v FIG 143 



the leaf the centre of the spot is light brown and the 

 margin dark or purplish brown. On the lower side it 

 is more of a uniform brown colour. The spots may be 

 round or irregular in shape. It is of very slight im- 

 portance, and when occurring alone would not necessitate 

 treatment. When occurring in connection with other 

 parasitic fungi, it would undoubtedly be reduced by 

 the use of the Bordeaux mixture with profit. 



Dieback of Twigs. This disease has been reported 

 from the southern part of the United States. It is of 



FIG. 61. Soft rot of the fig, Rhizopus nigricans. (Photo by C. W. Edgerton.) 



very little importance and seems to be associated with 

 other fungus pests. 



Nematodes. These little pests which are trouble- 

 some on so many plants, attack the fig, and are the cause 

 of considerable loss in the sandy soils (see page 71). 



Root Diseases. Dematophora necatrix, Hartig, 

 attacks the roots of the fig in the southern United 

 States, causing a loss of foliage, and finally kills the 

 trees. The diseased trees should be removed and burned. 



Rosellinia sp. has been reported as attacking the 

 roots of Ficus dubia and other plants in Singapore, 

 India. 



