Response of redbud (Cercis) taxa to inoculation with root-knot nematodes (Meloidogyne spp.)1
| Species source | M. arenaria | M. hapla | M. incognita | M. javanica | |
|---|---|---|---|---|---|
| Race 1 | Race 2 | ||||
| C. canadensis | |||||
| Commercial | 5(0) | 3(0) | 4(12) | 4(0) | 3(0) |
| Michigan | 3(0) | 2(0) | 3(6) | 2(0) | 4(0) |
| N. Carolina | 3(0) | 2(0) | 3(0) | 3(0) | 3(0) |
| Pennsylvania | 4(0) | 4(0) | 3(0) | 4(0) | 2(0) |
| Tennessee | 4(0) | 4(0) | 4(2) | 4(0) | 2(0) |
| Virginia | 2(0) | 2(0) | 4(2) | 2(0) | 4(0) |
| C. chinensis | 5(0) | 4(0) | 4(13) | 4(0) | 4(0) |
| (C. chingii) | 5(0) | 4(0) | 5(17) | 4(0) | 5(0) |
| C. occidentalis | 5(2) | 5(2) | 4(25) | 5(7) | 5(11) |
| C. racemosa | 5(8) | 5(16) | 5(16) | 5(15) | 5(16) |
| C. siliquastrum | 5(34) | 5(16) | 5(29) | 5(17) | 5(13) |
| C. yunnanensis | 5(0) | 5(0) | 4(1) | 5(0) | 5(0) |
↵1/ First number refers to worst case gall rating: 0=no galls; 1 = from one to two galls; 2 = three to 10 galls; 3 = 11 to 30 galls; 4 = 31 to 100 galls; 5 = more than 100 galls per root system. Number in parentheses is the percentage of galls containing viable egg masses.