sizes range from barely visible to half the size of a dime, often 

 on the same fruit. Initially, the spots appear as small, round 

 areas, then increase in diameter and eventually join to form large, 

 irregular, discolored patches. Upon aging, the spots become brown. 



The cause of 

 by late harvest, 

 the storage period 

 storing the apples 



Jonathan spot is unknown, but it is accentuated 

 Reasonable control can be obtained by limiting 

 air at 32 F to no more than 60 days, or by 

 °'^ CA storage at 3% O2 and 1% Z^^. 



^ n 

 i n 



32 



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SOIL TREATMENTS FOR NEMATODE CONTROL ON STRAWBERRIES 



Richard A. Rohde 

 Department of Plant Pathology 



There are probably "^^T)/ few commercial strawberry growers in 

 the state, who are without some experience with soil fumigation. 

 This experience may range from personal use, to observation of a 

 neighbor's fields, to demonstrations by regional specialists or 

 chemical companies. Reactions vary from enthusiastic acceptance 

 to lukewarm skepticism and many feel that it is probably a good 

 idea and "maybe I'll try it next year." If next year is to be 

 that year, now is the time to plan fall soil fumigation in prepa- 

 ration for new beds to be set next spring 



