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Effect of Mulch on Yield of Northern Spy ^ples The following data showing 

 the effect of a liberal mulch in a Michigan orchard is furnished by E. J. 

 Rasmussen, now of New Hampshire , The year the trees were mulched, each tree 

 received 500 pounds. Wo mulch or fertilizers viere applied later except on the 

 check trees which had the regular fertilizer treatment. It will be noted 

 that the effect of one application of mulch in 1942 began to wear off after 

 about 5 years when compared to unmulched trees. 



Mulched, 1945 



7.5 bu. 

 17.7 bu. 



5.8 bu, 

 31,5 bu, 

 27.1 bu, 



FAmi AIJD HOME VffiEK FRUIT IviEETIKG 

 University of Massachusetts, ijihorst - July 21 



How Many Trees Do You Spray Per Minute ? Knowing the output of our spray pump 

 and. the number "oF trees passed per minute v/e can easily figure the number of 

 gallons applied on each tree. Following are the numbers of trees passed per 

 minute while driving at varying speeds in orchards with trees spaced at different 

 distances: 



Mi le s per Hour Tree Spacings ( feet ) 



1.0 

 1.5 

 2.0 

 3,0 

 4.0 



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Lime Sulfur Tends to Reduce Yields Most apple growers are 

 familiar with v;hat is commonly knovm as lime sulfur burn, both on 

 the skin of the operator and on the leaves of the tree. Leaves 

 treated with this caustic material are smaller. They have 

 scorched margins and are less efficient in the manufacture of 

 starch. That is v/hy the milder forms of sulfur are used so 

 generally today with a resultant increase in yields. Following 

 are some figures from a Virginia orchard where part of the trees 

 were sprayed with lime sulfur over a period of 5 years, and the 

 rest viith flotation sulfur. Four crops were borne during the 

 5 years. The trees sprayed v;ith lime sulfur averaged 4.06 

 bushels per tree while those sprayed with flotation averaged 

 5.85 bushels per year, 



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Ho March Fruit Notes Lest some readers of FRUIT NOTES wonder- if they have been 

 dropped from our mailing list, we offer this explanation. No issue was distribu- 

 ted during the month of March, 



