NOTES AND ABSTRACTS. 



271 



2 inches long, made up of seven leaflets. From a spectacular point 

 of view it is far more effective than hundreds of subjects considered 

 appropriate for this form of gardening. — H. R. D, 



Rose Chafer {Macrodactylus suhsjyinosus Fab.). By F. H. 

 Chittenden {U.S.A. Dep. Agr., Bur. Entom., Circ. 11, revised July 

 1909 ; 1 fig.). — This circular deals with the immense damage done to 

 crops in various parts of the United States by the rose chafer, which, 

 according to Harris, confined its ravages to the blossoms of the rose 

 when first noticed. In later years it has extended its range of food 

 plants until now it is nearly omnivorous. 



The grape vine and rose especially suffer from its depredations, but 

 it is almost equally destructive to fruit, shade, and forest trees. The 

 beetles consume blossoms, leaves, and fruit, and it is no uncommon 

 sight to see every young apple on a tree completely covered with a 

 sprawling, struggling mass of beetles. 



Almost every method employed against other insects has been tried 

 without avail, and compounds of copper, lime, and kerosene have failed 

 to kill the rose chafer, and a thoroughly successful remedy has yet to be 

 discovered for the extermination of the pest. — V. G. J. 



Rose Slug's. By F. H. Chittenden {U.S.A. Dep. Agr., Bur. 

 Entom., Circ. 105; October 1908; 5 figs.). — The circular deals with 

 the life history, distribution, and extermination of the three species of 

 saw flies, the larvse of which do considerable damage to the foliage of 

 roses in the gardens of the United States. 



Figures 1 and 2 represent the American rose slug (Endelomyia 

 rosae). The larvae feed chiefly at night, and always on the upper 

 surface of the leaves. When full grown they descend into the earth 

 and construct a cell or cocoon, where they remain till the following 

 spring. 



Figures 3 and 4 show the second species, the bristly rose-slug 

 {Gladius pectinicornis Fourer), which is of European origin and is 

 pretty generally distributed in many parts of the United States, Eng- 

 land, and Scotland. The larva in its earliest stage skeletonizes the 

 leaves, but with increased growth it eats large, irregular holes, 

 frequently leaving nothing but the stronger ribs. It forms a cocoon 

 upon the plants on the surface of the ground. 



Figure 5 shows the coiled rose slug {Emphytus cinctus L.), also 

 a European introduction. The larva differs from the other two in 

 devouring the entire substance of the leaf. Upon reaching maturity it 

 bores into the pith of the stems of dead rose bushes or other available 

 plants, where the pupal stage is passed. — V. G. J. 



Roses, Notes on the Newer. By H. E. Molyneux {Garden, 

 Sept. 11, 1909, p. 444 et seq.). — The writer includes in his subject 

 roses introduced from' 1906 to 1909. Good roses, with few exceptions, 

 get into general cultivation in about three years. Sept. 18, p. 458, 

 the H.P.s are dealt with; six are considered, and three — W. H. 



