146 



Table 32. Larval population means for all treatments during each 

 sampling period when poultry manure was treated with 

 CGA 72662 and three organophosphorus larvicides. 



Treatments 



TM 

 dimethoate d ichlorvos Ravap 



1.92 1/9. 12m 2 3.84 1/9. 12m 2 

 Time 

 Sampl i ng I nterval 

 Period (days) 12 3 k 



386. 00A 305. 00B 



19.00C 20.00C 



35.25B 269-00C 



527. 25A 33.50C 



1 







355. 25A 



235.00C 



2 



4 



53.00A 



13.00D 



3 



7 



335. 25B 



421. 00A 



4 



11 



465. 50A 



302. 50B 



5 



14 







6 



28 







7 



35 







Note : For each sampling period, treatment means without common 

 letters are significantly different (p < .05) using the method of 

 J. W. Tukey. 



