218 

 DiNDON (P. J.). npoMbimneHHan Kyjibiypa paHHeii HanycTW. 



[Commercial cultivation of early cabbage.]— « CaflOBOfl'b.» [The 

 Horticulturist], Rostov-on-Don, no. 12, December 1914, pp. 893-896. 



Powdering cabbage fields with slaked lime, about 801b. to the acre, 

 is recommended as a means of preventing both the appearance of a 

 fungus, Plasmodiophora, and of flea-beetles, Phyllotreta atra and P. 

 undidata, and also of the cabbage fly, Chortophila {Anthomyia) brassicae ; 

 this is a most effective remedy against these pests and should be 

 apphed early in the morning, when the leaves are covered with 

 dew. Cabbages are also attacked by Pieris brassicae, the eggs of 

 which should be destroyed on the leaves in June. The Noctuid 

 moth, Barathra (Mamestra) brassicae, may be combated by destroying 

 its eggs on the leaves and by powdering the plants early in the morning 

 in calm weather with basic slag to which some Paris green is added 

 (l lb. of green to about 36 lb. of slag.) 



KaneHAapb PycCKaro CaAOBOfla. [Russian Horticultural Calendar.] 

 Supp'ement to « riporpeccMBHoe CaflOBOACTBO m OropoAHM- 

 HeCTBO.» [Progressive Horticulture afid Market-Gardening], Petro- 

 grad, 1915, 182 pp. 



The following recipes are given in this calendar — (1) Kerosene 

 emulsions (a) 24 lb. of kerosene, 10 lb. of green (potash) soap and 

 3-6 gals, of water, prepared as follows :— Boil the water and dissolve 

 the soap in it afterw^ards, gradually adding the kerosene and con- 

 stantly stirring the liquid ; the mixture must be dissolved in water 

 before use ; (6) 5 lb. of green soap, 5 lb. of kerosene, 5 lb. of linseed oil, 

 in about 23 gallons of water (the kerosene emulsion is prepared as above 

 after which the linseed oil is gradually added and the whole stirred) ; 

 this mixture, owing to the presence of oil, cannot be easily washed off by 

 water ; (c) 24 lb. of soda, 65 lb. of kerosene, 50 lb. of green soap, in 

 about 230 gallons of water ; the soap and soda are dissolved separately, 

 each in about 27 gallons of water, which are then mixed and the kero- 

 sene added and afterwards the remainder of the water. (2) Tobacco 

 extracts, all of which must be tested before use, in order to discover 

 whether they are harmful to the plants, in which case their strength 

 must be reduced— (a) 5 lb. of tobacco extract, 6 lb. of green soap, in 

 24 or 25 gallons of water ; the soap is dissolved first in some boiUng 

 water and the remainder of the water added, the tobacco extract 

 being well stirred in after this ; (6) 2| lb. of tobacco extract, 2| lb. 

 of green soap, ^ lb. of soda, 2 lb. of denaturahsed spirits, in about 23 

 gallons of water ; the soap is dissolved in the spirit, the soda in water, 

 and the two poured into a container at the same time and the extract 

 added. (3) Arsenicals : S^oz. of Paris green, fib. of wheat flour, 

 in 27 gallons of water ; a paste is prepared from the green and flour 

 with water so that no lumps are present ; (6) 5i oz. of Paris green, 

 1 lb. of freshly slaked lime, i lb. of wheat flour in 27 gaUons of water. 

 (4) Adhesives for trap-belts, etc. : {a) 2| lb. of white resin, 1| lb. of tur- 

 pentine, 1| lb. of linseed oil, U lb. of olive oil ; the resin and linseed oil 

 is melted on the fire and the other ingredients well stirred into it ; 

 (6) 1 lb. of gas tar, 1 lb. of fish oil. 



