Table 1 Percentages of parasitism and developmental period of Trichogrammatoidea bactrae in parental generation during storage of parasitoid larvae at different low temperatures

Temp.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

4 °C

74.19 ± 2.65Bc

30.15 ± 1.49Cb

11.08 ± 1.38Db

3.93 ± 1.18Eb

2.40 ± 0.22Fc

1.30 ± 0.14Gc

–

–

–

–

–

–

–

–

–

–

7 °C

86.65 ± 1.02Aa

89.25 ± 1.16Aa

87.41 ± 0.90Aa

86.73 ± 0.78Aa

84.09 ± 1.17ABb

80.68 ± 1.38CDb

81.91 ± 1.61BCa

78.14 ± 1.34Db

77.64 ± 1.14Da

–

–

–

–

–

–

–

10 °C

81.91 ± 1.26BCb

84.34 ± 3.68ABa

91.55 ± 1.01Aa

90.16 ± 1.11Aa

92.08 ± 1.15Aa

89.13 ± 1.15Aa

80.3 ± 2.44Ca

83.82 ± 2.25Ba

81.85 ± 1.79BCa

91.34 ± 1.43A

91.97 ± 0.91A

92.84 ± 0.54A

92.39 ± 1.0A

89.22 ± 1.37A

85.36 ± 2.04A

87.14 ± 2.05A

Control

Temp.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

4 °C

9.19 ± 0.26Da

13.51 ± 0.29Ba

13.67 ± 0.49Ba

12.75 ± 0.19Ca

13.61 ± 0.14Ba

14.30 ± 0.00Aa

–

–

–

–

–

–

–

–

–

–

7 °C

7.44 ± 0.15Gb

7.41 ± 0.13Gb

7.98 ± 0.06Fb

7.92 ± 0.08Fb

9.24 ± 0.18Eb

9.75 ± 0.15Db

10.43 ± 0.12Ca

10.91 ± 0.26Ba

11.50 ± 0.41Aa

–

–

–

–

–

–

–

10 °C

7.69 ± 0.16Fb

6.51 ± 0.19FGb

6.31 ± 0.17Gc

5.55 ± 0.14Hc

4.83 ± 0.20Ic

4.88 ± 0.20HIc

4.17 ± 0.24Jb

2.98 ± 0.14Kb

2.27 ± 0.25Lb

10.87 ± 0.27D

13.40 ± 0.21B

14.51 ± 0.15A

12.51 ± 0.15C

10.07 ± 0.22DE

9.94 ± 0.27E

9.59 ± 0.10E

Control