5^ 



STATE POMOLOGICAL SOCIETV 



the voracious "yellow-neck." The fall web worm was here in 

 full force, not confining itself to leaves, but making meals off 

 the fruit itself. 



In striking contrast to these plots was the appearance of all 

 the sprayed trees. Not even the first sprayed row next the 

 check plots had a sign of web worms or other leaf-eating insect. 

 The entire effectiveness of lead arsenate with the lime-sulphur 

 solutions was evidently well demonstrated in this year's results. 

 What insect injured fruit was found on the sprayed plots was 

 almost entirely the work of the curculio. Since this is not a 

 leaf or fruit devouring insect, and arsenicals are acknowledged 

 to be of practically no use in combating it, the performance of 

 lead arsenate for this reason may be estimated .at very close to 

 one hundred per cent. 



The following table gives a comparison of results on the basis 

 of fruit. Under scabby fruit was classed every apple that had 

 the faintest trace of scab, even as small as a pin head. Of all 

 the scabbed fruit considerably less than 50 per cent would be 

 classed as badly scabbed. This should be borne in mind in ex- 

 amining: the table. 



Row. 



J^ o 





^TJ 



a p; 



a) o 



P-& 



1-i Check 



4-5 Niagara 



6-7 Bowker 



8-9 Sterling 



10-11 Grasselli 



12-13 Blancliard 



14-15 "Sulfocide" 



16-17 Self-boiled 



18-19 Home boiled . . . . 

 20-21 Bordeaux 4-4-50 

 22-23 Bordeaux 3-3-50. 

 24-25 Check 



3,102 

 7,736 

 5,040 

 7,765 

 9,563 

 7,699 

 3,660 

 3,181 

 6,551 

 7,185 

 5,215 

 6,092 



58.3 

 92.7 

 93.3 

 89.9 

 88.5 

 91.0 

 94.4 

 84.5 

 85.2 

 83.2 

 85.9 

 59.2 



41.6 



7.2 



6.6 



10.0 



11.4 



8.9 



5.5 



15.4 



14.7 



16.7 



14.0 



40.7 



1.9 

 2.2 

 3.5 

 1.3 

 1.8 

 1.6 

 44.3 

 2.1 

 1.3 

 6.7 

 5.7 

 2.4 



13.7 

 0.6 

 1.6 

 0.8 

 0.6 

 1.0 

 0.1 

 1.0 

 1.2 

 1.5 

 1.9 

 7.3 



