334 



THE FRUIT PLANTATION 



tawba, Delaware and Brighton are among the best red 

 varieties, although Agawam and Salem are much used. 

 Winchell (Green Mountain) is the best early white variety, 

 and in most sections Niagara, a late white sort, does well. 

 Moore Diamond is a white grape of better quality than 

 Niagara. 



THE DISEASES OF THE GRAPE. Grape -vines are subject 

 to the attack of downy mildew in cold, wet seasons, of 

 powdery mildew when it is hot 

 and dry, as well as anthracnose 

 and black -rot. All of these are 

 most troublesome upon vines that 

 have been weakened from over- 

 bearing, but there is a great dif- 

 erence in the ability of the vines 

 of different varieties to resist 

 their attacks. Where any of 

 these diseases are troublesome, 

 the prunings and the fallen leaves 

 and fruit should be destroyed, 

 and the vines thoroughly sprayed 

 with fungicides. The first ap- 

 plication should be made in the 

 spring before growth starts, and 

 the others at intervals or two or 

 three weeks during the season, 

 the number and frequency of the 

 applications depending upon the 

 prevalence of the disease.* 



223. The operation 

 completed 



* A nurseryman sent me the object shown in Fig. 220, saying that he 

 took it from a grape-vine near which grew a Kieffer pear; and judg- 

 ing from this perilous proximity of the two plants and the very sus- 

 picious shape of the excrescence, he was bound to conclude that he 

 had a veritable hybrid between a grape and a pear! Even at the risk 

 of seeming to be unappreciative of discoveries in pomology, I was 

 obliged to report that the entomologist declared the object to be only 

 a gall and a not uncommon one produced by an insect. L H. B. 



