202 Maine Agricultural Experiment Station. 1918. 



Shad bush, wild rose, cultivated rose, red currant, velvet- 

 leaf blueberry ( !). 



Natural Enemies. 



Fungous diseases. This species is susceptible to the same 

 fungous diseases as the dogwood flea-beetle (see page 173 J. 



Insect enemies. The writer has not yet taken any preda- 

 ceous insects preying upon this species, nor bred any parasites 

 from any of the stages. 



Control. 



The writer has not had occasion to make any experiments 

 in the control of this species, but there seems no reason to 

 doubt that it can be controlled by spraying with arsenate of lead 

 at the ordinary strength (6 pounds, paste form, to 100 gallons 

 of water) wherever it is practicable to apply this remedy. The 

 first application should be made in early June for the larvae, 

 and if necessary, a second between the 10th and 15th of July 

 for the adults. 



It is only on the extensive blueberry barrens of the state 

 that this species appears in sufficient numbers to cause appreci- 

 able damage, and here the very nature of the land and its re- 

 moteness from the towns, makes spraying and similar methods 

 of control practically out of the question. 



Without doubt the practice of burning the barrens periodi- 

 cally keeps this as well as other insects (notably the blueberry 

 maggot) in check, as it seems perfectly certain that the eggs, 

 whether deposited on the ground as the writer suggested or on 

 the bushes, would be killed by the fire. If it were noted some 

 summer that the beetles were especially abundant on any given 

 area of the barrens, it would probably be well to burn over that 

 area the following spring for the sake of destroying the eggs, 

 even if that particular section would not normally be burned 

 over in the regular rotation. 



