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Table 1 Mean (± SE) pre-oviposition, oviposition periods and longevity, mean number (± SE) of total and daily eggs laid per female, total and daily number (± SE) of prey consumed per female for Neoseiulus californicus fed solely on Tetranychus urticae (T.u.) or larval Neoseiulus barkeri (N.b.), Amblyseius swirskii (A.S.) or on a combination of T. urticae and larval phytoseiid

From: Intraguild predation in three generalist predatory mites of the family Phytoseiidae (Acari: Phytoseiidae)

Prey and number

Periods

Eggs laid per females

Consumption rates

Ratio of T. u: predator larvae consumed

Pre-oviposition

Oviposition

Longevity

Total eggs

Daily eggs

Total consumption

Daily consumption

T.u.

Phytoseiid larvae

T.u.

Phytoseiid larvae

20 T.u.

1.58 ± 0.10 b

26.17 ± 0.17 a

30.25 ± 0.23 a

37.50 ± 0.23 a

1.44 ± 0.02 a

444.5 ± 4.20 a

 

14.69 ± 0.05 a

  

20 N.b.

0.00 ± 0.00 c

0.00 ± 0.00 e

23.50 ± 0.25 e

0.00 ± 0.00 f

0.00 ± 0.00 e

 

124.83 ± 1.59 b

 

5.31 ± 0.02 b

 

20 A.s.

2.00 ± 0.00 a

25.00 ± 0.15 bc

29.58 ± 0.20 ab

19.75 ± 0.19 e

0.79 ± 0.01 d

 

363.92 ± 2.04 a

 

12.30 ± .02 a

 

10 T.u. + 10 N.b.

1.67 ± 0.10 ab

23.42 ± 0.22 d

27.58 ± 0.28 d

19.50 ± 0.25 e

0.83 ± 0.01 d

194.5 ± 1.03 e

53.25 ± 0.88 e

7.07 ± 0.08 d

1.93 ± 0.03 e

3.68:1

10 T.u. + 10A.s.

1.58 ± 0.10 b

24.25 ± 0.19 c

28.25 ± 0.23 cd

24.00 ± 0.17 d

0.99 ± 0.01 c

231.92 ± 1.11 d

79.25 ± 0.68 d

8.22 ± 0.70 c

2.81 ± 0.01 d

2.93:1

20 T.u. + 20 N.b.

1.75 ± 0.09 ab

25.58 ± 0.25 ab

29.17 ± 0.25 bc

27.58 ± 0.20 b

1.08 ± 0.01 b

424.33 ± 2.86 b

103.08 ± 1.32 c

14.57 ± 0.15 a

3.53 ± 0.02 c

4.13:1

20 T.u. + 20A.s.

1.75 ± 0.09 ab

25.33 ± 0.25 b

28.67 ± 0.25 bc

26.67 ± 0.23 c

1.06 ± 0.02 b

379.58 ± 5.81 c

107.67 ± 4.67 c

13.23 ± 0.14 b

3.75 ± 0.15 c

3.67:1

F

65.95

2463.95

85.70

3364.53

1548.31

4009.60

3017.31

5255.02

4384.79

853.77

P

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

0.000

  1. Where applicable, the ratio of T. urticae to larval phytoseiids consumed by adult females is given. Values in each column followed by the same letter are not significantly different (P > 0.05) when Neoseiulus californicus fed on 20 T. urticae/phytoseiid larvae are compared to their other four prey combinations