- 8 



Our nutritional work with Mcintosh trees has shown that fruits 

 of high color are produced by trees with medium levels of nitrogen 

 and high levels of potassium. 



Before fruit color is blamed on nutrition, the grower should 

 first determine if insufficient pruning and tree crowding are af- 

 fecting color. The size, color and quality of fruit are affected 

 considerably by pruning. The number and location of small, poorly 

 colored apples show v/hich branches or parts of branches need atten- 

 tion during the pruning season. 



The time and effort spent trying to pick those apples on the 

 high branches of tall trees should be a forceful reminder that 

 something should be done. 



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POMOLOGICAL PARAGRAPHS 



Don ' t Was te Money : Laboratory tests show that about six ounces of 

 pesticide remain in a five gallon can after a good effort has been 

 made to empty the can. Up to one quart may remain in a fifty gal- 

 lon drum. Rinse the containers two or three times, emptying the 

 rinse water into the sprayer. If a chemical costs twenty dollars 

 per gallon, six ounces cost almost one dollar. - (From Delaware 

 "Pesticide Briefs" #3) 



The Appi e Maggot : According to Dr. Merrill L, Cleveland, Assis- 

 tant Chief of USDA's Fruit Insects Branch at Beltsville, Maryland, 

 apple maggots have the potential to cause a 100 percent loss of 

 the apple crop; however, the utilization of insecticides holds the 

 loss to less than 1 per cent. 



According to the USDA, apple maggots are a problem mostly in 

 the New England states. New York, and the Great Lakes states. They 

 also infest apples to a lesser extent as far south as Georgia and 

 westward to the Dakotas, Nebraska, Kansas and Oklahoma. 



Ideally, for satisfactory maggot control, all the hosts (neg- 

 lected or wild apple trees and native hawthorne bushes) should be 

 removed from the area. Apple maggot management problems decrease 

 with the enlargement of such sterile areas. Orchardists should 

 not only attempt to eradicate all alternate hosts and abandoned 

 apple trees but, at the same time, use proper control methods to 

 combat the maggots in their own orchards. - G.L. Jensen, Extension 

 Entomol ogy . 



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