CHAPTER III 

 EFFECT OF DIFFERENT ACARICIDES ON CITRUS RUST MITES 



Introduction 



The purpose of this study was to evaluate rust mite control by 

 some newly developed chemicals and to determine their effectiveness 

 by comparison to known standards. 



Materials and Methods 



During the summer of 1975 and 1975, several compounds were evalu- 

 ated for control of the citrus rust mite, P. olei vora, on Valencia 

 orange trees. The compounds were mixed with water according to the 

 manufacturer's directions, and applied to run off. A brief description 

 of each compound is found in Table 21. 



1975 field acaricide spray tests . Acaricidal tests were conducted 

 on Valencia variety of C^. sinensis at Orange Lake, Florida. The 

 following chemicals and concentrations were evaluated: 



PP199 at .005, .01, .02, and .04% 



PP067 at .01, .02, .04% 



Dicofol at .03% (commercial standards) 



Oxamyl at .001% 

 A water control and an unsprayed control were incorporated into this 

 test. 



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