The Locust Borer 



Figure 4 Above, tree trunk split open to show tunnels made by larvae. Natural size. 

 Below, bark removed to show work of larvae; natural size 



moving the food supply the development of eggs would be checked. 

 Consequently the infestation would be reduced .to a marked extent. 

 The fact that the goldenrod is a very good honey plant makes this 

 method somewhat objectionable in localities where bees are kept. 



Whitewash. A coating of whitewash applied to the trunk and 

 main branches of the trees during late summer before oviposition 

 begins will prevent much damage. The insects do not oviposit as 

 readily in the bark coated with whitewash as they do on untreated 

 bark. The application should be well made, that is, all cracks and 

 crevices in the bark should be filled with the mixture. 



Tanglefoot. Bands of tanglefoot from two to, five inches wide 

 were applied to the trunks of trees about five feet above the ground 

 to ascertain if this material might be effective in trapping the beetles. 

 These bands remained in good condition during the entire fall, but 

 not a single beetle was caught. Beetles placed in these bands by the 

 experimenter were able to free themselvs from it. This shows that 

 tanglfoot is ineffective so far as capturing the beetles is concerned. 



