396 



proved to be the most effective ; (d) 10% of carbol and 10% of soft 

 soap in water ; (e) If % of tobacco and 7% of soft soap in water, which, 

 however is troublesome to prepare properly and chokes the sprayer ; 

 (/) 2% of carbolineiim and 2% of turpentine in water. 



KuLAGiN (Prof. N.). Ktj Bonpocy o 3afla4ax-b iJieHipanbHaro 3htomo- 

 jiorMMecKaro Owpo MMHMCTcpcTBa aewnefltjiifl. [On the Question 

 of the Aims of the Central Entomological Bureau of the Ministry 

 of Agriculture.] — « 3eMJiefl'fenbHeCKafl raaeia.n [Agricultural 

 Gazette], Petrograd, no. 42 (158), 18th October 1916, pp. 1097-1098. 

 [Keceived 13th July 1917.] 



The existing Bureau of Entomology of the Scientific Committee of 

 the Ministry of Agriculture is engaged chiefly in purely scientific 

 research work on the biology and control of insect pests. The same 

 kind of work is done also by the local Entomological Stations, the 

 results achieved by the latter being even more valuable as being more 

 in contact with local requirements, possibilities and conditions. The 

 essential requirements of Applied Entomology in Russia necessitate the 

 creation of a Central Entomological Enquiry Bureau, to reply to 

 enquiries of local workers, to assist them in identifying insect pests 

 and supply them periodically with reviews of the most important 

 works in this branch. 



Destruction of Ants. — Revista Nac. de Agriadtura, Bogota, November 

 1915. [Received 2nd July 1917.] 



The following methods are recommended for dealing with ants. 

 Quicklime or fire ashes may be poured on to the ant-hill, or a strong 

 decoction of walnut leaves may be allowed to soak into the ant-hill 

 and cover it. Damp rubbish may be burned over the ant-hills late in 

 the afternoon. In order to prevent the ants reaching fruit trees, the 

 base of the tree should be girdled round by a band about 2 ft. wide of 

 liquid pitch covered with charcoal powder, or by a band of woven 

 horse-hair. Bee-hives may be kept free from ants by surrounding 

 them with fish scraps, or by putting around each a cord soaked in 

 linseed oil to which some lamp-black has been added. Rooms and 

 furniture can be kept immune by sprinkling with a solution of 10 grams 

 of naphthaline in 50 grams of benzine. All cracks should be filled up 

 with plaster of Paris or cement. 



(Smith Longfield). Control of Strategus Grubs. — Report Agric. Expt. 

 Sta. in St. Croix for the Year 1914-1915, St. Croix, pp. 24 & 30. 

 [Received 2nd July 1917.] 



The large white grub of the Dynastid beetle, Strategus titanus, is the 

 most serious pest of sugar-cane in St. Croix. The control recommended 

 is a poison-bait composed of 3 lb. Paris green mixed with water, and 

 sprinkled on 100 lb. of fine megass by means of a watering-can until 

 an intimate mixture is obtained. A small handful of this bait should 

 be placed at intervals of about 3 feet in the banks containing the pen- 

 manure, before covering with the plough. In badly infested fields 

 the bait should also be placed in the cane-furrows. 



