- 6 - 



and it is thought that next season all nurseries will have enough 

 stoolbeds of virus-free M.9. Therefore, in 1975/1976, the Dutch 

 nurseries are free to do what they want. Most virus-free M,9 root- 

 stocks will be planted and budded in 1976. It is estimated that 

 at least one million trees on virus-free M.9 will be available in 

 1977. 



Table 3. The release of budwood and graftwood of apple with a dif- 

 ferent virus content in the season 1974/1975 in the 

 Netherlands. (Data of the General Inspection Service NAKB ) 



Virus status 



Buds 



Grafts 



Total (I) 



Virus-free 

 Virus-tested 

 Not tested 



Literature Cited 



1. Campbell, A.I. 1974. Which Cox clone is the best? Grower 81 

 (24) :1166-67. 



2. Oosten, H.J. van. 1974. Virus research and clonal selection 

 in fruit trees. Ann. Rept. Res. Sta. Fruit Growing, Wilhelmin - 

 adorp, 1973 :19-20. 



3. Oosten, H.J. van. 1975. Virus research and clonal selection 

 in fruit trees. Ann. Rept. Res. Sta. Fruit Growing, Wilhelmin - 

 adorp, 1974 :17-18 



4. Westwood, M.N., and H.R. Cameron. 1974. Effects of vein yel- 

 lows virus on growth, flowering and yield of Anjou pear. J. 

 Amer. Soc. Hort. Sci. 99: (5) : 425-427 . 



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POMOLOGICAL PARAGRAPH 



Dutch small fruit acreage shows an 851 decline since 1950. Increas- 



ing labor costs 

 steady decline 



to 1973, the ac 



than 2,000 acre 



crease are blac 



about 578 acres 



your-own method 



lands. 



and lack of harvest labor have been responsible for a 

 in small fruit acreage in the Netherlands. From 1950 

 reage decreased from 12,300 acres to a little more 

 s. The only small fruit crops that have shown an in- 

 kberries and blueberries which together total only 

 It was the opinion of the author that the pick- 



of sale warranted serious consideration in the Nether- 



