174 



Cold Storage of Apples. 



[June, 



or churned every now and then until a thick, buttery mass 

 has resulted. For use dilute with water according to the 

 strength of the plants to be treated, thus : i part of the stock to 

 i o parts of water for strong plants, I to 15 for not so strong 

 plants, and 1 to 35 for tender plants. It is safer to syringe 

 afterwards with cold water. 



{2). A mixture of infusion of quassia chips and tobacco juice 

 is also fairly satisfactory, but whatever spraying mixture is used — 

 and a good douching with soap and water is often satisfactory — 

 care must be taken that the application is thorough, and that 

 the under sides of the leaves are not neglected. 



Sulphur mixed with water, so that it can be painted on the 

 hot water pipes, is often used in conservatories. In this use of 

 sulphur care must be taken to maintain a proper moisture in 

 the greenhouse. Apart from the danger of this treatment if 

 the atmosphere be dry, one of the great causes of the prevalence 

 and multiplication of red spider is overheating and over-dryness. 

 Where "forcing" has to be done and the temperature is 

 .therefore high, attention must be paid to keeping a moist 

 atmosphere. In cases where the above remedies are adopted, 

 the Board will be glad to learn how far the suggested measures 

 prove successful. 



The investigations which are being carried out by the United 

 States Department of Agriculture in regard to the cold storage 

 of fruit and vegetables have been referred 

 Cold Storage of to m P rev i° us numbers of this Journal* 

 Apples. A report has now been issued on the cold 



storage of apples, a practice which is. 

 largely adopted in the United States and Canada, in order to 

 extend the period during which the apples can be kept in good 

 condition. The investigations tend to show that an apple 

 should be fully grown and highly coloured when picked, in 

 order to give it the best keeping and commercial qualities. An 

 exception appears to exist in the case of certain varieties from 

 rapidly growing young trees. Such fruit is likely to be over- 



* Journal, Vol. IX., Mar., 1903, p. 516. Vol. X.,I>ec, 1903, p. 398.. 



