Table 2.
Results from Stage 1 analysis of the dose–response relationship for all treatments applieda
| Treatment | n | Dose levels | χ 2 | p |
|---|---|---|---|---|
| Independent | ||||
| Mustang Maxx | 640 | 4 | 146 | <0.001* |
| Altacor | 1320 | 6 | −0.931 | 1.0 |
| Intrepid | 660 | 6 | −656 | 1.0 |
| Tilt | 1240 | 6 | −272 | 1.0 |
| Pristine | 580 | 6 | −476 | 1.0 |
| Luna Sensation | 300 | 5 | −190 | 1.0 |
| Vangard | 400 | 5 | 4.32 | 0.038* |
| Dyne‐Amic | 580 | 8 | 513 | <0.001* |
| Insecticide + fungicide | ||||
| Altacor + Tilt | 1580 | 8 | 354 | <0.001* |
| Altacor + Pristine | 760 | 6 | −0.0841 | 1.0 |
| Altacor + Luna Sensation | 300 | 5 | −332 | 1.0 |
| Altacor + Vangard | 300 | 5 | −342 | 1.0 |
| Intrepid + Tilt | 380 | 5 | 8.98 | 0.00272* |
| Intrepid + Pristine | 340 | 5 | −91.9 | 1.0 |
| Intrepid + Luna Sensation | 300 | 5 | −41.3 | 1.0 |
| Intrepid + Vangard | 300 | 5 | −416 | 1.0 |
| Altacor + PBO | 300 | 5 | <0.001* | |
| + Dyne‐Amic | ||||
| Altacor + Dyne‐Amic | 400 | 5 | −149 | 1.0 |
| Intrepid + Dyne‐Amic | 200 | 5 | 1.01 | 0.31 |
| Tilt + Dyne‐Amic | 440 | 5 | −529 | 1.0 |
| Pristine + Dyne‐Amic | 280 | 5 | 19.8 | <0.001* |
| Luna Sensation + Dyne‐Amic | 280 | 5 | 20.0 | 0.00880* |
| Vangard + Dyne‐Amic | 500 | 5 | 36.4 | <0.001* |
| Altacor + Tilt + Dyne‐Amic | 920 | 8 | 379 | <0.001* |
| Altacor + Pristine + Dyne‐Amic | 600 | 5 | 198 | <0.001* |
| Altacor + Luna Sensation + Dyne‐Amic | 300 | 5 | 102 | <0.001* |
| Altacor + Vangard + Dyne‐Amic | 500 | 5 | −80.9 | 1.0 |
| Intrepid + Tilt + Dyne‐Amic | 300 | 5 | −14.9 | 1.0 |
| Intrepid + Pristine + Dyne‐Amic | 280 | 5 | −105 | 1.0 |
| Intrepid + Luna Sensation + Dyne‐Amic | 300 | 5 | −5.37 | 1.0 |
| Intrepid + Vangard + Dyne‐Amic | 300 | 5 | 3.83 | 0.050 |
aTreatments are organized in brackets by level of complexity. Independent treatments are in the top bracket, insecticide + fungicide combinations are in the middle bracket, and the bottom bracket includes all pesticide treatments from the top and middle brackets with the addition of 2% Dyne‐Amic. The total number of bees tested for each treatment is indicated by n. Degrees of freedom was 1 for all tests. Dose levels in this table represent the numbers of different doses tested for each treatment. The value and p value for each likelihood ratio test are presented, and treatments with p < 0.05 (indicated with an asterisk) represent a significant dose–response relationship.
*p < 0.05.
PBO = piperonyl butoxide.