Table 1
Non-fumigant chemical and biological nematicide treatments and their recommended application rates used in the current study.
| Treatment | Application rate (L/ha) |
|---|---|
| Oxamyl | 4.68 |
| Fluopyram | 0.50 |
| Fluensulfone | 4.09 |
| Burkholderiaa | 18.71 |
| Untreated control | – |
Figure 1
Reproduction of Meloidogyne enterolobii expressed as number of eggs per root system of tobacco inoculated with 1,000 freshly hatched second-stage juveniles, treated with non-fumigant nematicides, and harvested at 60 d after inoculation. Data were combined over two experiments and are means of 10 replications. Within columns, means followed by a common letter are not significantly different according to Tukey’s HSD test (P ≤ 0.05). Burkholderia refers to Burkholderia rinojensis strain A396 secondary metabolites.
Figure 2
Reproduction of Meloidogyne enterolobii expressed as number of second-stage juveniles per 100 cm3 of soil containing tobacco inoculated with 1,000 freshly hatched second-stage juveniles, treated with non-fumigant nematicides, and harvested at 60 d after inoculation. Data were combined over two experiments and are means of 10 replications. Within columns, means followed by a common letter are not significantly different according to Student’s t-test (P ≤ 0.05). Burkholderia refers to Burkholderia rinojensis strain A396 secondary metabolites.
Figure 3
Dry weights of tobacco roots 60 d after inoculation with 1,000 freshly hatched second-stage juveniles of Meloidogyne enterolobii and application of non-fumigant nematicides. Data are means of 10 replications. The plant material was dried at 45°C for 2 wk. Bars with common letters are not significantly different according to Tukey’s HSD test (P ≤ 0.05).