THE BOTANY OF THE APPLE TREE. 29 



Nothing. 



Six correspondents did nothing, and seven gave no answers to this 

 question. 



FOURTH QUESTION. Have you noticed anything in regard to lo- 

 cality, slope, altitude, protection, soil, etc., that favors or checks the 

 disease? 



Conditions Favorable to Blight. 



"Trees in rich and hot moist localities," reported by seven corre- 

 spondents as " blighting the most.' 7 Two correspondents reported 

 " blight worst in wet seasons." Six correspondents said " trees pro- 

 tected by timber belts so as to prevent free circulation of air blighted 

 most." Three reported "southern slopes favorable to blight," and 

 one reported " severe pruning followed by the disease." 



Conditions Unfavorable to Blight. 



Five correspondents reported "trees on high rolling ground" as 

 " least affected." Five correspondents reported "trees on northern 

 slopes not so badly affected as those on southern slopes." The three 

 who reported against southern slopes should be considered here, mak- 

 ing eight in favor of northern slopes as opposed to southern. One 

 correspondent said that " a wind-break on the south of the orchard 

 aids in reducing the blight." 



FIFTH QUESTION. Are young and old trees affected to the same 

 degree ? 



Twenty-two correspondents reported "young and old trees affected 

 to about the same degree." Six correspondents reported "young trees 

 most affected." Four reported "old trees most affected." Sixteen 

 correspondents gave no answers to this question. 



SIXTH QUESTION. What did you estimate your annual loss to be 

 by this disease? 



Seven correspondents reported "loss small on account of destruction 

 of diseased parts." Two reported "loss small on account of planting 

 non-blighters." Eleven correspondents reported an average loss of 

 "five to ten per cent." More than ten per cent (fifteen -to fifty), 

 mostly in the nursery row, reported by five correspondents. "Loss 

 small with no care taken," reported by two correpondents. Four cor- 



