326 YARD AND GARDEN 



form of light brown jjatelies. Destroy affected 

 plants and apply Bordeaux liberally. 



Leaf-blight — This attacks and destroys only 

 portions of leaves, whereas the leaf-rust pro- 

 duces masses of spores on all the surface of 

 the leaves. Sometimes called "leaf -spot." 

 Attacks roses, maples, cherries, sycamores, etc. 

 Same remedy provided for leaf-rust. 



Leaf-rust — Asters are mainly the victims of 

 this disease. The leaves are discolored by 

 orange-colored spots, usually underneath, and 

 the foliage shrivels. Spray with Bordeaux or 

 ammoniacal carbonate of copper. 



Maple Leaf-spot — Silver, red and striped 

 maples are victims of this disease. The leaves 

 become spotted and ugly and the vigor of the 

 tree is impaired. Burn fallen leaves and when 

 the foliage is one-half expanded in spring begin 

 to spray with Bordeaux, and repeat at fre- 

 quent intervals until the disease is checked. 



Mildeiv — White patches appearing on leaves 

 or other parts. The most destructive are 

 downy mildew of the lilac, rose mildew and 

 powdery mildew of the hawthorn, cherry and 

 plum. Spray with Bordeaux or ammoniacal 

 carbonate of copper. Dust on sulphur. 



Pansy Rust — Brown or dark spots appear 



