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Landscape Gardening 



will drive the beetles away, but they soon return and the 

 remedy must be repeated each day until they are done 

 working. If this powder has been kept over one season or a 

 considerable time in an open package, it loses its strength. 

 It should always be kept in a sealed can or glass-stoppered 

 bottle, and a fresh supply be obtained each season. Where 

 rose-bushes are but few, these insects can be kept from 



Fig. 185. — Rose-bug or -chafer. 

 (Riley: "Insect Life," Vol. II., p. 295, Fig. 61.) 



doing serious injury by hand-picking; the easiest way to 

 gather them being to take a broad, shallow tin basin, put in 

 a Httle water with a tablespoonful of kerosene on top, 

 hold the basin under the part of the bush examined, and 

 touching the insects they will fall into the pan and be 

 destroyed. 



Rose-slug {Monostegia rosea), Fig. i86. — The rose-slug 

 is the larvae of one of the saw-flies. The perfect insect 

 comes out of the ground the last of May or early in June. 



