the manure, increase the drying surface of the manure, improve the 



amount and speed of airflow over the manure, and reduce the amount of 



2 

 fresh manure per m of floor space (Hartman, 1953) - 



One of the benefits of keeping manure dry is that it retains its 

 value as a fertilizer (Hinton, 1977; Loomis et al., 1975). One of the 

 drawbacks of using poultry manure as a fertilizer, however, is that 

 manure can increase soil salinity when it is applied in high levels 

 (Shortali and Liebhardt, 1975). This is not a problem on acid eastern 

 so! 1 s. 



Hammond ( 1 9^+2 ) may have been the first to formulate diets for 

 growing chickens using cow manure as a vitamin supplement. Since then, 

 many types of manures have been tested as feed supplements. Poultry 

 manure, which has an average nitrogen, phosphorus, and potassium 

 analysis of k, 3, and 2%, respectively (Woods, 1975), has been tested 

 in poultry diets (Lee and Blair, 1973; Lee et al., 1976) and advocated 

 for use by some authors (Woods, 1975) - 



For other options in manure management, consult the book on agri- 

 cultural waste treatment by Hobson and Robertson ( 1 977 ) • 

 House fly biocontrol agents 



The predators and parasites of immature house flies are many. 

 Since few were dealt with in this study, only a selected review is 

 deemed necessary. Additional references pertaining to house fly 

 predators and parasites can be Pound in the house fly bibliography of 

 West and Peters (1973). Books by Askew (1971), Clausen (19^0), and 

 Thompson (19^3) are also recommended. 



