-5- 



We haven't encountered it yet, but it is conceivable that apples kept in 

 consumer unit polyethylene bags for a month or longer during the first six to 

 eight weeks after harvest might show more scald than apples which were not confined 

 in poly bags. 



Air-Tight Bags? 



Limited tests with air-tight consumer unit polyethylene (150 g) bags at the 

 Cornell pomological laboratory have indicated that apples will not significantly 

 benefit from a sealed bag environment and it is sometimes a dangerous practice. 



Summary 



Summing up our work at Cornell, it may be said that prepackaging apples in 

 consumer unit polyethylene bags will reduce the amount of water lost from the 

 apples and increase the amount of decay of punctured fruit." 



W. J. Lord 



I I I I I I I I I I I I I I I I 



START NOW TO CONTROL FUSICOCCUM PEACH CANKER AND PEACH LEAF CURL 



There are two peach diseases that require grower attention in the fall. One 

 is Fusicoccum peach canker and the other, peach leaf curl. 



Peach canker infections start in buds on the current season's growth in 

 rainy weather in September and new infections continue to occur until cold 

 weather. The cankers resulting from the infections begin to appear in October 

 and continue to appear through winter and spring. Spores produced on them 

 infect leaf bud clusters, leaf blades, and the base of soft tender new shoots 

 in rain periods after bloom in spring. 



Not all orchards have peach canker. Where it is present, a program of 

 pruning and protective spraying is suggested. 



Pruning out of diseased twigs and branches should be done while trees 

 are dormant and also in June. 



Spraying should be started in mid or late September according to Dr. 

 E. F. Cuba, with applications at 10 to 12 day intervals, preferably before 

 rains, and should be continued until nearly all the leaves have fallen from 

 the trees. As with all spraying, thorough coverage is necessary. Satisfac- 

 tory results have been obtained by Dr. Cuba from spraying with a mixture of 

 \ lb. dichlone (Phygon) and 1 lb. of ferbam in 100 gallons of water with 1 

 pint of glyodin added for better wetting. Captan at 2 lbs. and thiram at 2 

 lbs. have also been effective. 



To obtain control of peach canker, the preventive spray program with 

 dichlone- ferbam mixture should be continued in spring. Start with early 

 Delayed Dormant and make applications in Pink, Petalfall, and Shuck fall. 



