FIGURE PAGE 



36. Fluctuation in house fly populations as recorded by two 



blacklight traps at the tilling site 168 



37- Farnam bait field trial treatment means \"}k 



38. Farnam bait field trial treatment means by se^< 176 



39- Probit curve, fiducial limits, and LC 50 for JFU 5819 



dosage-mortal i ty data , 1 36 



kQ. Probit curves for all acaricides tested, plotted on one 



set of axes 197 



k\ . Mite population means from hens treated with malathion, 



carbaryl , and Ravap™ at the tilling site 20A 



k2. Pre- and post-treatment field-estimated mite population 

 means from floor birds treated with two synthetic 

 pyrethroid compounds at Chipley, Fl 211 



^3- Houses 100 and 200 showing locations of strain replications 



and treatment areas 215 



hk. Weekly egg production means by treatment from the caged- 



layer trial at Chipley, Fl 232 



^5. Plot of egg production means vs. precount mite means by 



strain from caged-layer trial at Chipley, Fl 237 



x IV 



