98 



the additional protection from possibly severe injury by the 

 second brood. The treatment three weeks after the blos- 

 soms fall may be advisable, especially if the first application 

 is not thorough for some reason or other, though as stated a 

 moment ago, we much prefer to emphasize the importance 

 of thorough work during this first period. 



It may be contended by some that the results from a 

 single spraying, given above, are better than the average 

 fruit grower can obtain by himself. The best answer we 

 can make to this is that during the past two seasons we have, 

 without previous warning, gone into the orchards where 

 experimental work was conducted in earlier years, and found 

 that the owners had obtained practically the same returns 

 witliout the benefit of any supervision or suggestions from 

 the entomologist, aside from that gained while the experi- 

 mental work was in progress. Last summer one of our fruit 

 growers became somewhat worried about the possibility ot 

 injury by a second brood and, to satisfy himself in regard to 

 the matter, sprayed two rows in an orchard in early August, 

 all having been thoroughly treated during the first period 

 as described above. An examination of the yield at picking 

 time showed that the trees sprayed but once bore about 95 

 per cent, of worm free apples, while the second application 

 in August resulted in a gain of approximately 2 per cent of 

 sound friut. Practically this made little difference, since 

 the infested apples produced by the trees sprayed but once, 

 were mostly on the ground and therefore very few, in any 

 event, could be run in as first-class fruit. 



Spraying for the codling moth, so far as we are con- 

 cerned, has not resulted in making an enthusiastic supportei 

 of any one system. It has, hoAvever, shown us the possibili- 

 ties, and if conditions are such that one spraying will not 

 do the work, by all means giA^e more. Before concluding 

 that the latter is necessary, be sure you know what thoroug^i 

 work means, because it is much more economical to spray a 

 tree satisfactorily in one treatment than to make two trips — 

 the second, if unnecessary, simply means wasted effort. We 

 are well satisfied that under Hudson valley conditions, and 

 they are not very different from those of Massachusetts, 

 orchards in what we term a good horticultural condition 

 will give surprisingly satisfactory returns with one thorough 



