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Table 1 Larval and pupal life history traits (mean ± SE) of Dendrolimus punctatus when larvae reared on different aged host species based on univariate procedure of GLM

From: Life history traits in a capital breeding pine caterpillar: effect of host species and needle age

Parameters Host species Needle age
P. massoniana P. elliottii F Previous-year needles Current-year needles F
Larval survivorship (%) 46.00 ± 3.93 19.67 ± 3.98 35.06** 39.00 ± 6.26 26.67 ± 6.81 7.69*
Pupal survivorship (%) 86.42 ± 5.33 41.07 ± 4.03 65.79** 70.70 ± 10.87 56.79 ± 10.63 6.20*
Larval development times (days) 32.83 ± 0.48 43.48 ± 0.60 212.27** 34.17 ± 0.69 38.73 ± 0.68 44.30**
Pupal development times (days) 7.16 ± 0.09 8.39 ± 0.22 29.62** 7.15 ± 0.12 7.76 ± 0.15 8.11**
Female pupal weight (g) 0.99 ± 0.03 0.69 ± 0.03 36.11** 0.84 ± 0.04 0.80 ± 0.06 2.73
Male pupal weight (g) 0.66 ± 0.01 0.43 ± 0.01 193.89** 0.58 ± 0.02 0.51 ± 0.02 15.05**
Percentage of adult emergence (%) 39.67 ± 4.11 8.67 ± 2.29 151.74** 30.33 ± 8.11 18.00 ± 6.11 24.02**
Percentage of female progeny (%) 40.21 ± 2.63 28.06 ± 7.10 2.18 36.93 ± 3.85 31.34 ± 7.36 0.46
Female growth index (mg/day) 31.25 ± 1.75 16.04 ± 0.76 62.04** 23.90 ± 1.84 20.15 ± 2.12 10.11**
Male growth index (mg/day) 21.06 ± 0.89 9.74 ± 0.34 130.49** 17.39 ± 1.09 13.20 ± 1.05 15.37**
  1. Asterisk indicate significant differences between host species and needle age within parameters of larval and pupal life-history traits (*P < 0.05; **P < 0.01)