" PEACH SCAB AND ITS CONTROL. 5 



Table I. — Peaches and nectarines — trees, production, and valite in the United States. 





1910 



1909 



1899 



Geographic division. 



Trees of 



bearing 



age. 



Trees not 



of bearing 



age. 



Produc- 

 tion. 



Value. 



Produc- 

 tion. 



United States 



Number. 

 94, 506, 657 



Number. 

 42,266,243 



Bushels. 

 35,470,276 



Dollars. 

 28, 781, 078 



Bushels. 

 15, 432, 603 







Groups of States: 



723,810 

 6,056,690 

 11,035,119 

 13,265,526 

 20,583,445 

 10, 312, 768 

 22,284,966 

 i; 605, 285 

 8,639,048 



572,237 

 5,759,925 

 6,972,375 

 2,582,028 

 6, 137, 901 

 3,865,232 

 8, 734, 552 

 1,696,111 

 5,945,882 



406,903 

 3,201,493 

 5, 120, 841 

 1,643,257 

 5,571,628 

 5,775,799 

 3, 279, 545 



940, 168 

 9,530,642 



632,411 

 4,018,034 

 5, 172, 957 

 1,250,944 

 4, 888, 459 

 4,098,776 

 2,761,044 

 1,071,446 

 4,887,007 



104, 737 



Middle Atlantic 



1,231,242 



Eastern North Central 



716, 670 



Western North Central 



212,932 





1,412,471 



Eastern South Central 



549 226 





2,192,353 



267, 365 





Pacific 



8, 745, 607 







Though the nectarine is represented in these figures, it is relatively 

 so unimportant that for purposes of rough estimation it may be left 

 out of consideration. According to these estimates, in 1910 there were 

 in the United States 94,506,657 bearing peach and nectarine trees, 

 which, during the preceding year, yielded a crop valued at $28,781,078. 

 The greater portion of the trees in the South Atlantic, eastern South 

 Central, western South Central, eastern North Central, and Middle 

 Atlantic States, estimated at 70,272,988, are in sections subject to 

 serious losses from scab. Those of the New England and western 

 North Central States, numbering 13,989,336, with the exception of 

 those in the more southern areas, as Missouri (6,588,034) and Kansas 

 (4,394,894), are generally distinctly less seriously affected, while the 

 10,244,333 trees of the Mountain and Pacific States, only 10.8 per 

 cent of the total number, may be classified as free from economic 

 injury by scab. 



Inasmuch as any accurate computation of the losses occasioned 

 yearly by the disease would of necessity be based upon such unde- 

 terminable factors as actual losses and expenditures for preven- 

 tive treatments, a concrete estimate is scarcely profitable. The 

 experience of the years immediately preceding the development of 

 control measures, however, emphasizes the potential damage of the 

 disease. During this period, owing to the combined ravages of 

 brown-rot and scab, commercial peach growing in the southern por- 

 tions of the United States suffered a severe check, while even in the 

 eastern and central sections plantings of certain varieties had to be 

 discontinued or confined to the higher altitudes in order to escape 

 scab. With the improved standards of excellence which successful 

 summer spraying has instituted and with the cumulative develop- 

 ment of the disease in unsprayed orchards, it is evident that if no 

 scab control were available the disease would be a serious menace to 

 successful commercial peach culture in many sections of the southern, 

 eastern, and central United States. 



