended or practiced are only condi- 

 tionally effective. 



The "polyeder" disease of the Nun is discussed by Dr. Wahl in 

 the same publication. 



Die Nonne. Centralblatt f. d. g. Forstwesen. April, May, June, 1909. 

 Pp. 145-172; 241-261. 



A similar piece of work to the above in 



Fighting which, however, more stress is laid on the 



the methods of combating the insect based upon 



Curculio. an extended series of trials with various 



means is published by Dr. Eckstein, namely, 



on the Pine curculio, Pissodes notatus, the warfare against which 



involves in Prussia an annual outlay of over $10,000. The beetle 



attacks the young plantations from one to twelve years old ; it 



flies May, June, but also in August ; winters hidden on the 



ground, chooses for ovi-deposition sickly trees injured by fire, 



"schutte" or otherwise, but not those badly infested with root 



fungi. 



To grow healthy stock is the best prevention, daily collecting 

 from plants and baiting billets, the method of combating. 



Die Bekampfung des Pissodes notatus. Zeitschrift fin* Forst- u. Jagd- 

 wesen. April, 1909. Pp. 209-232. 



A new method of baiting Curculios has been 



Baiting devised by forest guard Kissel. An earthen 



Curculios. pot, flaring inward, filled with water to 



which is added a strong smelling substance 

 (turpentine) is placed in the ground flush with the soil surface 

 and loosely covered. The beetles attracted by the smell, creep 

 through the surface litter to the pot and falling into it, die. The 

 cover is placed over the pot to prevent useful beetles from falling 

 into it ; these, it is found are not attracted by the smell and do 

 not approach the pot in the same manner. The pots remain 

 effective for several weeks. 



Der Russelkafer-Fangtopf. Allgemeine Forst- u. Jagdzeitung. Sep- 

 tember, 1909. P. 325. 



