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The effect of light on the oviposition rhythm of the tea red spider mite Oligonychus coffeae (Nietn.)

Published online by Cambridge University Press:  10 July 2009

Barundeb Banerjee
Affiliation:
Tea Research Association, Tocklai Experimental Station, Jorhat 8, Assam, India
Subhas Chandra Das
Affiliation:
Tea Research Association, Tocklai Experimental Station, Jorhat 8, Assam, India

Extract

The daily oviposition rhythm of the tea red spider mite, Oligonychus coffeae (Nietn.) under laboratory and field conditions is described. In the laboratory, the oviposition rate was steady under constant light or darkness, but under alternating light and darkness (LD 12:12 and 8:16) showed peaks soon after the change from light to darkness and vice versa. Under field conditions, oviposition peaks occurred at dawn and at dusk when there is a rapid change in light intensity.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1969

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