205 



Two weeks after the initial treatments were applied, the mite popu- 

 lation means for all treatment groups were significantly lower than the 

 mite population mean of the control group (Table 58, Figure 41). Signi- 

 ficant differences also occurred between the means of treatment groups. 

 The Ravap treatment group mite mean of 3-63 mites per bird was numeri- 

 cally lower than the mite means of the other groups. The next highest 

 group was the 6X malathion group with a count of 20.43 mites per bird. 

 The remaining groups were the carbary 1 -ma lathion (1 X)-carbaryl , malathion 

 (1 X)-malathion (l X)-malathion (1 X) , and carbaryi-carbary 1-carbaryl groups. 

 The mite mean of the control was 110.78 mites per bird. 



Two weeks after the second treatments were applied, the mite means 

 for all treatment groups were still significantly lower than the mite 

 mean of the control group (Table 58, Figure 4l). Significant differences 

 also occurred between means of treatment groups. The Ravap treatment 

 group mite mean of 0.46 mites per bird was numerically lower than the 

 mite means of the other groups. The next highest counts were in the 

 carbaryl-carbaryl -carbaryl group, followed by the two malathion groups 

 and the carbaryl -malathion (1 X) -carbaryl group. The mite mean of the 

 control group was 82 . 94 mites per bird. 



At the time of the last mite count, mite population means of all 

 treatment groups were significantly lower than the mite population mean 

 of the control group (Table 58, Figure 41) and no significant differences 

 occurred between treatment groups. The malathion (iX)-malathion (1 X) - 

 ma lathion (1 X) group mite population mean was reduced to zero. The next 

 highest group was the carbaryl -malathion (l X) -carbary 1 group followed by 

 the Ravap-Ravap-Ravap , carbaryl -carbaryl-carbaryl , and malathion (6X) - 



