Figure 1:
Host status of 10 weed species common in North Carolina, USA to the RKN Meloidogyne incognita race 4 in two separate greenhouse trials_ Weed plants were inoculated with 5,000 eggs of M_ incognita and evaluated for egg production and root galling 60 days post inoculation_ Values are the mean of five replicate plants per trial_ Values followed by the same letter within the column are not significantly different at the α = 0_05 level_
| Weed Species | Rfa | Gall Ratingb | R/S | ||
|---|---|---|---|---|---|
| Trial 1 | Trial 2 | Trial 1 | Trial 2 | ||
| Palmer amaranth (Amaranthus palmeri) | 2.84c | 3.48c | 9b | 5b | S |
| Yellow nutsedge (Cyperus esculentus) | 0.24a | 0.24a | 0a | 0a | R |
| Purple nutsedge (Cyperus rotundus) | 12.87c | 4.36c | 5a | 5b | S |
| Jimsonweed (Datura stramonium) | 0.06a | 0.04a | 0a | 0a | R |
| Large crabgrass (Digitaria sanguinalis) | 0.08a | 0.05a | 0a | 0a | R |
| Entireleaf morningglory (Ipomoea hederacea) | 4.14c | 4.40c | 5a | 10b | S |
| Pitted morningglory (Ipomoea lacunosa) | 14.23c | 9.84c | 10b | 10b | S |
| Pink purslane (Portulaca pilosa) | 8.79c | 11.31c | 60b | 35c | S |
| Sicklepod (Senna obtusifolia) | 0.08a | 0.07a | 0a | 0a | R |
| Prickly sida (Sida rhombifolia) | 1.80b | 2.04b | 5a | 5b | S |
Host status of 10 weed species common in North Carolina, USA to the RKN Meloidogyne enterolobii in two separate greenhouse trials_ Weed plants were inoculated with 5,000 eggs of M_ enterolobii and evaluated for egg production and root galling 60 days post inoculation_ Values are the mean of five replicate plants per trial_ Values followed by the same letter within the column are not significantly different at the α = 0_05 level_
| Weed Species | Rfa | Gall Ratingb | R/S | ||
|---|---|---|---|---|---|
| Trial 1 | Trial 2 | Trial 1 | Trial 2 | ||
| Palmer amaranth (Amaranthus palmeri) | 2.69b | 3.35b | 5b | 5b | S |
| Yellow nutsedge (Cyperus esculentus) | 0.13a | 0.09a | 0a | 0a | R |
| Purple nutsedge (Cyperus rotundus) | 0.53a | 0.44a | 0a | 0a | R |
| Jimsonweed (Datura stramonium) | 0.08a | 0.06a | 0a | 0a | R |
| Large crabgrass (Digitaria sanguinalis) | 0.06a | 0.07a | 0a | 0a | R |
| Entireleaf morningglory (Ipomoea hederacea) | 5.36b | 5.14b | 14b | 20b | S |
| Pitted morningglory (Ipomoea lacunosa) | 8.26b | 8.03b | 19b | 10b | S |
| Pink purslane (Portulaca pilosa) | 9.64b | 7.18b | 50b | 25b | S |
| Sicklepod (Senna obtusifolia) | 0.15a | 0.10a | 0a | 0a | R |
| Prickly sida (Sida rhombifolia) | 0.07a | 0.05a | 0a | 0a | R |