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Egyptian Journal of Biological Pest Control

Table 1 Concentration response bioassays of three different HearNPV isolates against Helicoverpa armigera larvae over a period of 10 days

From: Comparative evaluation of temperate, subtropical, and tropical isolates of nucleopolyhedrovirus against tomato fruit borer, Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae)

Isolates

LC50 (OBs/larva)

Confidence limits 95%

Heterogeneity (χ2)

Coefficient of determination (r2)

p value

HearNPV-IND-K

4.62 × 103

2.73 × 103–8.84 × 103

45.651

0.96

 < 0.001

HearNPV-IND-J

5.99 × 104

3.15 × 104–1.94 × 105

60.144

0.95

 < 0.001

HearNPV-IND-B

7.24 × 104

4.04 × 104–2.48 × 105

51.998

0.95

 < 0.001

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