April, '13] 



HUNGERFORD: TWO-SPRAY CALENDAR 



171 



The following charts show graphically what has been above pre- 

 sented. 



% 



100 



60 

 70 

 60 

 30 

 40 

 30 

 ^0 

 10 



.1 



44. 4 



^ .76 ^ri2? 1.^7 i2? L03 l£4 



Gdno Jon. Wsp. Rr*« 



Jba. B./. Wa<> G.C. B.P-Ul.P Gdao 



UNSPRAYEP 



Times 



SPRAY EP 3 

 Times 



SHOWING CODLING MOTH INFESTATION OF SPRAYED AND UNSPRAYED TREES 



Chart No. 6 



In Chart No. 6 the columns represent the codling moth infection. 

 The high ones on the left show the infection in the unsprayed orchard, 

 the ones on the right, in the sprayed blocks. As might be expected 

 there is no marked difference between the two and three spray blocks. 



