Table 2.
Soil fumigation efficacy on numbers of Meloidogyne spp. recovered from 100 g of soil, colony-forming units (cfu) Fusarium spp. and Phytophthora spp. on selective media of 1 g from soil after fumigation, respectively.
| Site | Treatmenta | Rate | Meloidogyne spp. | Fusarium spp. | Phytophthora spp. | |||
|---|---|---|---|---|---|---|---|---|
| (g a.i. m−2) | No./100 g | % reduction | cfu/g | % reduction | cfu/g | % reduction | ||
| Trial one, 2012 | DMDS | 60 | 28cb | 91.5 | 38c | 91.3 | 953bc | 76.5 |
| MNa | 42 | 114b | 65.5 | 156b | 64.2 | 1820b | 55.1 | |
| DMDS + MNa | 30 + 21 | 46c | 86.1 | 28c | 93.6 | 560 cd | 86.2 | |
| MB | 40 | 24c | 92.7 | 0d | 100 | 30d | 99.3 | |
| Untreated | / | 194a | / | 436a | / | 4053a | / | |
| Trial two, 2013 | DMDS | 60 | 38bc | 88.5 | 2570ab | 53.4 | 2178b | 70.4 |
| MNa | 42 | 101b | 69.4 | 1492b | 73.0 | 1778b | 75.8 | |
| DMDS + MNa | 30 + 21 | 34bc | 89.7 | 1103b | 80.0 | 1392bc | 81.1 | |
| MB | 40 | 13c | 96.1 | 342c | 93.8 | 880c | 88.0 | |
| Untreated | / | 330a | / | 5515a | / | 7350a | / | |
aAbbreviations: DMDS = dimethyl disulfide; MNa = metam sodium; MB = methyl bromide.
bIn each column, data are means of three repeats. Means followed by the same letter are not different (P = 0.05) according to the LSD test.