alter fruit set significantly (Table 1 ). The results from 

 Great Britain were very specific in terms of time of 

 sensitivity to captan, possibly explaining some of the 

 lack of effect that we observed. 



In 1994, we conducted an additional experiment to 

 study the specific timing of captan application. Mature 

 Marshall Mclntosh/M.26 trees were selected and 

 blocked according to blossom density. Within each 

 block, one tree was treated with captan (Captan 50 WP, 

 2 lbs/ 100 gal.) when king blossoms were expanded 

 fully, one was treated one day later, and one was treated 

 two days later. A fourth tree was left untreated. Other 



than these captan treatments at bloom, all trees were 

 managed similarly. After June drop was complete, final 

 fruit set was counted on two limbs per tree. 



The different timings of captan application did not 

 result in any significant reduction in fruit set (Table 1). 

 Therefore, none of our experiments confirmed the 

 results of studies conducted in Great Britain and Vir- 

 ginia. We can only speculate that our growing condi- 

 fions in 1992 and 1994 did not interact with captan in a 

 way that caused reduced fruit set. Qearly, New En- 

 gland apple growers should not be overly concerned 

 that captan will reduce fruit set on Mcintosh. 



•1^ •l^ %1a •^ •J^ 

 ry* •^ •Y* •T* "T* 



Publications Available 



Two publications recently released by Agriculture and Agri-Food Canada should be of interest 

 to many readers of Fruit Notes. One is titled "Techniques for controlled atmosphere storage of fruits 

 and vegetables" (Research Branch Technical Bulletin 1993- 18E), and it is a brief general review of the 

 techniques currently in use for CA storage. The second is tided "Postharvest disorders of apples and 

 pears" (Publication 1737/E), and it is a detailed review and update on postharvest physiological disorders 

 of these fruit, including numerous photographs of the disorders. Both of these publications can be 

 obtained without cost by sending your request to: 



The Librarian 



Agriculture and Agri-Food Canada Research Center 



Kentville, Nova Scotia B4N 1J5 CANADA 



16 



FruH Notes, Fall, 1994 



