Some developmental differences inEpinotia granitalis (Lepidoptera: Tortricidae) between two host tree species |
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Authors: | Kazutaka Kato |
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Institution: | (1) Kansai Breeding Office, National Forest Tree Breeding Center, 709-43 Okayama, Japan |
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Abstract: | To detect developmental differences inEpinotia granitalis in two host tree speciesCryptomeria japonica andChamaecyparis obtusa, the fourth or fifth instar larvae were collected daily from the two species located on the grounds of the National Forest
Tree Breeding Center, from April 19 to May 9 in 1994 and April 18 to May 10 in 1995. Larvae ofE. granitalis collected fromC. obtusa had heavier body weight, developed to larger adults than those collected fromC. japonica, and mortality from the fourth or fifth instar larval stage to adults onC. obtusa was lower than that onC. japonica. All these facts suggest that larval performance onC. obtusa was higher than that onC. japonica. |
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Keywords: | developmental difference Epinotia granitalis larval performance life cycle population dynamics |
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