EXPERIMENT STATION BULLETINS. 295 



{M. alba). In severe winters it is occasionally injured, even in southern 

 Michigan. 



New American and Hicks also have this habit, with apparently superior 

 hardiness. 



Russian {31. Siberica of nursery catalogues) is abundantly hardy here, 

 though of no value so far as fruit is concerned. 



Tea's Weeping, when grafted high on upright growing stocks, makes a 

 beautiful lawn tree. The foliage is glossy and beautiful, much superior 

 to that of Kilmarnock willow, long popular as a weeping lawn tree. 



PEACHES {Prunus Fersica, Amygdalus Persica, or Persica Vulgaris of various 



botanists). 



The trees of this species upon the station grounds received a spray of 

 Bordeaux of the usual strength after the leaves had fallen last autumn. 



April 10 and 11, 1893, they were again sprayed, using 4 lbs. of copper 

 sulphate, 3 lbs of lime, and 2-^ oz. of Paris green in 82 gallons of water. 



June 8-12, the spray was repeated, using the same mixture. 



June 29 they were again sprayed, using modified Eau Celeste. (Two 

 lbs. of copper sulphate, 1^ lbs. of carbonate of soda, and 1 qt. of ammonia 

 water in 32 gallons of water. ) 



July 14 to 15 a final spray was given, using 2 lbs. copper sulphate, 1^ 

 lbs. lime, and 2^ oz. Paris green in 32 gallons water. 



This last spray caused considerable loss of the older foliage, leaving that 

 near the extremities of the young shoots in all cases apparently unaffected. 



As the apparent result of the first two sprayings mentioned, there has 

 been an almost total absence of "leaf curl" (Taphrina deformans) which 

 is usually quite prevalent here in early spring and which was present this 

 year in neighboring orchards, causing many of the leaves and fruits to 

 drop. 



Apparently also the fungus which usually, in this climate, attacks the 

 foliage and growing twigs of the serrate varieties of the peach, has been 

 subdued by these applications, since a single serrate variety growing here, 

 which has been annually very severely attacked by this fungus, has this 

 season almost wholly escaped, making sound, healthy growth as in the case 

 of other varieties. 



The only insects which have proved troublesome are the curcn|io, for 

 whose attacks jarring has been the remedy employed, and the borer 

 {Sannina exitiosa) to remove which the trees were "wormed" in September 

 -a process intended to be repeated in April or May next. 



For more convenient reference all abbreviations are inserted at the head 

 of the columns in which they are used. 



In very many cases the origin of a variety is unknown or uncertain, for 

 which reason in most cases the source from which the variety was received 

 is inserted instead of the place of origin. 



The word "cling" is appended to the names of varieties of that class, 

 and in a few cases only the word "free" is appended to the name to avoid 

 uncertainty. In all other cases the word "free" is to be understood, the 

 column usually devoted to this particular being omitted as unnecessary. 



In many cases names are simplified or objectionable portions enclosed 

 in parentheses to indicate probable future elisions in compliance with the 

 rules of modern nomenclature. 



