ft ;Pfui^gr,owi fig. under Irrigation 



spot is now generally taking its place, and spraying 

 outfits made of more or less non-corrosive materials 

 are being used for this purpose. 



To prevent injury to the buds, the swabbing or 

 spraying should take place before these start to 

 swell, and in an average season should not be later 

 than the middle of August. Badly affected vines 

 should be given two sprayings, one in July and the 

 other at the beginning of August. 



Of the varieties of the vine the one most suscep- 

 tible to the black spot is the sultana, while the 

 Malaga, Gordo, and Dorodilla are also often badly 

 attacked by this disease. The Zante currant, how- 

 ever, is very seldom severely affected. 



CURL LEAF IN PEACHES. 



This fungoid disease often attacks the leaves of 

 the peach and nectarine tree, causing them to curl 

 or "blister." When present in a severe form, the 

 disease causes the first leaves of the season to be- 

 come thickened and discoloured, and then to fall 

 off, while the second set of leaves is often produced 

 too late to fully mature the fruit. 



Treatment. Spraying the trees with Bordeaux 

 Mixture, just as the buds are opening. 



Bordeaux Mixture consists of a mixture made up 

 in the proportion of 6 Ibs. bluestone (copper sul- 

 phate), -1 Ibs. quicklime, and 50 gallons of water. 

 In making, first dissolve the bluestone in a wooden 

 vessel by suspending it in a piece of hessian. and 

 allowing the water to just cover it. When the 

 bluestone has all dissolved, which will take some 

 hours, dilute the solution down to 25 gallons. The 

 lime is dissolved in a separate vessel. The solution 

 is then strained through a fine sieve or piece of hes- 

 sian into a larger vessel or cask, and is diluted down 

 to 25 gallons. The two solutions are then mixed 



