Nov. 15, 1919 



Nature and Control of Apple-Scald 



235 



Linseed oil and castor oil injured the skin of the apples wherever the 

 wrapper was in close contact with the fruit. 



The tests reported in Table XVI were made in a commercial cold- 

 storage plant at Wenatchee, Wash. The apples were packed in boxes, 

 one layer of apples being used for each treatment with a thick layer of 

 newspapers between lots. The Grimes apples were stored September 18, 

 were removed to a temperature of 20° C. (68° F.) on February 6, and the 

 final notes taken February 15. The Stayman Winesap apples were 

 stored October 12 and the Rome Beauty October 10. The Stayman 

 Winesap apples were in storage two weeks before the fruit was wrapped. 

 The apples of both these varieties were removed to a temperature of 20° 

 C. (68° F.) on March 15 and the final notes taken March 24. 

 Tabi,E XVI. — Box apples wrapped and unwrapped 



The tests reported in Table XVII were made with eastern barreled 

 apples. Only about one-third of the apples of the barrel were wrapped. 

 The barrels were filled approximately half full of unwrapped apples, a 

 bushel of wrapped apples added, and the remainder of the barrel filled 

 with unwrapped apples. The Grimes were from Vienna, Va., and were 

 placed in commercial cold storage at Washington, D. C, on September 

 18. The York Imperial were from Winchester, Va., and were placed in 

 commercial cold storage at that point on October i. The apple-scald 

 notes on the Grimes were taken December 20 and those on the York 

 Imperial March 12. Both lots were held at a temperature of 20° C. 

 (68° F.) for a period of three days before the notes were taken. See 

 Table XVII. 



The results in Tables XV, XVI, and XVII give conclusive proof that 



there is a wide range of materials that are capable of absorbing the 



harmful substances produced in apple storage. With some of the 



materials, such as oatmeal and granulated cork, a part of the good 



1347940—19 5 



