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Table 6 Life table parameters of Neosiulus cucumeris and N. barkeri fed on three different kinds of insect eggs and incubated at 27 °C and 70% RH

From: The availability of rearing Neoseiulus cucumeris (Oud.) and Neoseiulus barkeri (Hughes) (Acari: Phytoseiidae) on three insect egg species

Life table parameters

Neoeiulus barkeri

Neoseiulus cucumeris

A. kuehniella

S. littoralis

S. cerealella

A. kuehniella

S. littoralis

S. cerealella

T

25.80

29.69

35.37

17.42

20.37

23.45

DT

14.58

18.66

23.73

11.17

12.72

17.07

Ro

11.84

9.36

8.09

9.02

9.47

6.87

rm

0.096

0.075

0.059

0.126

0.110

0.082

erm

1.100

1.078

1.061

1.134

1.116

1.085

GRR

20.04

19.20

23.69

11.52

16.25

12.45

Sex ratio

0.56

0.52

0.52

0.58

0.56

0.52

Survival %

90

84

80

88

86

82

No. mites

16

16

15

16

15

17

  1. Gross reproductive rate (GRR) is the mean total number of eggs produced by a female over its life time, (GRR = ΣMx) measured in female eggs/female/generation