- 2 - 



ter of the berry and softening of the fruit is minor. However, as 

 the maggot grows it feeds throughout the entire berry under the 

 skin, turning the contents into juice and seeds. A little pressure 

 on the berry at this stage and the maggot will pop right out of 

 the skin along with a gob of purple juice. 



What can you do about it? One of the old admonitions was to 

 pick on a regular schedule and to pick all ripe fruit when you 

 picked. But now with netting to protect from bird damage, you can 

 let them stay on for real ripening and sizing. Pickers may not be 

 too careful to pick clean even under supervision and "pick your- 

 own" pickers certainly will not pick the bushes clean. Clean reg- 

 ular picking then is next to impossible, and even if it were, re- 

 member that those hold-over flies will be here next year and the 

 year after even though you may have been especially careful this 

 year . 



trol 

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 the 

 vore 

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 ual 

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 as c 

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Timely 

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and mo 

 picking 

 d i n s e c 

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than c 

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give a 



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season . 

 t i c i d e s 

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t i n s 

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e con 



ever 



of 



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sprays or 

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they are 

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 1 pound a 

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 than malat 



of maggo 

 10 days d 



dust 

 ef ore 

 11 be 

 rbary 



non- 

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 ctual 

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 apane 



hi on 

 t. S 

 u r i n g 



s have g 



maggots 



necessa 



1 ( S e V i n 



hazardou 



Up to 3 



m a 1 a t h i 



per acre 



at bette 



se beetl 



for cont 



tart whe 



the pic 



1 ven 

 are 



m 



s an 

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 on a 

 are 

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pro 



i n 

 pr 

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rec 

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sea 



ven con- 

 the ber- 

 otect for 

 he fa- 

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 dust or 

 ommended 

 ggot con- 

 1 so a 

 t and i t 

 rri es 

 son . 



*Trade name 



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



SCORCHING OF PEAR TREE FOLIAGE 

 William J. Lord and Edward Vlach 



1 



Last year scorch of pear tree foliage was prevalent in many 

 Massachusetts orchards during the late summer. Frequently, the 

 disorder was present on spur and terminals of several or more 

 branches throughout the trees, the leaves being partially or com- 

 pletely brown or black. The cause of the problem was not deter- 

 mined and individuals differed in their diagnosis of the disorder 

 Generally, it was called heat scorch, mite damage, or magnesium 

 def i ciency . 



We obtained leaf samples from some of these orchards for mag- 

 nesium analysis. Magnesium levels varied from 0.25-0.40%, which 

 is the same range of concentration found in "normal" apple leaves 



