102 MAINE STATE COLLEGE. 



TABLE IV (Continued.) — Hdbbardston. 



Treatment. 



Nature of fruit. 





Number wormy. 





> 

 < 



1 lb. to 250 gals Picked 



773 

 36 



13 

 28 



5.06 

 4.62 



14.25 



32.52 





1 lb. to 300 gals .... 



Total 



1st tree : 



Picked 



Fallen 



Total 



2nd tree : 



Picked 



Fallen 



TOTAI 



Picked 



Fallen 



809 



6S1 

 33 



41 



11 

 22 



5.06 





714 



836 



83 



33 



75 

 56 



10.04 





919 131 



652 145 



169 1 122 







Total 



821 ' 267 



32.52 



AYhile none of the trees were as severely attacked as is the 

 case some years, there was a marked difference between the 

 sprayed and the unsprayed trees. The unsprayed Greening trees 

 bad an average of about 20 percent, of wormy fruit; while in 

 no case was there more than 12.5 per cent, on the sprayed trees, 

 and in most instances the percentage was much lower. With the 

 Hubhardstons the difference was fully as marked ; the percentage 

 of wormy fruit on the unsprayed trees being 32.5. while the 

 highest percentage from a sprayed tree, the weaker solution being 

 used, was but 14.25 



By observing column five in the table, it will be seen f hat the 

 percentage of wormy fruits is much 'esp when the stronger 

 mixture was used. By the use of the weaker mixture, Dearly 

 one-half, (49.8 per cent.), of the loss was prevented, while by 

 the use of the stronger mixture the amount of wormy fruit was 

 reduced by 04.5 per cent. The figure gives a graphic representa- 

 tion of the relative amouut of wornry fruit under the different 

 treatments ; letting a represent the average amount of wormy 

 fruit on the trees sprayed with the stronger mixture ; b the 

 weaker mixture and c the unsprayed trees. 



In addition to the work above detailed, several Greening trees 

 in another orchard some distance from the first were sprayed with 



