Host Preference and Survival of the Dark-Headed Rice Stem Borer Chilotraea polychrysa(Meyr.) in Malaya

Kok, L.T. (1968) Host Preference and Survival of the Dark-Headed Rice Stem Borer Chilotraea polychrysa(Meyr.) in Malaya. Experimental Agriculture, 4 (3). pp. 235-241. ISSN 0014-4797

Full text not available from this repository.
Official URL: https://doi.org/10.1017/S0014479700004245

Abstract

The polyphagous nature of the dark-headed rice stem borer, Chilotraea polychrysa (Meyr.), may contribute greatly to its ability to survive periods of food shortage when rice plants are scarce. Investigations on the preference and survival of C. polychrysa on seven selected hosts belonging to the Gramineae revealed that it oviposited on all the hosts tested, but showed a marked preference for its normal host, rice (Oryza sativa). Survival rates on rice and the alternate hosts did not differ significantly. The percentage of larvae surviving to the adult stage was generally low because of the high rate of mortality from larval to pupal stage, irrespective of host species. In rice, there was distinct ovipositional preference for plants at the maximum vegetative stage rather than for younger plants. The larval survival rate increased with the age of the host from 35 to 65 days, but dropped sharply when infestation occurred on plants 80 days old, by which time the inflorescence is beginning to emerge. © 1968, Cambridge University Press. All rights reserved.

Item Type: Article
Additional Information: Kok, L.T. University of Malaya, Kuala Lumpur, Malaysia.
Uncontrolled Keywords: Host preference; survival; Dark-Headed rice stem borer; chilotraea polychrysa(Meyr.); Malaya
Subjects: S Agriculture > S Agriculture (General)
Divisions: Faculty of Science
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 02 Nov 2020 02:29
Last Modified: 02 Nov 2020 02:29
URI: http://eprints.um.edu.my/id/eprint/25602

Actions (login required)

View Item View Item