-2- 



D. Use of a material which shorter.ti the ripening period means that loss 

 of fruit size may be expected. Fruits picked a week or tv/o weeks earlier than frui 

 cf the same variety on unsprayed trees are naturally going to lose an opport\mity 

 +.0 ^ain additional size. Therefore, it may not be desirable to spray trees with 

 :rait he low good commercial size. 



— F« W. Southwick 



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Travelogues Two members of the Pomology Department, privileged 

 to make extended trips, vrill report on their observations in 

 early issues of FRUIT NOTES. J. F, Anderson journeyed to the 

 Pacific Coast this summer with a group of foreign horticulturists 

 on a tour sponsored by MSA- and 0. C. Roberts, -on sabbattic leave, 

 is starting on a trip soon. Miat they see along fruit lines will 

 be of interest to readers of FRUIT NOTES. 



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THE X-DISEASE OF PEACH 



The X-disease of peach has become extremely serious in the State. If fruit 

 growers are to continue growing peaches, something must be done now to control this 

 disease. Prompt , action is needed . The chokecherry is the most '^^rtant source of 

 infection. This is the time of year when diseased chokecherry leaves are red and 

 yellow and easy to spot. Peaches are also shewing X-disease symptoms; small 

 yellowish or brownish spots which drop out to give a lacy look to leaves; curling, 

 twisting, and dropping of the older leaves until only a tuft is left at the end of 

 the shoot. And don't forget that sour cherries can also be infected with X-disease 



If you find peach trees infected with X-disease look for chokecherries around 

 the orchard. If there is no X-disease in yoiir peaches, you are lucky but don't 

 push your luck any farther. Look for chokecherries. 



If you find chokecherries within 500 feet of your orchard, get busy at once. 

 Get out the sprayer and go after them with a vreed killer. Either Ammate or one of 

 the brush killers containing a mixture of 2,ii-D and 2,U,5-T may be used, Tlie choke 

 cherry is one of those plants -v^ich sprouts freely from the roots. Control by 

 cutting is impossible; by spraying with herbicides is difficult. Don't be surprise 

 or discouraged if you don't "get" all the chokecherries the first time. Keep after 

 them. It's chokecherries or peaches. 



You'll have another chance to "sock" ihe chokecherries next -viinter. The ester 

 form of 2,U-D + 2,ii,5-T in oil may be used for basal stem treatment at that time, 

 Chokecherries can be identified in winter by bud and stem characters. Hov/ever, if 

 it's a wild cherry and you're not sure wiiich, spray it. 



For more detailed information about X-disease and the identification and 

 elimination of chokecherries, write the editor of FRUIT NOTES and ask for copies of 

 "Tne X-disease of Peach," Identification of Chokecherries," and "Getting Rid of 

 Chokecherries," 



Allow no chokecherries within ^00 feet of the peach orchajrd. If you're plant- 

 ing a new orchard, get rid of chokecherries first. If your orchard is already 

 planted, get after those chokecherries now, 



— John S. Bailey 



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