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Table 3 Demographic parameters of Fall Armyworm on rice and maize hosts: intrinsic rate of natural increase (rm, day−1), net reproductive rate (R0), generation time (tG, day), finite rate of increase (λ) and doubling time (tD, day)

From: Development and demographic parameters of Fall Armyworm (Spodoptera frugiperda J.E. Smith) when feeding on rice (Oryza sativa)

Host

Na

rm

R0

tG

λ

tD

Rice

28

0.121 ± 0.007

66.18 ± 2.76

36.07 ± 1.23

1.13 ± 0.006

5.95 ± 0.194

Maize

26

0.173 ± 0.006

256.83 ± 1.10

32.57 ± 0.75

1.19 ± 0.005

4.07 ± 0.091

t value

 

175.97

156.71

− 2.4712

7.7061

− 9.0012

P value

 

 < 0.001

 < 0.001

0.0173

 < 0.001

 < 0.001

df

 

52

35

45

52

39

  1. a Number of females tested
  2. b Data analysed using Welch two sample t test; two sided with 95% confidence level
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CABI Agriculture and Bioscience

ISSN: 2662-4044