-10- 



Isothan <^15, at l/2 pint in 100 gallons, did not kill the 

 scab spores, and it did not inactivate the scab lesions. V/hen the concen- 

 tration was increased to s/S pint in 100 gallons, the results were no better. 



Micronized sulfur, representing a good grade of dry wettable 

 sulfur, was unsatisfactory. The spores germinated abundantly 5 and 6 days 

 after the application, and continued to do so on successive days thereafter. 

 The results were no better with 8 pounds than with 6 pounds of Micronized 

 sulfur in 100 gallons. The results with Flotation Sulfur Paste, 12 pounds 

 and 16 pounds in 100 gallons, were similar and not satisfactory for burning 

 out. Liquid lime sulfur, 2 gallons in 100 gallons, gave satisfactory results 

 and eventually cleared the foliage of scab very well, although numerous 

 germinating spores have persisted and now scab spots have appeared up to the 

 writing of this ngws article (August 20), 



In contrast to the above results, the Fermate and Puritized 

 sprayed trees have never yielded any germinating scab spores. The clearing 

 of the foliage of the scab fungus is more rapid with Puritized. The effect 

 of the spray is more noticeable than with Fermate. The scab spots on the 

 trees sprayed with Fermate appear fresh and active even long after the ap- 

 plication, nevertheless the spores are ungerminable and dead. There is no 

 burning of leaf tissue from the use of either, such as happens from liquid 

 lime sulfur. The scabby foliage sprayed v/ith puritized offers the most 

 pleasing appearance, considering the manner in which the leaves are cleared 

 of the scab mold and the way in which the normal green color of the foliage 

 under the scab is restored. 



— E. F. Guba 



Delayed preparation and mailing of 

 August Fruit Notes are due to the 

 fact that the editor has been, and 

 will continue to be for the next six 

 weeks, actively engaged at Fort Devens 

 in supervising the POVT o.pple picking 

 project. He hereby acknowledges the 

 dozen or more interesting articles 

 recently received from others. Several 

 will appear in the September issue of 

 Fruit Notes. 



