Symptoms 



Bordeaux mixture (7). Burn affected fruits. 

 The seed from diseased fruits is apt to contain 

 the fungus. 



Beet. 



Foliage. — Small reddish-brown spots, on 

 which heaps of chestnut spores are to be seen 

 with a lens, scattered over the leaf surface. 

 Rust due to Uromyces Betae. Most prevalent 

 when soil is deficient in potash. Rarely worth 

 spraying for. 



Berbbris. 



Foliage. — The yeUow cups of one stage of 

 the rust of wheat, Puccinia graminis, occurs on 

 spots on the under surface of the leaves of some 

 species of Berberis. On the upper surface 

 of the leaf minute yellowish " pycnidia " 

 occur. 



Borecole. See Cabbage. 



Broccoli. See Cabbage. 



Bbussels Sprouts. See Cabbage. 



BuLLACE. See Plum. 



Cabbage. 



Seedlings. — The stem becomes thin and 

 dies at about ground level, and the seedling 

 topples over. More prevalent under glass than 

 in the open. Thin seeding and early trans- 

 planting. Soil sterilisation. Caused by 

 Pythium De Baryanwm. A minute fungus 

 caUed Olpidium Brassicae also attacks young 

 71 



