1907.] Method of Drying Hay in Sweden. 



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were attacked by celery leaf blight, caused by Cercospora aftii, 

 Fr. Such plants should be sprayed at intervals of eight days, 

 commencing when the foliage is quite young, with an ammonia- 

 cal solution of copper carbonate. This solution should be pre- 

 pared by mixing 1 oz. carbonate of copper with 5 ozs. carbonate 

 of ammonia in about a quart of hot water. When thoroughly 

 dissolved, 16 gallons of cold water should be added. If 

 thoroughly done two or three sprayings should suffice to suppress 

 the disease. All diseased leaves should be burnt. 



Fungus on Plum Trees. — From Petersfield the Board received 

 specimens of plum trees which bore black incrustations on the 

 upper surface of the leaves. This was due to the growth 

 of a non-parasitic fungus (Capnodium Footii, Berk, and Desm.), 

 which develops on the " honey dew " deposited by aphides. 

 Aphides should be kept down as suggested in Leaflet No. 104. 



The same specimens were infested with the white mould of 

 Sphaerotheca mali, Magnus, to combat which half-strength 

 Bordeaux mixture should be used when the leaf-buds are 

 expanding. 5. mali is described in the September issue of this 

 Journal (p. 358). 



Other specimens received included brown rot of fruit (see 

 Leaflet No. 86) from Oakham ; European gooseberry mildew 

 (Leaflet No. 52) from Norwich, Cheddar, (Somerset), 

 Truro, Little Clacton, and Sittingbourne ; black scab of 

 potatoes (Leaflet No. 105) from Crieff, and Bootle (Cumber- 

 land) ; and potato disease, Phytophthora infestans (Leaflet 

 No. 23) from Stafford. 



The Board have received through the Foreign Office a note 

 on a method employed for drying hay in central and northern 

 Sweden, where the season is apt to be 

 Method of Drying very wet at the time of hay harvest. 

 Hay in Sweden. A number of light poles some 9 or 10 ft.' 



long are prepared, with pointed ends. 

 When the crop is cut, the poles are driven into the ground in 

 the field in lines of four or five, a yard or so apart. They are 

 placed in convenient places, and the two ends are strengthened 

 by a cross support (see Fig. 1). Tarred cord is then stretched 

 crosswise between the poles in three or four lines (Fig. 1) and 



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