REPORT OF STATE BOARD OF HORTICULTURE. 127 



where the neighboring fruitgrowers do not follow the same 

 methods, and where these have not been practiced for several 

 j^ears together, or long enough for the cumulative effects to 

 become apparent. It must also be remembered that it is 

 only the worms of the first brood that are killed by the spray- 

 ing, however effectually done, while from the individuals 

 escaping this attack come the moths that are the parents of 

 the worms that spoil the apples at maturity. 



"Moreover, spraying alone, though successful within its 

 own limits, cannot insure the fullest product of perfect apples 

 without the concurrent practice of other methods looking to 

 the final reduction of the numbers of the pest. The most 

 important of these associated methods is the banding of the 

 trees and the destruction of the attracted worms every ten 

 days, from the fall of the first wormy apple till the fruit is 

 all in the bin. The second is the immediate destruction of 

 all fallen wormy fruit ; and the third is the destruction of as 

 many as possible of the worms wintering over under bark 

 -scales, in old birds' nests, in cracks in apple bins or barrels, 

 or elsewhere in the fruit room. These associated practices 

 are not to be expected to show their full results in the season 

 in which the work is done, though the immediate value of 

 the first is considerable as a means of reducing the number 

 of worms of the second or later broods of the same season: 



"It is also possible that some of the reported failures are 

 referable to the use of adulterated or low-grade poison. In 

 several states the experiment stations find greatly inferior 

 samples of paris green on the market ; and, while tests made 

 at the Kansas Experiment Station a few years ago showed a 

 fairly uniform high-grade in samples analyzed, it is quite pos- 

 sible that those at jDresent in our market may be found de- 

 fective, as has been reported from neighboring states. 



"It is the purpose of the Kansas station to repeat this year 

 its former careful tests in spraying, if the apple crop gives 

 opportunity, and we hope to be able to correct, by fresh evi- 

 dence, the idea hastily expressed in some quarters, that spray- 

 ing against the codling moth is time and money wasted." 



