Colorado Beetle. 91 



It is probable that they may go on appearing for another two weeks, 

 bnt I think it well to have a watch kept over the plot for at least a 

 month. That a brood may appear over some time we may judge from the 

 fact that eggs and larvse in all stages were found last August at the same 

 time, although it is probable that the first brood would hatch out about 

 the same time. 



RecomrmndMlions. 



1. Constant supervision and hand-picking adults and ova on infested 

 plot in the docks for one month. 



2. Very careful examination of the potato plots along the railway line 

 just outside the dock property. 



3. Clearing off the rough herbage in close proximity to the infested 

 plot. (It would be aS well not to burn this near ; smoke very often makes 

 insects fly when they otherwise would be sedentary.) 



i. An examination of all potato fields and plots within a three-mile 

 radius of the dockyard plot. This had best be made twice ; once as soon 

 as possible, and again about the 21st of June. 



A visit ought to be paid now as well as later, because some of the 

 beetles may have flown away last year and hibernated, and like those kept 

 at Wye, have appeared during the early part of May and commenced to 

 breed. If this has happened the larvae should be quite large. 



5. It would be well to have the leaflet on this pest sent to all potato 

 growers on both sides of the river to distribute to their men. 



COLOEADO BEETLE ENQUIRY. 



(Board of Ageicultuee.) 



Insects sent as Colorado Beetles. 



A number of insects were sent to the Board of Agriculture as 

 Colorado Beetles from different localities ; it is a matter of interest to 

 note the great variety of creatiu-es sent — none being the pest in 

 question. The specimens are as follows : — 



No. 1. 



No. 2. 



No. 3. ) The Cockchafer {Melolontha vulgaris, Fabr.). 



No. 4. 



No. 5. ) 



No. 6. Chrysomela marginalis, Duft. 



No. 7. Bibio hortulanus, Linn, (a fly). 



No. 8. Larva3 of one of the Clirysomelidm (Colorado Beetle family) 

 of the genus Timarcha. 



No, 9. Bmying Beetle {NecroplioriLs sp.). 



No. 10, The Cockchafer {M. vulgaris, Eabr.). 



