Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Site Tools

  • AAAS
  • Subscribe
  • Feedback

Site Search

Search Advanced

Science 11 September 1964:
Vol. 145. no. 3637, pp. 1195 - 1197
DOI: 10.1126/science.145.3637.1195
Prev | Table of Contents | Next

Articles

Photoflashes: A Potential New Tool for Control of Insect Populations

Roy J. Barker 1, Charles F. Cohen 1, and Ann Mayer 1

1 Entomology Research Division, Agricultural Research Service, United States Department of Agriculture, Agricultural Research Center, Beltsville, Maryland 20705

Imported cabbageworms, Pieris rapae (L.), were reared in cans exposed to light from fluorescent lamps for 10 hours daily. When larvae were exposed to daily electronic photoflashes scheduled 3 to 4 hours after the fluorescent lamp was turned off, pupae failed to diapause. Effective wavelengths are lower than those controlling photoperiodism in plants. The effective energies are about 1 joule per square centimeter.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Circadian Clock in Insect Photoperiodism.
D. S. Saunders (1970)
Science 168, 601-603
   Abstract »    PDF »


ADVERTISEMENT
Click Me!

ADVERTISEMENT
Click Me!

To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)