-7- 



ing the 43 years and one weakened and died shortly before the row was removed. 

 Omitting these three trees the average annual yield was 30 bushels per tree, or 

 810 bushels per acre. 



Yields of four additional varieties for a period of 14 years, 1923- 

 1936 inclusive, are available. The average annual yields of all five varieties 

 for this period were R. I. Greening, 16 bushels; YIealthy, 13 bushels; Ben Davis, 

 15 bushels; Baldwin, 10 bushels; and Mcintosh, 22 bushels. This shows one 

 reason why Mcintosh is preferred by our growers; it yields more, largely be- 

 cause it is an annual bearer. Wealthy and Ben Davis could well be planted more 

 than 27 trees per acre so they should be regarded as better producers than the 

 above figures indicate, ^ y. o^aw 



UNSCRAMBLING VARIETY PUZZLES IH TIIE NURSERY 



The 23rd annual examination of nurseries for trueness-to-name began on 

 July 12, and it will require about a month for three men to complete the vrork. 

 It is some job to I'^arn and remember the varietal characteristics of the many 

 varieties of apples, pears, plums, cherries, and peaches that will be examined. 

 We propagate many varieties in our own nursery where they can be studied at 

 various stages of development. There are now in our nursery varieties of var- . 

 ious tree fruits as follows: apples, 61; pears, 47; plums, 59; cherries, 36; 

 peaches, 53, ornamental crab apples, 31. Total 287 varieties. They include 

 many varieties that are new or little known and which may appear in nurseries 

 either as new introductions or substituted for other varieties. The numbers 

 given above do not include "strains" or bud sports of apple varieties such as 

 Starking, Red Spy, and about 20 possible sports of Mcintosh. Many varieties 

 are represented by both one-year and two-year trees. V.'e have 25 clonal stocks 

 of apples, several of which are used for the apple varieties. There is a 

 total of nearly 1000 distinct lots of trees in our nursery. Is it any wonder 

 that nurserymen sometimes make mistakes? 



A bulletin describing and illustrating nearly 100 varieties of apples 

 is in press; one showing 42 varieties of cherries has just been published, and 

 others dealing with pears and plums are in preparation. 



--J. K. Shaw 



MAGNESIUM DEFICIENCY 



The season is at hand when magnesium deficiency may show up in apple 

 orchards. The typical symptoms are relatively easy to see although other causes 

 may manifest symptoms which are quite similar. So one should not bo too hasty 

 in assuming that a shortage of magnesium is necessarily the cause of a suspicious 

 orchard trouble that merely "looks something like" the symptoms described for 

 magnesium deficiency. 



In late July or early August, apparently healthy trees will suddenly 

 show leaf scorch in the form of irregular brown blotches. These blotched sec- 

 tions along the leaf edge or more likely on the blade itself are dead areas 

 and naturally interfere with normal leaf functions. The older leaves n^mr the 



