94 



BITTER PIT INVESTIGATION. 



The rainfall is given at Melbourne for the spring, summer, autumn, and winter months for 

 the past three seasons, and for each month of the past year and the present up to and including 

 May:— ■ 8 





ivt jy— iu. 

 Inches. 



1910-11. 

 Inches. 





1911-12. 

 Inches. 



Spring (Sept., Oct., Nov.) 



.. 4-07 



9-33 





6- 



98 



Summer (Dec, Jan., Feb.) . . 



.. 5-34 



4-13 





10' 



28 



Autumn (March, April, May) 



.. 6-25 



5-59 





11' 



97 



Winter (June, July, Aug.) 



.. 8-06 



4-69 





7- 



35 





1911. 



1 IlCllGS. 



1912. 

 Inches. 







A a Tin A TV 

 o ciix uai y 



1 -9Q 



. . JL AO 



0 



■47 







JJ GUI Uai y 



. . 0 OO 



0 



94 







iviarcn . . 



I ou 



0 



74 







Autumn- April 



..1-12 



2 



33 







iMay 



.. 3-35 



1 



35 







i' June 



.. 3-72 











Winter -j July 



.. 2-26 











v August . . 



.. 1-37 











rSeptember 

 Spring \ October 



.. 3-06 











.. 2-54 











I November 



.. 1-38 











December 



.. 3-67 











Total .. .. 36-61 



A row of London Pippins or Five Crowns, about ten years old, on Northern Spy stocks was 

 used for the pruning experiments, and the results are given in the following table : — 



Table XVII. — Results of different Methods of Pruning on London Pippin or Five 



Crown Apple Trees. 



No. of Tree. 



Pruning. 



Yield. 



No. of Apples Crinkled. 



Remarks. 







lbs. 







i 



Severe 



29 





Generally small apples, and tree affected with 











tree-killing fungus 



2 



) y 



93 



8 (1 with Bitter Pit) 



3 





86 







5 



Light 



127 



6 





8 



if 



91 



2 





9 





98 



10 





10 



Leader 



100 



2 





12 





195 



21 



Altogether a larger and more vigorous tree 

 than the others 



13 



None 



137 



4 





14 





152 



1 





An occasional apple was affected with Bitter Pit, and sometimes it was combined with 

 crinkle ; but there was practically only the one disease on all the trees. Although No. 1 tree had 

 the lightest crop of all, the apples were very small. The amount of crinkle altogether is so very 



