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cussion of them. The diseases enumerated, are briefly as 

 follows : 



1. Yellow leap blight or mosaic disease. A physio- 

 logical trouble due to poor nutrition. It can often be 

 prevented by applications of kainite. 



2. Frenching. Caused by a fungus (Fusisporium vasin- 

 fectiim). 



3. Damping off or sore-shin. Caused by the mycelium 

 of an unknown sterile fungus. This affects the young seed- 

 lings. 



4. Anthracnose. Caused by CoUelotrichum Gossypii, 

 usually affecting the bolls. 



5. Shedding of bolls. A serious trouble, usually en- 

 tirely physiological and not due to either insects or fungi. 



6. Angular spot of cotton. An obscure disease of the 

 leaves, probably caused hy bacteria. 



7. Areolate mildew of cotton. Caused by a fungus 

 (Ramiihria areolata) which produces a white mildew on 

 the leaves. 



8. Cotton leaf blight. Caused by the early or Cer- 

 cospora stage of a fungus (Sphaerella gossypina). 



9. EooT GALL OF COTTON. Caused by the nematode {Het- 

 erodera radicicola). The same nematode affects many other 

 garden and field crops and orchard trees. 



Unfortunately no remedies can be suggested at present 

 for most of these diseases. They are doubtless largely in- 

 duced or at least aggravated by the common practice of 

 cropping the land year after year in cotton. When cotton 

 shall be made to take its place in a carefully considered ro- 

 tation of crops great benefit will follow in its comparative 

 freedom from disease as well as in the preservation of soil 

 fertility and the avoidance of over production. 



POTATOES. 



Potato Blight. — The much dreaded Northern potato rot 

 or blight {Phytophthora ivfestans) probably does not occur 

 in this State. It certainly is not a common disease here. 



