Symptoms 



over leaf and bearing threads of greyish fungus 

 on lower surface. Leaf withers and drops, and 

 whole plant dies. Most frequent under glass. 

 Destroy all fallen foliage (2) and spray at first 

 onset of disease with Bordeaux mixture (7). 

 Rot due to Peronospora sparsa. 



Salsipy. 



Foliage. — ^White spots scattered over whole 

 of leaf surface, due to Gystopus Tragopogonis. 

 Destroy affected plants and spray remainder 

 with Bordeaux mixture or Uver of sulphur (7). 



Saxifrage. 



Foliage. — Chestnut - brown spots scattered 

 over leaf-surface, the leaf becoming yeUow or 

 brown eventually. Attacking Saxifraga longi- 

 folia and other allied species. Rust due to 

 Puccinia. Dip foliage in a rose-red solution of 

 potassium permanganate or spray with it (7). 



SCIIiLA. 



Foliage. — Scattered brown spots. Rust due 

 to Uromyces Scillarum. Remove foMage and 

 spray healthy plants with Bordeaux mixture. 



Flower. — Smut due to Ustilago Vaillantii. 

 See Chionodoxa. 

 Seakale. 



Boot. — Black specks in section of root, 

 followed by rot due to a bacterial attack. 



Swellings on root, similar to those produced 

 by Plasmodiophora Brassicae on cabbage 

 97 H 



