VEGETABLE GROWING IN NEW SOUTH WALES. 



known. It is r yt hereditary, for the disease does not necessarily appear 

 if seed affected with brown fleck is planted. Many conditions relating to the 

 nature and composition of the soil, amount of moisture, and weather, have 

 been investigated as contributing causes, but no definite conclusions have 

 been arrived at. 



Brown Fleck. 



Brown Rot of Potato, Tomato, &e. 



The cause of this disease is a bacterium which attacks potato, tomato 

 tobacco, and egg plants. On cutting across an infected branch of the plant 

 brown discolorations are seen, and a dirty white slimy mass may ooze out from 

 the cut surface. As the infection spreads, the stem turns prematurely 

 yellow, shrivels, and wilts, or it may wilt suddenly without loss of green, 

 colour, and the whole plant may soon collapse. The accompanying brown 

 stain can often be seen through the younger and more translucent stems as 

 long brown streaks, although the surfaces of these parts still appear to be 

 normal. The roots, as well as the stems, are subject to attack. 



