68 AGRICULTURE OF MAINE. 



largest per cent of wormy fruit so that it brought the average 

 of that block down about one per cent below the rest. The 

 three unsprayed trees in the midst of the orchard thoroughly 

 sprayed, showed 30 per cent of wormy fruit, as against less 

 than three on the sprayed trees. Where the coarse spray was 

 used, particularly on the lower limbs, even the Baldwins were 

 badly rusted from the bordeaux. The results in the Hart or- 

 chard were almost an exact parallel of these just stated. In 

 both cases, wherever there was a worm-hole in the side, exam- 

 ination was made to find whether the worm came from the 

 first brood working from the center out, or was the work of 

 a later brood entering from the outside, and showed that only 

 in a few cases did the insect enter after the first spraying. 

 The summary of the above would plainly indicate that so long 

 as the trees are thoroughly covered, at this critical time, with 

 an adhesive poison, like arsenate of lead, one thorough spray- 

 ing is sufficient to make the fruit practically worm-free; that 

 the coarse spray is of no advantage and much more expensive 

 because wasteful of material; that the high pressure is desir- 

 able because the work can be more rapidly done, but by no 

 means vital for good results; that the bordeaux mixture, al- 

 though controlling the scab, reduced the market value of the 

 fruit. In my own orchard the work was all done with a hand 

 pump but power size; in Mr. Hart's the power came from a 

 gasolene engine. 



This experiment was repeated by Dr. Felt in orchards of 

 Mr. Hart and of a neighbor of mine the past season (my own 

 Baldwin orchard having so small a crop that the test would 

 have been unsatisfactory) and his results were practically the 

 same as in 1909. The results obtained by the speaker this past 

 season— although no accurate account was kept — were as satis- 

 factory as those of a year ago, but instead of the bordeaux 

 we used commercial lime and sulphur, one to 30, with the three 

 pounds arsenate of lead, and we had neither apple scab nor 

 rust, nor was there the slightest injury to the foliage at any 

 time. The Ben Davis packed this year were the only ones that 

 I ever barreled of which I was proud, for hitherto, however 

 free they might have been from worm or scab, or however 

 large, their beauty — for that and their productiveness is all they 

 have to commend them — was always marred by Bordeaux rust. 



