Table 1.

Results of analysis of variance, which compared the number of active holes for each treatment and the nontreated control at each inspection.z

Date of countSum of squaresdfMean squareFSignificance
Pretreatment count
15 November 2006
Between groups         4.367  3        1.4561.8730.175
Within groups       12.43316        0.777
Total       16.80019
23 October 2006Between groups         9.617  3        3.2065.5850.008
Within groups         9.18316        0.574
Total       18.80019
30 October 2006Between groups       19.300  3        6.4335.0210.012
Within groups       20.50016        1.281
Total       39.80019
6 November 2006Between groups       10.300  3        3.4330.8390.492
Within groups       65.50016        4.094
Total       75.80019
13 November 2006Between groups       76.317  3      25.4391.2780.316
Within groups     318.48316      19.905
Total     394.80019
20 November 2006Between groups       25.917  3        8.6390.5420.660
Within groups     255.03316      15.940
Total     280.95019
27 November 2006Between groups       69.350  3      23.1170.6340.604
Within groups     583.45016      36.466
Total     652.80019
4 December 2006Between groups       73.750  3      24.5830.3430.794
Within groups  1,145.45016      71.591
Total  1,219.20019
11 December 2006Between groups       65.417  3      21.8060.2580.855
Within groups  1,353.13316      84.571
Total  1,418.55019
Final count 29 January 2007Between groups  1,093.267  3    364.4220.2580.855
Within groups22,631.28316  1,414.455
Total23,724.55019
  • zSignificance was found on two dates, 23 October and 30 October, when there were more holes with the Crop Guardian treatment than all other treatments.