48 ROSES 



the rate of one pound to two hundred gallons 

 will kill the beetle, but it also injures the 

 foliage. The application of arsenate of lead, 

 five pounds to fifty gallons of water, is recom- 

 mended. 



Rose siugs are usually found on the under 

 side of the leaves and may be detected 

 by the skeletonised appearance of the leaf. 

 These small, green, slug-like worms are the 

 larvae of a small black saw-fly, which may 

 be seen busily at work in early June thrusting 

 its egg into the leaves. A second brood of 

 the slugs works in August. They are oftenest 

 found on plants grown in frequented places, 

 such as a porch, where the birds will not 

 remove them. A decoction made of two 

 tablespoonsful of powdered white hellebore 

 to four gallons of boiling water, applied when 

 cool with a whisk-broom, so that the under 

 surface is thoroughly wetted, proves most 

 effective. One thorough application will 

 usually suffice, but if the slug has appeared 

 in given places during previous years, an- 

 ticipate his coming and apply the hellebore 

 solution before the expected arrival, or, since 

 it is a chewing insect, a Paris green spray can 

 be used. 



