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Table 6 Mean parameters (± SE) of the Helicoverpa armigera life table subjected to different isolates of the fungi Beauveria bassiana and Metarhizium anisopliae over one generation at 25 ± 1 °C and 70 ± 10% RH

From: Sublethal effects of different fungal isolates on Helicoverpa armigera (Lepidoptera: Noctuidae)

 

Population parameters

Treatments

Beauveria bassiana

T (daya)

Ro

r (day−1)

ƛ (day−1)

GRR

ARSEF 1149

40.03 ± 0.15 b

97.34 ± 15.88 b

0.114 ± 0.00 b

1.12 ± 0.00 a

97.34 ± 15.88 c

ESALQ 1288

51.07 ± 0.32 a

83.12 ± 16.41 c

0.086 ± 0.00 c

1.09 ± 0.00 a

87.05 ± 18.01 d

IBCB 36

31.93 ± 0.11 c

70.14 ± 17.24 d

0.133 ± 0.00 a

1.14 ± 0.00 a

78.39 ± 19.01 e

IBCB 170

42.76 ± 0.14 b

63.58 ± 19.39 e

0.097 ± 0.00 c

1.10 ± 0.00 a

146.44 ± 38.82 b

IBCB 1363

40.15 ± 0.24 b

98.48 ± 24.85 b

0.114 ± 0.00 b

1.12 ± 0.00 a

148.94 ± 36.55 b

Control

41.29 ± 0.16 b

216.58 ± 35.01 a

0.130 ± 0.00 a

1.11 ± 0.00 a

248.61 ± 44.39 a

Treatments

Metarhizium anisopliae

T (day)

Ro

r (day−1)

ƛ (day−1)

GRR

IBCB 425

43.63 ± 0.28 c

172.84 ± 34.50 b

0.118 ± 0.00 b

1.13 ± 0.00 a

205.23 ± 42.71 b

ESALQ 860

51.05 ± 0.28 b

127.24 ± 22.23 c

0.094 ± 0.00 c

1.09 ± 0.00 a

136.45 ± 25.41 c

ESALQ 1051

61.05 ± 0.33 a

92.48 ± 21.09 d

0.074 ± 0.00 d

1.07 ± 0.00 a

113.35 ± 26.16 d

Control

41.29 ± 0.16 c

216.58 ± 35.01 a

0.130 ± 0.00 a

1.11 ± 0.00 a

248.61 ± 44.39 a

  1. The data of each parameter were calculated using 100,000 bootstraps. Means followed by the same letters are not different by the paired bootstrap test (p < 0.05). T average duration of one generation (days); Ro net reproduction rate, r intrinsic rate of increase (day 1), λ finite rate of increase (day−1)