Skip to main content

Table 2 Egg-hatching rates of Leptinotarsa decemlineata eggs treated with fourteen indigenous Beauveria bassiana isolates, egg-hatching inhibitory effects of tested fungal isolates, and mortality rates of fed 1st larval instar during molting to 2nd instar*

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

Isolate name

Egg-hatching (%)

Inhibition of egg-hatching (%)

First instar mortality (%)

BbKm-1

70.0±0.0bc**

30.0

20.0±0.0d

BbKm-2

93.3±3.3a

6.7

6.7±3.3f

BbDm-1

10.0±0.0e

90.0

60.0±0.0a

BbFn-3

66.7±3.3bc

33.3

23.3±3.3cd

BbKp-1

43.3±3.3d

56.7

40.0±0.0b

BbAk-1

80.0±0.0ab

20.0

10.0±0.0ef

BbSr-1

76.7±6.7b

23.3

16.7±3.3e

BbKr-1

60.0±5.8c

40.0

33.3±3.3bc

BbDs-2

10.0±0.0e

90.0

63.3±3.3a

BbMg-1

60.0±0.0c

40.0

30.0±0.0c

BbMg-2

6.7±3.3e

93.3

60.0±5.8a

BbMp-1

10.0±0.0e

90.0

63.3±3.3a

BbGp-1

43.3±3.3d

56.7

40.0±0.0b

BbKl-1

66.7±3.3bc

33.3

26.7±3.3c

df

41

-

41

F

85.0

-

49.7

P

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 letter are not significantly different (Tukey’s HSD test; P < 0.05)