132 



tested (Figure 41). Although Banex , a non-toxic chemical, displayed 

 the least control of rust mites, there was no significant difference 

 between it and the accepted commercial standard chlorobenzylate. 



Banex , also known as Choken, is characterized by A and P Research, 

 Inc. as not acting as a toxicant but rather as an agent that possibly 

 interferes with feeding. Regardless of how the material works, it is 

 of extreme importance to point out that this non-toxic material gave 

 as good control as did chlorobenzylate which is recommended for use 

 for the citrus industry. 



Chlorobenzylate at .01% was rated as moderately effective in mite 

 control when compared to those chemicals used in the 1976 evaluations 

 (Figure 41 ) . 



PP199 at .01%, .02%, and .03% and oxamyl at .001% were found to 

 be statistically more effective than Banex'^. No difference between 

 these chemicals and the standard was statistically discernable. These 

 chemicals were rated as displaying best control (Figure 41). 

 Comparison of 1975 and 1976 Evaluations 



Treatment data . The 1975 field evaluation trial period coincided 

 exactly with the initial mite build-up and its decline (Figures 25-33). 

 During 1976, the field evaluations were started after the initial mite 

 population build-up had begun. It is believed that the 1976 evaula- 

 tions began two weeks later into the population cycle than 1975 (Fig- 

 ures 35-40). 



The 1975 epizootic-like mite decline during weeks 4 and 5 made 

 treatment by week interactions undiscernable for this period permit- 

 ting Duncan's test only on weeks 2, 3, and 6. 



