Temperature requirements of the chrysanthemum leaf miner,Chromatomyla syngenesiae [Dipt.: Agromyzidae], and its ectoparasitoid,Diglyphus isaea [Hym.: Eulophidae] |
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| Authors: | C S-J Cheah |
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| Institution: | (1) Department of Applied Biology, University of Cambridge, Pembroke Street, CB2, 3DX Cambridge, UK |
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| Abstract: | The development rate from egg to adult for ♂ and ♀Chromatomyia (Phytomyza) syngenesiae andDiglyphus isaea increased linearly between 19 and 25°C.D. isaea had a faster developmental rate thanC. syngenesiae between 19 and 25°C but therer was no difference at 16°C. FemaleD. isaea required 154.6 D° above the theoretical threshold of 12.80°C and maleD. isaea 152.4 D° above 12.9°C for total development from egg to adult emergence. FemaleC. syngenesiae needed 207.0 D° above 12°C and ♂ and 211.0 D° above 11.6°C for total development.
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| Keywords: | Chromatomyia syngenesiae Diglyphus isaea rate of development development threshold thermal constant |
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