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Egyptian Journal of Biological Pest Control

Table 2 Lethal time (LT50 and LT90) for Sitophilus granarius treated with the tested entomopathogenic fungal isolates at 20 and 25 °C

From: Efficacy of entomopathogenic fungi against the stored-grain pests, Sitophilus granarius L. and S. oryzae L. (Coleoptera: Curculionidae)

Isolates***

Temperatures

20 °C

25 °C

LT50 (95% confidence limit)

LT90 (95% confidence limit)

χ 2

LT50 (95% confidence limit)

LT90 (95% confidence limit)

χ 2

TR-01

3.21 (2.45–3.99) ab* A**

5.50 (4.57–7.45) a B

20.64

4.01 (3.29–4.78) b A

5.90 (5.07–7.60) b B

32.61

TR-07

6.03 (5.54–6.67) a A

10.09 (9.02–11.70) a B

4.88

7.26 (6.13–9.96) a A

11.39 (9.09–17.83) a A

14.35

TR-78-3

2.43 (1.27–4.05) b A

4.13 (3.07–10.40) a A

16.92

2.78 (1.96–3.72) b A

4.52 (3.62–7.08) b A

21.05

TR-106

2.71 (1.93–3.80) b A

4.47 (3.51–7.92) a A

10.19

2.82 (2.52–3.26) b A

4.54 (3.93–5.60) b B

2.96

TR-217

2.95 (1.95–5.42) a b A

5.35 (3.88–14.57) a A

11.03

3.91 (3.66–4.17) b A

6.11 (5.74–6.58 b B

8.66

F

4.310

1.092

 

11.514

6.234

 

P

0.028

0.411

 

0.001

0.009

 
  1. *The same small letters within columns indicates no significant differences between means
  2. **The same capital letters within rows indicates no significant differences between means
  3. ***TR-01 (Simplicillium lamellicola), TR-07 (Lecanicillium muscarium), TR-78-3 (Isaria fumosorosea), TR-106 (Metarhizium anisopliae), and TR-217 (Beauveria bassiana)
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