-6- 



2, However, 2,U,5-TA may delay drop for a longer period than 2,14., ^-TP before 

 "nmning-out." 2,U,5-TP applied on 8/29 held only as well as 2,ii,5-TA 

 applied 8/29 until 9/l8. 



3. In this test there was no significant difference in drop control between 

 an early( 8/29) and late(9/8) application of 2,it,5-TA by 9/2ii. However, as 

 previously discovered, a late application of 2,ii,5"TP (9/8) is superior to 

 an early application (8/29) of the same material. 



U. It appears that 2,l4,5-TA does not hasten ripening or red color development 

 as much as 2,l4,5-TP. Fruits from trees receiving 2,1|,5-TP on 8/29 were thi 

 ripest and the reddest on 9/2U. 2,l4,5-TA applied on 9/8 did not appear to 

 hasten ripening of these apples any more than NAA may. 



From this test it appears that 2,)4j5-1^ may have a place. It perhaps is not 

 quite as good as properly applied 2,U,5-TP for drop control over a two. week period 

 but it is undoubtedly much more effective than I^IAA in this regard. Also, 2,ii,5-TA 

 does not appear to hasten raatirrity and red color development as much as 2,1|,5-TP, 



— F. W, Southwick 



J-'I.S.A. PROGRAI.: FOR EUROPEAM HORTICULTURISTS 



This past summer it was my privilege to visit many of the important fruit 

 areas of the VlTest. The visit was in conjunction with a special short course in 

 Fruit Production, sponsored by liutual Security Agency with the cooperation of 

 the Land-Grant cclleger: of the states visited. This school' hdd representatives 

 from eight European co-.i.ntries and its purpose was to familiarize the Europeans 

 with our nethods of growing and handling the various fruit crops and with the 

 various state and federal agencies that serve the American fruit grovrer, I served 

 as the team leader and it was n^r responsibility to direct the travel and make 

 reservations for the team members, 



of orientation 



Following a three-week period/and study in Massachusetts, the group left by 

 plane for the West, The group spent one week each in Utah, Oregon and Washington 

 and tv;o weeks in California, In each state the group studied methods of soil 

 management, pruning, pest control, harvesting, storage and n;;irketing for the 

 different fruits and also the particular problems of the industry and the methods 

 of attacking these problems, Partic\ilar emphasis was placed on the role of the 

 Extension Service as a means of carrying the results of the research workers to the 

 farmers , ' 



Most of the program was conducted in the form of tours. During the five vraeks 

 the group visited many orchards, experimental farms, fertilizer and insecticide 

 manufacturing plants, farm equipment plants, packing houses,, storrges ard processing 

 plants. Through the tours it was possible to study the methods used and the problem. 

 at first hand. 



Some of the problems that confront the fruit growers in the areas that we 

 visited are: The high cost and shortage of labor. The increasing costs of trans- 

 portation. The virus disease problem in stone fruits and sir^all fruits. Close 

 planting resulting in crowded conditions, especially in older orchards. The problem 

 of mite control. Nutrient deficiency problems in certain soils. 



Most of the problems have been overcome, at least in part, and those that have 

 yet to be solved are receiving the attention of public and private research 

 organizations . 



