Table 3 Association between the wireworm density (number of wireworms per trap) and plant damage at Y0.
Species | Larvae/ trap threshold | Damaged plants (N.) | No. of records | Range of damage probability | Mean damage probability | RR (high vs. low) | SE | 95% CI | Wald χ–square | P χ–square test |
|---|---|---|---|---|---|---|---|---|---|---|
A. brevis | ≤1 | ≤15% | 48 | 0.07–0.22 | 0.13 | 21 | 14.66 | 5.34–82.53 | 19.01 | <0.001 |
>15% | 2 | |||||||||
>1 | ≤15% | 4 | 0.23–0.99 | 0.68 | ||||||
>15% | 21 | |||||||||
A. sordidus | ≤2 | ≤15% | 238 | 0.02–0.21 | 0.04 | 20.05 | 7.61 | 9.53–42.20 | 62.38 | <0.001 |
>15% | 8 | |||||||||
>2 | ≤15% | 8 | 0.22–0.99 | 0.58 | ||||||
>15% | 15 | |||||||||
A. ustulatus | ≤5 | ≤15% | 91 | 0.01–0.05 | 0.02 | 15.33 | 17.26 | 1.69–139.23 | 5.88 | 0.0153 |
>15% | 1 | |||||||||
>5 | ≤15% | 15 | 0.05–0.46 | 0.13 | ||||||
>15% | 3 |
