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Oviposition behaviour of the rice hispa Dicladispa armigera (Coleoptera: Chrysomelidae)

Published online by Cambridge University Press:  28 February 2007

L.K. Hazarika ,
M. Deka  and
M. Bhuyan
L.K. Hazarika*
Affiliation:
Department of Entomology, Assam Agricultural University, Jorhat 785 013, Assam, India
M. Deka
Affiliation:
Department of Entomology, Assam Agricultural University, Jorhat 785 013, Assam, India
M. Bhuyan
Affiliation:
Department of Entomology, Assam Agricultural University, Jorhat 785 013, Assam, India
*
*Email: [email protected], or [email protected]
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Abstract

Host searching, slit making, egg deposition and protection are distinct sequences of one event, which lead to oviposition on the lower surface of rice leaves by the rice hispa Dicladispa armigera (Olivier). Females spent an average of 8.05±1.35 min in selecting an oviposition site, 6.40±0.25 min in preparing a triangular slit, and 1.17±0.07 min in laying and protecting a single egg. An egg measuring 0.85×0.42 mm in size was partially inserted inside a slit of 1.95×0.84 mm. The female exhibited ovipositional preference among the leaves of a rice plant, as 67.5% of eggs were deposited in the first leaf. On the first, second and third leaf, the female deposited her eggs mostly in the middle part of the leaf blade, avoiding the area between 4.15–4.89 cm from the tip and 12.72–14.25 cm from the base of the leaf.

Keywords

Dicladispa armigeraoviposition behaviouregg depositionegg protection
Type
Short Communication
Information
International Journal of Tropical Insect Science , Volume 25 , Issue 1 , March 2005 , pp. 50 - 54
Copyright
Copyright © ICIPE 2005

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References

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