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Damaging threshold levels of root-knot nematodeMeloidogyne incognitaand root-rot fungusFusarium solanion plant growth parameters, viz., plant length, fresh and dry weight of chilli were determined by conducting their pathogenicity trials in pot experiments. The results revealed a significant reduction in the plant growth parameters at and above the inoculum level of about 1000 J2per plant ofM. incognitaand the highest reduction was recorded at 8000 J2per plant. Significant reduction in plant growth parameters was recorded at 1.00 g mycelial mat ofF. solaniper plant, while the highest reduction was observed at 8.00 g mycelial mat per plant. The damaging threshold level was 1000 J2per plant ofM. incognitaand 1.00 g mycelial mat ofF. solani. [ABSTRACT FROM PUBLISHER]

The individual, concomitant and sequential inoculation of second stage juveniles (at 2000 J2/kg soil) of Meloidogyne incognita and Rhizoctonia solani (at 2 g mycelial mat/kg soil) showed significant reduction in plant growth parameters viz. plant length, fresh weight and dry weight as compared to control. The greatest reduction in plant growth parameters was recorded in the plants simultaneously inoculated with M. incognita and R. solani followed by sequential and individual inoculation. In sequential inoculation, plant inoculated with M. incognita 15 days prior to R. solani shows more reduction in comparison to plant inoculated with R. solani 15 days prior to M. incognita. Moreover, the multiplication of nematode and number of galls/root system were significantly reduced in concomitant and sequential inoculation as compared to individual inoculation, whereas the intensity of root-rot/root system caused by R. solani was increased in the presence of root-knot nematode M. incognita as compared to when R. solani was inoculated individually. [ABSTRACT FROM AUTHOR]

A pathogenicity test was conducted against root-knot nematode, Meloidogyne incognita and root rot fungus, Rhizoctonia solani on okra (Abelmoschus esculentus). The results showed that with the increase in the inoculum of M. incognita i.e. from 250-8000 J2/plant and R. solani from 0.25 - 8.0 g mycelial mat/plant caused reduction in plant growth parameters viz., length, fresh weight and dry weight. The highest reduction in plant growth parameters was recorded in the plants inoculated with the 8000 J2/kg of M. incognita and 8.0 g mycelial mat of R. solani/plant of fungus whereas the least reduction was recorded in 250 J2/plant of nematode and 0.25g mycelial mat/plant. However the significant reduction in plant growth parameters was recorded in the plants inoculated with at and above 2000J2/kg and 2g mycelial mat/plant of nematode (M. incognita) and fungus (R. solani) respectively. So these levels were pathogenic level. [ABSTRACT FROM AUTHOR]