Department of Agriculture 47 



development, fewer applications of poison will be needed. 

 Much will depend upon the surrounding conditions. After 

 the stainer-host-plant relationships are better understood, 

 control will no doubt be simpler. 



The Stainer and Citrus 



Instances have been reported in which the stainer migrated 

 from cotton to citrus, and inflicted considerable damage to 

 ripening fruit. These instances are rare, however, and we 

 feel that they are due to some abnormal conditions which 

 need not arise in the case of Sea Island cotton. The stainer 

 appears to migrate from Sea Island cotton only under excep- 

 tional conditions, such as where excessive rotting of the bolls, 

 or a general break down of the plant, occurs. If the stainer 

 population is kept down, no migration of consequence will 

 take place even under these conditions. 



Cost of Sodium Arsenate 



Drug stores carry only the pure grade of sodium arsen- 

 ate, and usually charge about ten cents an ounce for this 

 product. If any appreciable quantity is to be used, however, 

 a commercial grade of sodium arsenate can be ordered. 



Caution 



Sodium arsenate, like all other arsenicals, is a deadly poi- 

 son, and must be used accordingly. Only such quantity of 

 mixture that is needed for immediate use should be made. 

 Especial care should be exercised to prevent children from 

 gaining access to the sweetened mixture. In case of arsenic 

 poisoning, however, give lime water, raw eggs, emetics, and 

 send for a physician. 



Growing Sea Island Cotton in New Territory 



As suggested previously. Sea Island cotton probably can 

 be grown successfully in many areas where it has never been 

 cultivated. The matter should be studied carefully, however, 

 before large sums are invested in its culture in a new local- 

 ity. Soil, climate, labor and marketing conditions must be 

 favorable before it can become a profitable crop. 



Little is known of the possibilities of Sea Island cotton 

 even in Florida outside the original Sea Island Belt. In 

 the Melbourne area, for instance, where a number of experi- 

 mental plantings were made in 1938, it was found that on 



