Table 5 Percentages of reduction of number of the root-knot nematode, Meloidogyne incognita infecting cowpea, number of galls and percentages of increase in number of bacterial nodules as affected by three culture filtrates from Beauveria bassiana, Metarhiziam aniisopliae, and Paecilomyces lilacinus
Treatments | Dilution | % reductions in no. of nematodes | % mean total percentages nematode reduction | % reduction in no. of galls | % increases in no. of bacterial nodules | ||
|---|---|---|---|---|---|---|---|
J2s in soil | J2s in roots | Egg masses | |||||
Beauveria bassiana | S | 86.4 | 85.7 | 71.1 | 81.1 | 75.8 | 72.4 |
S/2 | 80.0 | 82.9 | 65.8 | 76.2 | 72.7 | 65.5 | |
S/4 | 63.6 | 68.8 | 52.6 | 61.7 | 60.6 | 24.1 | |
Metarhiziam aniisopliae | S | 88.2 | 76.3 | 71.1 | 78.5 | 69.7 | 44.8 |
S/2 | 81.8 | 63.4 | 63.2 | 69.5 | 68.2 | 34.5 | |
S/4 | 75.5 | 57.1 | 47.4 | 60.0 | 51.5 | 17.1 | |
Paecilomyces lilacinus | S | 86.4 | 82.9 | 84.2 | 84.5 | 77.3 | 62.1 |
S/2 | 77.3 | 77.1 | 73.7 | 76.0 | 74.2 | 51.7 | |
S/4 | 61.8 | 77.1 | 60.5 | 66.5 | 69.7 | 31.0 | |
Untreated (control) | – | 00.0 | 00.0 | 00.0 | 00.0 | 00.0 | 00.0 |