EXPERIMENT STATION REPORTS. 81 



A large uumber of oxperiments in spraying for the leaf curl of the 

 peach were tried in 181)!), but as the disease was not very tro*ublesome 

 the results were not conclusive. Accordingly, the experiments were re- 

 peated in 1900, and the results fully substantiate the claims made in 

 previous years. 



Th(^ disease was quite troublesome in the vicinity of South Haven, 

 and when the trees were not treated, those of varieties subject to attack 

 lost nearly all of their leaves and much of their fruit. Profiting by the 

 observations made in 1898 and previous years, nearly all of the trees 

 were sprayed with copper sulphate solution (one pound in twenty -five 

 gallons of water) during the first week in April, and these trees showed 

 only here and there a curled leaf, the location of which indicated that 

 th(^ buds from wiiich they came were not reached by the solution. A 

 number of trees of the same varieties were not sprayed until tlip last" 

 week in April, and, although none of them were seriously injured, those 

 that were of varieties subject to attack lost a good many leaves, while 

 a single tree that was not sprayed at all dropped practically all of its 

 foliage and fruit. The south row of trees in the southwest block gave 

 an excellent illustration of the benefits of spraying. They are quite 

 close to a hedge and it was difficult to reach them with the spraying 

 material, especially as a strong breeze from the south was blowing at 

 the time. As a result the south side of the trees w^as imperfectly 

 sprayed and the foliage was much injured by leaf-curl, while upon the 

 norlii side of the same trees little or no indication of the presence of the 

 disease could be detected. 



WORK AT THE UPPER PENINSULA STATION. 



In order to test the adaptability of that portion of the State to the 

 growing of the different kinds of large and small fruits, arrangements 

 were made to test some of the most promising varieties at the Chatham 

 sub-station. A list of varieties thought to be desirable for that section 

 was prepared and submitted to Prof. Green of Minnesota, Prof. Goff of 

 Wisconsin, Prof. Waugh of Vermont, Prof. Munson of Maine, Prof. 

 Sears of Nova Scotia, and Prof. Craig of Iowa, but formerly of Ottawa, 

 Canada, for criticism and suggestions. The lists secured in this way 

 showed a remarkable similarity, and an endeavor was made to obtain as 

 mn?iy as possible of the varieties. The trees were shipped to Chatham 

 the last week in April, but were ten days in reaching there and arrived 

 in poor condition. The tract selected for the orchard is a* sandy loam 

 and has a slight slope to the south, but at its north edge the laud dro])S; 

 ott" abruptly for fifty feet. Owing to delay in clearing the laud it could 

 not be got ready for the trees before the first of June and they were 

 planted out in nursery rows near the small fruits, which were planted on 

 the other side of the ravine. The weather has been quite favorable and 

 the loss lias been smaller than was expected. 



As the best results with small fruits in that section are likely lo l»e 

 secured from late varieties, and because the location is more favorable 

 for holding the snow and a late start in the spring, the site chosen 

 for them is on a north slope, where the soil is a light clay loam. The 

 plantation includes about ten varieties each of strawberries, gooseber- 

 ries, raspberries and currants; while the other orchard trees include 

 about fifty varieties of api)les, twenty each of ])lums and cherries, and 

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