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saturation-deficit

International Journal of Tropical Insect Science (1)

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1 results

Hatching pattern and survival of first instars of Ectropis excursaria (Guenee) (Geometridae: Lepidoptera)
R. Ramachandran
Journal:

Insect Science and Its Application / Volume 10 / Issue 4 / August 1989

Published online by Cambridge University Press:

19 September 2011, pp. 507-511

Print publication:

August 1989
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In field conditions in South Australia hatching of eggs of Ectropis excursaria showed a morning and an afternoon peak. In the laboratory, hatching coincided with “lights-on” stimulus at 20°C, 10:14 and 12:12 L:D. Increase or decrease of temperature by 5°C shifted the start of hatching to late scotophase while increasing photoperiod shifted a substantial proportion of hatching to later in photophase. Survival of first instars was linearly related to saturation-deficit of the atmosphere.