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JOURNAL OF ECONOMIC ENTOMOLOGY 



[Vol. 8 



Mr. T. J. Headlee: We have used tanglefoot for two seasons and 

 while there was no injury the first season, during the second season 

 the bark has died beneath the tanglefoot and the trees have perished. 

 Our applications were made on a very small surface of the tree. 



Mr. a. L. Quaintance: I want to congratulate both Mr. Scott 

 and Mr. Blakeslee for this discovery — independent discovery, as I 

 happen to know. It appears to be a true case of parallel development. 

 I am inclined to believe that the development of this tree protector 

 marks the finish of a first-class insect pest which, up until now, has 

 never been satisfactorily controlled. Of the many species of per- 

 nicious insects with which the orchardist has to contend, none have 

 been more troublesome for a longer time than the peach borer. It 

 is noted that Mr. Scott has applied for a patent for this protector. 

 Should this be granted to him, the bureau will naturally discontinue 

 further work along this line. It may contribute to its more speedy 

 adoption by peach growers that it should be pushed by private inter- 

 ests, and I feel perfectly sure that no claims will be made by Mr. Scott 

 as to its merits which, in his judgment, are not fully warranted. I 

 certainly hope that it will be used by peach growers everywhere who 

 are troubled with the peach borer. 



Mr. W. E. Rumsey: In our experiments at the West Virginia 

 Agricultural Experiment Station against the peach tree borer we have 

 been trying some penetrating substances which were sprayed on the 

 base of the trees to determine if it is practical to destroy the young 

 borers in this way. While the work has not been under way for a 

 sufficient length of time to obtain definite results some interesting 

 observations have been made. Two of the materials used for the 

 purpose mentioned were avenarius carbolineum emulsion and Orchard 

 Brand" miscible oil (1-9). To apply the materials the soil was re- 

 moved from the base of the tree, as is done in ''worming," and the 

 trunk sprayed from six or eight inches above the general surface of the 

 ground to the bottom of the cavity made by the removal of the soil. 

 After spraying the dirt was replaced. The materials were applied in 

 October and the trees examined the following June. The check trees 

 showed an average of about five borers to a tree ; with the miscible oil 

 treated trees the average was one borer per tree; and where carbolin- 

 eum emulsion was used we found an average of less than one borer per 

 tree. 



When applying the carbolineum emulsion night came on before the 

 work was completed and when we returned the next morning three 

 dead borers were found on the bark of the last tree treated the previous 

 evening. One had worked its way completely out of its burrow and 

 the other two were half way out. This indicates that the emulsion 



