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Table 3 The lower developmental thresholds and total day-degree of non-overwintering generation of Aphelinus mali for two genetic clades in China

From: Temperature adaptability of two clades of Aphelinus mali (Hymenoptera: Aphelinidae) in China

Parasitoid clade tested

Lower developmental threshold (°C)

Total DD (day-degree) per life stage (oviposition to adult eclosion)

Shandong clade

Liaoning clade

Shandong clade

Liaoning clade

9.32 ± 1.62a

12.96 ± 1.56b

134.61 ± 20.77a

88.42 ± 16.65b

10.61 ± 1.58a

13.33 ± 0.79b

116.12 ± 16.60a

82.02 ± 7.36b

♀ + ♂

9.82 ± 1.44

10.72 ± 0.24

126.45 ± 16.81

107.99 ± 3.44

  1. Values in the table are mean ± SD