CULTURAL METHODS IOK- PKAKS 1011 



is surer to grow, and givos more humus. Vetch and turnip will 

 ivsrnl themselves from year to year if a few plants are allowed 

 to grow. 



PEAR BLIGHT 



Blight spreads much faster when the trees are growing rapidly 

 and the tips are very green and soft. For this reason, if there 

 was an abundance of rain and the trees are growing fast in Junei, 

 I would sow the cover crop and stop cultivation, in order to retard 

 the growth and help check the blighj;. ,_ Ordinarily, however, if the 

 trees carry a heavy crop of fruit, or if the weather is very dry, it 

 would be better to cultivate as late as the latter part of July or 

 into August. 



So far as I know, nothing new has been learned of blight for 

 the past five years. For cause and treatment read Cornell Bulle- 

 tin Xo. 272 on blight of pears.* Many may think such treatment 

 is not practical, but I believe that I have kept blight in 

 check and that it pays well. Certainly, in a young orchard 

 where the branches may be easily reached, I should follow this 

 treatment, inspecting and cutting very thoroughly during the grow- . 

 ing season. 



It is very difficult to see all the blight in a tree in passing, on 

 account of the shadows, but if one inspects a certain part of the 

 orchard in the forenoon, and at the next inspection visits these 

 trees in the afternoon, his work will probably be much more 

 il" Tuiio'h, for he will have light in the afternoon where there. was 

 shadow in the forenoon. 



INSECT ENEMIES 



Tf the trees have San Jose scale, use a strong solution of lime- v 

 sulphur when trees are dormant. For codling moth, use arsenate"" 

 of lead after the blossoms fall. For fungous troubles it is better 

 to combine arsenate of lead with bordeaux than with lime-sulphur. 



T do not as yet know how to treat pear psylla effectively, f We 

 have used the methods recommended by the Geneva Station and 

 they admit we were thorough. We sprayed early in the spring 



* See article on page 1039, by Professor M. F. Barrus. 



t See article on pear insects by Professor P. J. Parrott, page 1019. 



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