Table 7 Percentages of reduction of number of the root-knot nematode, Meloidogyne incognita infecting cowpea, number of galls and percentages of increase of number of nodules as affected by three spore concentrations from Beauveria bassiana, Metarhiziam aniisopliae, and Paecilomyces lilacinus
Treatments | Concentration | % reduction in no. of nematodes | % mean total percentages of nematode reduction | % reduction in no. of galls | % increase in no. of nodules | ||
|---|---|---|---|---|---|---|---|
J2s in soil | J2s in roots | Egg masses | |||||
Beauveria bassiana | 1 × 108 | 90.9 | 72.0 | 68.4 | 77.1 | 66.7 | 20.7 |
1 × 107 | 77.3 | 67.7 | 60.5 | 68.5 | 63.6 | 13.8 | |
1 × 106 | 63.2 | 65.7 | 33.3 | 63.1 | 59.1 | 10.3 | |
Metarhiziam aniisopliae | 1 × 108 | 92.7 | 84.3 | 73.7 | 83.6 | 74.2 | 72.4 |
1 × 107 | 80.0 | 78.6 | 65.8 | 74.8 | 72.7 | 58.6 | |
1 × 106 | 68.1 | 78.6 | 60.5 | 69.1 | 62.1 | 17.2 | |
Paecilomyces lilacinus | 1 × 108 | 95.5 | 76.3 | 84.2 | 85.3 | 83.3 | 51.7 |
1 × 107 | 94.5 | 74.3 | 81.6 | 83.5 | 77.3 | 34.5 | |
1 × 106 | 84.1 | 70.0 | 68.4 | 74.1 | 66.7 | 20.7 | |
Untreated (control) | – | 00.0 | 00.0 | 00.0 | 00.0 | 00.0 | 00.0 |