161 



Resu 1 ts. Both levels of CGA 72662 significantly increased house 

 fly mortality in the first trial (Table 36). The mortalities of the 

 5.0-and 1.5-ppm treatments were 87-56 and 80.89% respectively, and 

 corrected mortalities were 84.85 and 76.72% respectively. 



The results of the second trial are shown in Table 37- Manure from 

 both CGA 72662 treatments produced house fly mortalities significantly 

 greater than the control mortality. Treatment levels of 20.0 and 10.0 ppm 

 produced mortalities of 100.00 and 92.00% respectively, and corrected 

 mortalities of 100.00 and 91.11% respectively. 



Mortalities produced by manure from treated hens 3 days post- 

 treatment were still significantly greater than mortality rates in 

 control groups (Table 38). Manure from hens formerly receiving CGA 

 72662 at levels of 20.0 and 10.0 ppm produced mortalities of 99-33 and 

 80.00% respectively. Corrected mortalities were 98.97 and 69-39% 

 respectively. 



Results of samples bioassayed 5 days post-treatment are shown in 

 Table 39- There were no significant differences in mortality due to 

 treatment and, after correction, mortalities produced by manure from 

 both former treatment groups were less than 10%. 

 Blackl ight Electrocutor Grid Traps for Adult Fly Surveys 



Fly catches from experimental blackl ight electrocutor grid traps 

 (Danalco ) were processed for 6 months. Species of flies observed 

 includes M. domestica, H. illucens, S. caleitrans , E. ivvitans, and 

 Ophyra sp. 



Resul ts. The monthly catches of the above species of flies in the 

 two traps are shown in Table kO. In nearly all cases, trap A caught 

 greater numbers of flies than trap B. Except for April and September, 



