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Table 3 Percentage mortalities of young larvae (1st and 2nd instars) of Leptinotarsa decemlineata in response to the tested Beauveria bassiana isolates at 3, 5, 7, and 9 days after treatment under laboratory conditions

From: Efficacy of indigenous isolates of Beauveria bassiana (Balsamo) Vuillemin (Deuteromycota: Hyphomycetes) against the Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae)

Isolate name Percent mortality (±SE) from a single-dose trial* df F P
3 days 5 days 7 days 9 days
BbKm-1 8.3±1.7cdC** 30.0±5.7efB 41.7±1.7deAB 56.7±6.7cA 11 20.0 0.000
BbKm-2 0.0±0.0dC 15.0±5.0fBC 26.7±6.7eB 53.3±3.3cA 11 25.2 0.000
BbDm-1 46.7±4.4abC 78.3±4.4abcB 95.0±5.0aAB 98.3±1.7aA 11 33.4 0.000
BbFn-3 6.7±4.4dB 25.0±8.7fB 61.7±6.0cdA 70.0±5.0bcA 11 23.2 0.000
BbKp-1 3.3±3.3dC 53.3±3.3deB 88.3±6.0abA 91.7±8.9abA 11 52.8 0.000
BbAk-1 0.0±0.0dC 13.3±3.3fBC 30.0±5.0eAB 46.7±6.0cA 11 22.7 0.000
BbSr-1 30.0±2.9bcB 81.7±1.7abA 85.0±2.9abA 86.7±3.3abA 11 97.6 0.000
BbKr-1 48.3±1.7abB 58.3±4.4bcdAB 80.0±7.6abcA 85.0±7.6abA 11 13.7 0.002
BbDs-2 50.0±5.0abC 78.3±1.7abcB 83.3±3.3abcAB 96.7±1.7aA 11 37.0 0.000
BbMg-1 36.7±10.1abB 58.3±4.4bcdAB 71.7±6.0bcA 86.7±3.3abA 11 10.7 0.004
BbMg-2 46.7±3.3abC 56.7±1.7cdC 75.0±2.9abcB 100.0±00aA 11 98.8 0.000
BbMp-1 38.3±1.7abD 78.3±1.7abcC 91.7±1.7abB 100.0±00aA 11 358.6 0.000
BbGp-1 5.0±2.9dC 50.0±7.6deB 71.7±1.7bcA 86.7±4.4abA 11 57.0 0.000
BbKl-1 53.3±6.7aB 85.0±2.9aA 88.3±6.0abA 88.3±6.0abA 11 9.3 0.006
df 41 41 41 41    
F 23.0 30.5 25.4 15.3    
P 0.000 0.000 0.000 0.000    
  1. *In a single-dose trial, all the isolates were tested at a concentration of 1 × 107 conidia/ml
  2. **Means in a column followed by the same lower-case letter are not significantly different, and means in a row followed by the same upper-case letter are not significantly different (Tukey’s HSD test; P < 0.05)