264 BOARD OF AGRICULTURE. [Pub. Doc. 



the leaves to curl up during the summer, may be destroyed 

 by the use of kerosene emulsion or kerosene and water, 

 which must be applied with as much force as is possible, 

 that it may penetrate under the curled leaves. 



The Cherry. 

 The cherry aphis, the minute black insect which causes 

 the leaves to curl and stops growth, can be kept from doing 

 serious injury by the use of the kerosene emulsion or kero- 

 sene and water, or by cutting oif a few leaves on the ends 

 of the growing branches. The rotting of the fruit just as it 

 begins to ripen may be prevented by spraying after every 

 rain for a week or two about the time the fruit is ripening 

 with the copper sulphate solution, four ounces to fifty gal- 

 lons. The cost of this work at first would seem to be more 

 than an ordinary crop would be worth ; but the liquid is 

 inexpensive, costing only from one to two cents per barrel 

 besides the labor of application, and with proper appliances 

 and economy of labor the spraying can be done for a very 

 small sum per tree for the short time when it is necessary 

 to spray. Mr. Geo. S. Powell of Ghent, N. Y., writes that 

 he saved a large crop of cherries during the summer of 1898, 

 a season of unusual rainfalls, by the above treatment. Paris 

 green cannot be safely used on the cherry foliage, but arse- 

 nate of lead should be used for the plum curculio and cherry 

 masffot. 



The Quince. 



The leaf blight and rust on the branches and fruit can be 

 prevented by the use of the Bordeaux mixture. This should 

 not be applied, however, after the fruit is more than one- 

 half grown. 



The Grape. 



Most of the insects attacking the grape, except the phyl- 

 loxera, wliich seldom injures the American grape, can be 

 destroyed by the use of Paris green, and the black rot, the 

 downy and powdery mildew and the anthracnose are all 

 prevented from doing harm by the use of the Bordeaux 

 mixture and the copper sulphate solution. The former 

 should never be used after the berries are one-half grown. 

 One of the greatest difficulties in growing the grape in New 



