G8 WALL'S MANUAL 



turn dark colored, arc mildewed and totally valueless. 

 There arc some planters who attribute this disease 

 solely to atmospheric changes, and not to the soil. 

 The author, from long study and reflection, is of the 

 opinion that both theories are right; the soil stands 

 the rust, and the atmosphere continues it. Mr. David 

 Dixon, of Georgia, applies with his fertilizers one 

 hundred pounds of salt to the acre, and affirms that 

 he is now never troubled w T ith the rust. 



s o R E - s ii i N . 



The sore-shin is sometimes occasioned by a careless 

 stroke of the hoe, scraping the outer bark from the 

 stem, while the plant is yet growing and tender. 

 Although the vigor of the plant may afterwards pro- 

 duce new bark from the the sides of the wound, and 

 the injury heal up, leaving only a scar, yet the stem 

 eventually becomes so weak, as frequently to break 

 off at or above the place first wounded. The prevent- 

 ive of this kind of sore-shin is careful hoeino-. There 



O 



is another kind of sore-shin occasioned, as some assert, 

 by planting too early. The cold, cutting winds blight 

 the young plant w T here it comes in contact with the 

 ground. The plant-louse, which prevail most in such 

 seasons, doubtless contribute to the injury. 



THE ROT. 



Mr. Troup, in the American Farmer, describes its 

 appearance with great accuracy. lie says : '' The 

 first indication is seen in a small circular spot outside 

 of the boll, exhibiting a darker green than the other 

 parts ; as if a globule of water had been dropped upon 

 it, and been absorbed. Many of these arc frequently 

 seen at the same time on the same boll. They spread 



