io8 Roses for Amateurs. 



that they will drop to the ground on to the adhesive, whence 

 they may be collected and destroyed. 



Occasionally, too, we have found some pretty greenish 

 metallic Weevils belonging to the genus Phyllobius upon 

 Rose-bushes; but we have not been able to determine 

 whether they are hurtful or not. Still, knowing the damage 

 they do to fruit-trees by gnawing the foliage and the buds, 

 we have destroyed them as " undesirables." P. viridicollis 

 is the species we have oftenest seen. This has green scales 

 on the thorax and a black shiny body. The "beak" of 

 these Weevils is short and thick, not prolonged as in some 

 species. They may often be shaken from the trees in the 

 morning. 



Vegetable. 



Bla.ck Spot (Actinonema rosce). 



In this we have a very characteristic fungus disease, 

 and one that seems considerably on the increase. This is 

 probably due to the fact that very feeble efforts are made 

 to combat it. The popular name above adopted gives a 

 clue to the chief feature of the disease a blotching of the 

 foliage. At first the spots are very irregular, but later they 

 assume a more definite form and increase considerably in 

 size. In bad attacks, when no effort is made to stay them, 

 the leaves yellow prematurely and fall. Where only a few 

 of the leaves are involved these may be removed and burnt. 

 Where, however, a tree was attacked by the fungus the 

 previous year, much the better plan is to take preventive 

 measures by spraying in spring with a weak solution of 

 Bordeaux Mixture. The disease occurs under glass as well 

 as in the open. 



Mildew (Sphacrotheca pannosa). 



As long as we have any trustworthy records of the Rose, 

 this disease has apparently been one of the banes of the 



