60 



Remedies. Where branches are already badly scarred with canker 

 the best treatment is accomplished with the pruning knife or some 

 larger sharp tool. Cut out the scar as cleanly as possible. Cut 

 liberally. Remove wood until what is left has a perfectly sound 



appearance. This is a vital matter, and 

 it is better to overstep the limit than to 

 cut too little. The disease often exists 

 in fairly sound-looking wood. Little 

 fear need be entertained as to the life 

 of the branch, so long as it is not actu- 

 ally girdled. This may be a rather 

 Pig 75 sooty fungus growth on the strong statement, but it conveys the 

 SSSTtehSTSi S3? J$Z correct idea in the main. So long as a 

 fungus freshly removed from the f a i r connecting link of sound bark is lett 



"bark ; b, same growing in water. .. , , .iR . , T -. -. 



culture. the branch will not perish. If breakage 



is feared tie on a stiffener. After cutting 



away the unsound wood and bark disinfect the cut surface with Bordeaux 

 mixture or with a solution of bluestone, and when dry give it a good 

 coat of first-class white lead paint. The wound will soon begin to 

 heal over, and in time will become entirely covered with a growth of 

 new healthy bark. The tree meanwhile should have good care. 



PEACH CURL. 



[See Coloured Plate opposite, and also Coloured Plate opposite p. 38.] 

 FOEMEELY, in writing of this disease, I recommended treatment 

 with Bordeaux mixture, and laid special stress upon winter treatment, 

 pointing out that summer treatments which have to be made with the 

 weaker forms of the mixture, were of very questionable value, except 

 in so far as they might lessen the disease the next season. But while 

 invariably giving this treatment a place among the measures for 

 combating the disease, I have not been sanguine of satisfactory 

 results. I am very glad that I can see reason for changing my 

 tone in this matter, for I am able now not only to make the recom- 

 mendation, insisting strongly, as before, on the value of the winter 

 treatment, but to express the opinion that if the spraying be made at 

 the proper time and with sufficient thoroughness, the result will be a 

 decided success. This is owing to further inquiries incited by the 

 results of some very complete and long-continued inquiries and trials 

 conducted under the direction of Professor Newton B. Pierce, of Santa 

 Ana, California. I wish to make this matter as clear as possible, and, 

 with a view to doing so, will repeat here the entire article written 

 for our fruit-growers twelve years ago and printed in the Agricultural 

 Gazette : 



LEAF-CURL OR CURL-LEAF OF THE PEACH AND OTHER STONE-FRUIT TREES 



This is a disease that attacks the leaves and wood of stone-fruit trees, more 

 particularly the peach, to which it frequently does a great deal of damage. 

 The following remarks are intended to apply only to the disease as it occurs 

 on the peach-tree. 



This disease is of fungus origin, and is readily recognised in its severe 

 form, but often escapes notice in its mild form. It generally becomes 



