71 



Table 9 . Quadratic Equation Variables for Citrus Rust Mite Grazing 

 Test . These parameters were evaluated after statistical elimination of 

 several unsignificant parameters. All of the parameters proved signifi- 

 cant except tiie (X^) i.e., (number of snail )^ factor. 



Parameter Estimate PR (T) 



Intercept 2.8613 .0001** 



SFAREA -0.0003 .0489* 



I Count 0.0266 .0050** 



X 1.0896 .0413* 



X2 -0.2993 .1368 



X-N -1.1446 .0022** 



X-N^ 0.1392 .0076** 



X^.N 0.2914 .0251** 



X^-N^ -0.0361 .0468** 



** - Highly significant (99%) .01 

 * - Significant (95%) .05 

 SFAREA- Source of error due to surface area 

 I count - Pretreatment mite count 

 X - Number of snails 

 N - Number of days (or nights) 

 R^ value = .14986 



