- 6 



The apple maggot population peaked between the first and 

 second week of July in eastern Massachusetts while in wes- 

 tern Massachusetts, it peaked nearly one month later, be- 

 tween the first and second week of August. Orchardists 

 should be aware of such differences for properly timing 

 their spray programs. 



Both types of traps should be replaced every 3 

 their effectiveness lessens. 



weeks or 



6. To make valid comparisons of apple maggot population trends 

 between different regions, standardized traps are required. 



Future Work . As a result of these findings, a more intensive study 



will be conducted 



setts to those of 



red sphere traps. 



ef f ici ency 



to compare 



next summer comparing 

 western Massachusetts 

 We also will use the 

 of all 3 traps. Field cages 

 the yellow trap's ability to 



Acknowl edgments 



trends of eastern Massachu- 

 by again using the yellow and 

 vial bait trap to compare 

 will be utilized in order 

 capture the first emergents. 



The authors thank Roger Adams and Dr. Gary Jensen of the Ento- 

 mology Department for their assistance in 'locating sampling areas 

 and in conducting the sampling of the orchards. Appreciation is 

 also extended to Joseph Costante, Regional Fruit Specialist, for 

 the use of his data obtained at Northboro. 



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



IS CALCIUM DEFICIENCY REDUCING 

 THE STORAGE LIFE OF McINTOSH APPLES? 



W.J. Bramlage, Mack Drake, and John H. Baker 

 Department of Plant and Soil Sciences 



the H 

 cal ci 

 t e r i 

 and N 

 found 

 1 evel 

 was a 

 the u 

 were 

 i r a t 

 norma 



In 19 



r t i c 

 urn 1 e 

 ratio 

 ov.-D 



that 

 with 



1 so r 

 nexpe 

 f i rme 

 i ng m 

 1 dev 



72, a 

 ul tur 

 vel s 

 n of 

 ec . 1 

 bitt 

 in th 

 educe 

 cted 

 r tha 

 ore r 

 el opm 



nd aga 

 al Res 

 in Bal 

 the fr 

 973). 

 er pit 

 e f r u i 

 d at t 

 f i n d i n 

 n at h 

 a p i d 1 y 

 ent of 



in in 1 

 earch C 

 dwin ap 

 u i t in 



We con 

 , cork, 

 t incre 

 he high 

 g that 

 igher 1 

 . This 



the ca 



973, we 

 enter, 

 pies we 

 storage 

 t i n u e d 



and de 

 ased, a 

 est cal 

 at yery 

 evel s , 



f i rmne 

 1 ci um-d 



reported results of tests at 

 Belchertown, showing that low 

 re increasing the rates of de- 



(Fruit Notes. Nov. -Dec, 1972 



these tests last year and again 

 cay were reduced as calcium 

 nd as we reported in 1973, scald 

 cium level. We also confirmed 

 low calcium levels the apples 

 despite being larger and deter- 

 ss apparently reflects an ab- 

 eficient apples. 



