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Packing Fine Adams County Applks. 

 (Mammoth Black Twig.) 



LIME-SULPHUR PREPARATIONS FOR THE SUMMER 

 SPRAYING OF ORCHARDS. 



W. ^l. Scott. United States Department of Agrieultiire. 



I. Dilute Lime-Sulphur Solution for Apple Diseases. 



Bordeaux mixture has been the standard fungicide for the con- 

 trol of apple diseases since spra3dn^^ apple orchards came into 

 vogue. It has made profitable apple growing possible, where it 

 would otherwise have been a failure, and has been the means of 

 untold wealth to the commercial apple grov/ers of the country. 

 It has formed practically the sole remedy for apple scab, bitter 

 rot and various apple leaf-diseases, and has been universally used 

 on grapes, potatoes and other crops. In recent years, however, 

 there has developed a very serious objection to the use of Bordeaux 

 mixture as a fungicide on apples owing to the injurious effect it 

 produces on both fruit and foliage. The fruit of many varieties 

 like the Ben Davis and Jonathan becomes russeted and often dwarf- 

 ed and distorted from the toxic action of the copper in the Bor- 

 deaux. This injury is produced mainlv by the applications made 

 within three or four weeks after the blossom petals fall and is 

 especially serious in a wet spring. Mid-summer or late spraying, 

 such as is reciuired for bitter rot, rarely russets the fruit, the skin 

 at that time having become tougher and more resistant. The skin * 

 of the young fruit is injured by the copper and as the apple de- 



