The Action Spectrum for Breaking Diapause in the Codling Moth, Laspeyresia pomonella (L.), and the Oak Silkworm, Antheraea pernyi Guer

The action spectrum for breaking diapause in the oak silkworm, Antheraea pernyi Guer., and the codling moth, Laspeyresia pomonella (L.), was determined from 400 to 700 nm with a wedge-interference spectrograph. Insects were exposed to ten hours of white light, followed by six hours of spectral light...

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Bibliographic Details
Published in:	Proceedings of the National Academy of Sciences - PNAS Vol. 63; no. 4; pp. 1120 - 1127
Main Authors:	Norris, K. H., Howell, F., Hayes, D. K., Adler, V. E., Sullivan, W. N., Schechter, M. S.
Format:	Journal Article
Language:	English
Published:	United States National Academy of Sciences of the United States of America 01-08-1969 National Acad Sciences
Subjects:	Biological Sciences: Physiology Cocoons Diapause Insect larvae Light Moths Physiology Pupae Silkworms Visible spectrum Wavelengths
Online Access:	Get full text
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Summary:	The action spectrum for breaking diapause in the oak silkworm, Antheraea pernyi Guer., and the codling moth, Laspeyresia pomonella (L.), was determined from 400 to 700 nm with a wedge-interference spectrograph. Insects were exposed to ten hours of white light, followed by six hours of spectral light each day for 45 days. The portion of the spectrum between 400 and 500 nm was found to be the most effective in terminating diapause. Diapause was broken for both insects with energy levels as low as 0.02 μ w/cm2.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 Entomology Research Division, Beltsville, Maryland 20705. Entomology Research Division, Yakima, Washington. Director, Instrumentation Research Laboratory, Market Quality Research Division, Beltsville, Maryland 20705.
ISSN:	0027-8424 1091-6490
DOI:	10.1073/pnas.63.4.1120