ISSN 2285-5785, ISSN CD-ROM 2285-5793, ISSN ONLINE 2285-5807, ISSN-L 2285-5785

EFFECT OF LOW TEMPERATURE ON DIAPAUSE EGGS OF Dysdercus cingulatus (Hemiptera: Pyrrhocoridae)

Published in Scientific Papers. Series A. Agronomy, Vol. LXI, Issue 1
Written by Shahjahan SHAIKH

Dysdercus cingulatus (Red cotton bugs) is the most damaging pest of cotton in India and many parts of Asia which reduces yield of cotton. Observing the damage caused to crop the present study designed to know the insect’s diapause in relation with abiotic factors. It deals with the diapause termination in eggs of D. cingulatus, when the eggs were incubated at 5ºC for number of days and then transferred to optimal temperature (25ºC), the percentage of hatching decreases as the day increase. Thus temperature play an important role in diapause induction and termination.

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