126 Agricultural Experiment Station, Ithaca, N. Y. 



rarely seen any serious attack before the first of July, and sometimes 

 it is nearly the first of Autrust before much injury is done. These 

 later attacks cause the fruit to appear spotted with small, nearly 

 black, sunken places which do not materially affect the form of the 

 •quince, but which nevertheless disfigure it. The fungus thrives 



14. — A.ngers quince, not sprayed. 



in warm, damp weather, and its appearance and severity are largely 

 dependent upon these conditions. 



The treatment of this disease is simple and effective. Some good 

 fungicide, as the Bordeaux mixture or the ammonical solution of 

 ■copper carbonate should be sprayed upon the trees early in the sum- 

 mer, the date of the first application depending upon the season. 

 Fig. 14 shows an unsprayed Angers quince tree, while Fig. 15 

 shows one which was treated. This received application of the 

 Bordeaux mixture May 18, June 6, June 28, July 16 and August 2. 



