1108 



THE FRUIT INDUSTRY IN XKW YORK STATE 



With very susceptible varieties, such as the St. John, especially 

 when it is grown for a fancy market, it would he advisable to make 

 a spraying to check the disease. For this purpose no better spray 

 could be used than Scott's self-boiled lime-sulphur mixture* which 

 is made as follows : Fresh stone lime, 8 pounds ; sulphur (flowers 

 or flour), 8 pounds; water, 50 gallons. 



Usually mo-re than 50 gallons are needed, and in such a case 

 the above formula can be made 32-32-200. The lump lime 

 can be placed in a barrel and enough water added almost to cover 

 the lime. As the lime begins to slake, the sulphur from which all 

 lumps have been sifted should be added. More water also is 

 added to keep the mixture from burning dry. When natural boil- 

 ing by the lime ceases, the remaining amount of water should be 

 added and the application made. If properly prepared, the mixture 

 should not burn the foliage. 



Hole of Pea-cli Foliage 

 This disease is rather prevalent in some years. In 1897, Dr. 

 B. M. Duggarf noted an instance of shot-hole effect on peach foliage 

 due to weather conditions. In his notes of that date Dr. Duggar 



states: "An examination of 

 specimens of various fungi af- 

 fecting the peach and plum will 

 show that, with the exception of 

 leaf curl, mildew, and a few 

 others, these fungi are very gen- 

 erally productive of a shot-hole 

 effect.-' He also adds: "This 

 shot-hole effect is a peculiar 

 physiological reaction of plant 

 injuries of many kinds." 



In 1 900, Professor F. C. Stewart's attention was called to th< 

 shot-hole effect in peach orchards about Marlboro in the Hudsoi 

 River section. Professor Stewart stated : " Certainly, the trouble 

 was not of fungous origin. We believe it was brought about by 

 weather conditions." 



KFC. 353. SHOT-HOLE EFFECT 

 ox PEACH FOLIAGE 



:: Bui. 174, 1910, U. S. Dept. of Agr. 



j- Bui. 164, 1899, Cornell Univ. Agr. Exp. Sta. 



