750 AgricuUural Gazette of N.S.W. [Oct. 2, 1920. 



Young Trees. 

 All young trees should be examined periodically after they commence to 

 shoot. Choice should be made of the sti'ong shoots retjuired for the building 

 of the framewoi'k of the tree ; other strong shoots should be pinched back. 

 At this early stage it is safer only to pinch back such shoots rather than 

 brush them right off, in case they may be required to take the place uf any 

 other eho.sen shoots that become accidentally broken or destroyed. 



Dormant Buds and Grafts. 



Shoots from the stocks carrying dormant buds or grafts should be brushed 

 so that they will not sap the buds or grafts. On old trees that have been 

 worked, a few such shoots could be pinched back, leaving them till the buds 

 -or grafts have made sufficient growth to provide shade. 



As the growth of the buds or grafts become long enough they should be 

 supported by ties. In. the former, if a long stub of the stock is left this can 

 be used to tie the growth to, but if no stub is left, or in the case of grafts, a 

 light stake should be provided. In nursery stock this stake is driven into 

 the ground alongside the stock, and in top-worked trees it should be lashed to 

 the old arm of the stock. 



Black Spot of Orange. 

 Though Bordeaux mixture has given good control of this disease, the spray 

 iias a hardening effect on the tree and a coarsening effect on the fruit ; hence 

 it cannot be recommended. In districts where this disease occurs it makes 

 its appearance first and mostly on fruit exposed to the sun on the north-west 

 side of the tree. Hence growers in such districts should make their early 

 pickings from the exposed fruit on this side of the trees, leaving the fruit on 

 the other side for late hanging. 



Prices tor Queen Bees. 



The prices to be charged at Hawkesbury Agricultural College and Wauchope 

 Government Apiary for queen bees during the coming season have been 

 fixed by the Under Secretary and Dir^'ctor as follows : — Untested (ordinary), 

 7s. 6(1 ; untested (trom imported queens), 12s. Gd. ; tested (ordinaiy), i2s. ; 

 tested (from imported queens), 17s. 



A SPR.VY1NG Query. 



•CoNCKKNiNG the Spraying of grape vines for erinose, a recent correspondent 

 ■wrote: — "We like to spray as late as possible with dilute sulphuric acid. 

 W(nild .-pra3'ing first with lime-sulphur neutralise the sulpliuric acid spi'ay 

 used later and make it inellective?" The writer was infoinied that the 

 •.sulphuric acid solution should not be applied inmiediately after the lime- 

 sulphur, l)ut at an interval of two or three weeks, when there would be no 

 risk of neutralisation. 



