Table 1 . Suggested use of ethephon on 'Mcintosh' apple trees. 



Purpose 



Sales prior to 



normal harvest 



Compound, timing and rate 



Alar-85* - mid-July - 1 lb/100 gals. 



pi us 

 ethephon - 2 to 3 weeks prior to normal 

 harvest - 1 pint/lGO gals. 



pi us 

 2,4,5-TP - same timing as ethephon spray 

 - 20 ppm 



Fruits to be held 

 at 32 F in air for 

 1 month or less 



Alar-85* - mid-July - 1 lb/100 gals. 



pi us 

 ethephon - 2 weeks prior to normal har- 

 vest - 1/2 to 2/3 pt/100 gals. 



pi us 

 NAA or 2,4,5-TP - same timing as ethephon 

 spray - 20 ppm 



Fruits to be held 

 at 32 F in air as 

 late as Jan, 1 



Alar-85* - mid-July - 1-1/2 lb/100 gals. 



pi us 

 ethephon - same timing as ethephon spray ■ 

 1/4 pt/100 gals. 



pi us 

 NAA or 2,4,5-TP - same timing as ethephon 

 spray - 20 ppm 



*************** 



SUMMER CARE OF FRUIT TREES 



William J. Lord 

 Department of Plant and Soil 



Sci ences 



Research findings and grower experience both show that tree 

 training along with other cultural procedures is essential to the 

 success of medium or high density planting. For the last sever- 

 al years, there has been greater emphasis on year-around care 

 of compact trees. Below are suggestions of Dr. Robert Carlson, 

 Michigan State University, that appeared in the July, 1972, issue 

 of Compact Fruit Tree , on the summer care of compact trees. 



Once over, once-a-year is a thing of the past in successful 



fruit culture. The modern orchard made up of compact trees in a 



medium or high density arrangement requires season to season atten^ 

 tion rather than year to year observation. 



