165 



Table 39- Mortality of immature house flies in the manure of laying 



hens collected 5 days after treatment of drinking water 



with CGA 72662 at 10 and 20 ppm was terminated. 



20 ppm 10 ppm Control 





4/15 





1/15 





2/15 





2/15 





0/15 



Total Mortal i ty 



9/75 



Mean Mortal i ty 



1 .80 



% Mortal i ty 



12.00 



Corrected % Mortality 



8.33 



3/15 



2/15 



0/15 



1/15 



1/15 



7/75 



1 .40 



9-33 



5.55 



0/15 



2/15 



1/15 



0/15 



0/15 



3/75 



0.60 



4.00 



Corrected using Abbott's formula: 

 treatment mortality - % check mortality .. QQ 

 100 - % check mortality 



