THE HOP FLEA-BEETLE. 



89 



This method captures a satisfactory percentage of the beetles and 

 should be comparatively inexpensive. But unfortunately the re- 

 peated operations ^vhicll are necessary bring the cost to a high ligure. 

 It cost INIr. Hulbert last year approximately $1.25 per acre for each 

 operation. He went over his vines six times, and some parts of the 

 yard eight or ten times. He expected to go over it at least twice 

 more, so that the total cost would be from $10 to $15 per acre. 



In figure 19 a portion of a hop field is shown which illustrates the 

 tarred " boards " in place for use. The fit a-beetles are dusted off 

 of the vines upon these tarred receptacles with wisps of ha}', as 





I"i(J. 111. — I'ortion (if Imp licld wiili t.iiTid honrils in place. I'Mea-liociIcs aro diisled with 

 wisps of liay from tlie vines onto tarred boards. (Original.) 



described above. All of the vines were tanglefooted, but the flea- 

 beetles went up the i:)oles and crossed over on the wires overhead until 

 the tanglefoot was applied. Plate YII illustrates the method of 

 capturing tlie hop flea-beetle on tarred horse sledges, also by shaking 

 the vines. Millions were captured in this way. 



CLEAX C'ULTIV.VTIOX. 



Frequent stirring of the soil and other cultural operations seem, 

 as yet, to be of no appreciable help, according to ]V[r. Quaylo. and the 

 kind of soil also seems to have little or nothing to do with the abun- 



06— VI 



