228 THE CONNECTICUT POMOLOGICAL SOCIETY. 



I was spraying a young orchard I think I should buy the paste 

 plain and use it all up that year, but I should have some of the 

 dry on hand so that if I found some of the trees needed spray- 

 ing for some trouble I should have some of the dry to apply. 



Now the question has come up sometimes whether we shall 

 apply this in the form of mist spray or the driving spray. This 

 is chiefly due to the fact that in some of the dry, arid regions 

 of the country, like Colorado, they have used the driving spray 

 with great success. In those regions the codling m.oth is more 

 serious than here. It is more serious in Oregon and out in 

 the western regions than it has been here. Out there they have 

 three broods a year, but here in the East we are able to con- 

 trol it with the mist spray. When we had our meeting of en- 

 tomologists. Dr. Ball from Utah gave a paper in which he criti- 

 cised very severely Sanderson and some of the other eastern 

 experimenters, and recommended his driving spray. It looked 

 as though there might be quite a scrap over tlie matter, but 

 Professor Quaintance got up and explained the whole difficulty, 

 I think. I think his explanation is correct. In dry, arid re- 

 gions the filaments of the stamens shrink up so that by the use 

 of the driving spray it throws the poison between them. In 

 the East where we have m.uch more moisture, and usually a 

 moist atmosphere, the filaments of the stamens are close to- 

 gether so that if you use the driving .spray it is practically im- 

 possible to get into the lower calyx. 



The claim is made that about the only advantage of the 

 driving spray is that it may enable you to reach some distant 

 portions on the tree which you cannot very well reach with the 

 mist spray, but I think, in Connecticut, there is no trouble irt 

 controlling our insect pests with the mist spray. 



President Rogers : Do I understand by that. Doctor, 

 that you want to get your spraying up over the top, so that it 

 will drop down through the foliage ? 



Dr. Brixton : If you are going to use the driving spray 

 you do. With the mist spray that is not necessary, because ev- 



