of Agriculture. 



Plate I. 



Examples of Nematode Infestation. 



A , Symptoms of the stem-nematode disease in the wild strawberry ( Fragaria chiloensis). Note 

 the swollen and distorted leaf Wades and petioles. B, A new plant of wild strawberry devel- 

 oping on a runner which is badly swollen, due to nematode infestation. C, A wild strawberry- 

 leaf showing the upper and lower surfaces, with typical swellings caused by the stem nema- 

 tode. D, Red-clover seedlings infested as a result of inoculation with the strawberry strain 

 of Tylenchus dipsaci. 



