No. 4.] SPRAYING OF CROPS FOR PROFIT. 265 



England is the weakening of the vines by the fungous pests ; 

 and vines regularly sprayed to prevent this injury gain in 

 strength from year to year, and large and satisfactory crops 

 are the result. We have to compete with fruit from the 

 large vineyards of more favorable grape-growing sections 

 than New England ; but the native fruit, when well grown 

 and ripened, can be put upon our local market in so much 

 better condition than that coming from a long distance that 

 it is sure to bring a much higher price. Plate III. illus- 

 trates a sprayed and Plate IV. an unsprayed vine. 



The Raspberry and Blackberry. 

 The orange rust and leaf blight, the two most serious 

 obstacles to the growth of these crops, are easily kept un- 

 der control by spraying with the Bordeaux mixture. 



The Currant and Gooseberry. 

 The currant worm is destroyed by the use of hellebore 

 powder applied in water, or in a dust form when the leaves 

 are wet with dew or rain. Attention should be given to 

 the bushes very soon after the leaves open, and spraying 

 be done upon the first appearance of the worms. The leaf 

 blight, a fungus that causes the leaves to fall ofi" in August, 

 may be prevented from doing injury by the use of the Bor- 

 deaux mixture. 



The Strawberry. 



While spraying for the destruction of insects and fungous 

 pests attacking this fruit does not give so marked results as 

 with many other crops, it has been conclusively shown in 

 many experiments that the rust is largely reduced by the 

 use of the Bordeaux mixture ; and the two insects, the 

 black paria and the crown borer, may be largely prevented 

 from doing serious harm if Paris green is used in the 

 mixture. 



The Potato. 



Numerous experiments and general practice go to show 

 that this crop cannot be grown with the best results without 

 the use of insecticides and fungicides. The Colorado beetle 

 and the flea beetle are destroyed by the use of the Bordeaux 

 mixture and Paris green, and at the same time the leaf 



