April, '10] FELT : THE CODLING MOTH 177 



as checks. Five trees were also selected from each of the different 

 methods of treatment. The fruit from the fifteen trees was examined 

 about every two weeks during the season, beginning with the June 

 drop. A record was made of the wormy apples as to whether the 

 worms entered at the calyx, side or stem of the fruit. While the 

 test was made primarily against the codling moth a record was also 

 kept of the curculio marked apples. 



The percentages marked on the photographs are simply those 

 obtained from the picked fruit as seen in the pictures. "When we take 

 into consideration the dropped apples from the check trees, the per 

 cent of wormy and curculio marked fruit will be increased as it may 

 also be in the sprayed trees. The average per cent of wormy and 

 curculio marked fruit as seen in the pictures is as follows : - 



Check trees : per cent wormy, 36 ; per cent curculio marked, 34. 

 Mist spray : per cent wormy, 3 ; per cent curculio marked, 11. 

 Coarse spray (high pressure): per cent wormy, 2; per cent cur- 

 culio marked, 11. 



Mr. Sanderson : Doctor Felt 's results correspond exactly with 

 what I have secured in New Hampshire. 



I would like to know what results he got from the use of the 

 Friend nozzle. I wish there was some way of using the word "Ver- 

 morel, " as applied to the different forms of nozzles, without using 

 the one name. I think we had better refer it to the Committee on 

 Nomenclature, and get a name for the special kinds. It has been 

 suggested that this form of nozzles be called the "Disc" type, which 

 term seems worthj^ of adoption. 



My experience has been that the Friend is superior to the old noz- 

 zle. As regards the driving spray: I do believe that the driving 

 spray is superior in that you can get the spray into the tree, and 

 get the fruit treated, w^hich you cannot do with a mist spray. 



Mr. Felt : I have the very highest respect for Professor Sander- 

 ■son's opinions, but I must take a diametrically opposite position. I 

 must say, from my observations, that you mil have great difficulty 

 in covering the trees thoroughly \nth a driving spray. 



Mr. Braucher: The first season that I used the Bordeaux nozzle 

 my experience was the same as Doctor Felt's; I was unable to cover 

 the trees thoroughly when using a single nozzle. By using two nozzles 

 the past season with a Y and a 45° crook, having the nozzles set so 

 the two fan-shaped sprays were parallel to each other and to the 

 iorizon and at right angle to the extension rod I was able to do very 

 5 



