CHOKECIIERR I BS - ELD,IINATE THB J HOl'7 



The X-disease or yellow-red virosis, a virus disease of peaches, is apparently 

 becoming a real threat to the peach industry in some sections of the state. The 

 alternate host of this disease is the chokecherry which grows wild in abimdance 

 over most of the state. Since this diseaSe travels rapidly from chokecherry to 

 peach but very slov;ly from peach to peach, it is necessary to remove all choke- 

 cherries to a distance of 400 to 500 feet from the peach orchard to be reasonably 

 sure of freedom from this disease. Removal '-of chokecherries is the only Icnovm 

 control at present. 



Some gro\f;ers who have peach orchards next to wooded areas heavily infested 

 with chokecherries find it practically impossible to eliminate them from such 

 areas, Tnis emphasizes the necessity for great care in selecting a peach site. 

 Setting peaches next to an area infested with chokecherries is inviting trouble. 

 If it is possible the chokecherries should be eliminated before the peaches are 

 planted. If they can't be eliminated another site had better be selected. Vvhere 

 it is at all possible, chokecherries should be eliminated promptly around orchards 

 alread2/ set. 



The chokecherry is a persistent tree. If it is cut off, many sprouts will 

 develop from the stump. If it is dug out, any root pieces left v;ill send up 

 sprouts. The only sure way of killing chokecherries is by the use of an herbicide. 

 The most. -effective and safest of these is Aramate, It is used at the rate of 1 lb, 

 per gallon of water. Treatment is most effective if the spray is applied v/hen 

 the plants are grov/ing rapidly but any time from late June to mid-August appears 

 satisfactory. The f olj age of the chokecherries should be thoroughly wet with the 

 spray and roovfing postponed until the following season, Ammate is less effective in 

 shaded areas so that in such places one or two retreatments may be required. 



Since Anmate is not a selective spray, it must be used around desirable plants 

 vrith care. Peach trees are quite sensitive to it so that it should not be used _iji 

 the orchard; only around the orchard,  



Ammate is quite corrosive on metals. It should not be left in spray equipment 

 longer than necessary and the equipment needs to be v/ashed thoroughly iiTimediately 

 after use. Adding some spray lime to the wash v;atcr helps. It is also desirable 

 to wash the -'outside -of .^ ttie. spx-ay^er tQ..d*emoy#- ax»y., •W^tari^i.^^ich- hc^ slp^pe^j^cyer, 



— John S, Bailey 



ELUEBSF JIIE S FOR liOLIE AND LOC K ER FH EEZING 



Both cultivated and vjild loiv bush and high bush blueberries have been found 

 to be quite satisfactory when frozen. Under some conditions trouble has been 

 experienced y/ith a toughening of the skins during freezing and storage. The exact 

 cause of this condition is not knovm. However, it has been found that in many 

 cases blanching prevents the development of tough skins. For blanching the blue- 

 berries should be handled in one or two pound amounts. They may' be blanched in 

 either live steam or hot v^ater for from 30 seconds to one minute, depending upon 

 the tenderness of the fruit. Firm blueberries should be blanched for one minute. 

 In blanching the fruit may be placed in a sieve and dipped into boiling water or 

 exposed to live steam. During blanching the fruit is softened and some color and 

 juice will escape. Immediately after the blanching period the blueberries should 

 be cooled by holding them in cold v/ater for several minutes. 



