ECOLOGY OF DIAMONDBACK MOTH, Plutella xylostella L. (LEPIDOPTERA: YPONOMEUTIDAE) ON MUSTARD (Brassica juncea COSS) IN LOWLAND AREA OF SOUTH SUMATERA

Herlinda, Siti (2003) ECOLOGY OF DIAMONDBACK MOTH, Plutella xylostella L. (LEPIDOPTERA: YPONOMEUTIDAE) ON MUSTARD (Brassica juncea COSS) IN LOWLAND AREA OF SOUTH SUMATERA. Proceedings of an International Seminar & Exhibition on Prospectives of Lowland Development in Indonesia.

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    Abstract

    Surveys during February up to November 2003 at Kenten, Sukarami, and Talang Buruk, South Sumatera were conducted to determine population and damage by the DBM on mustard, to identify its parasitoid species, and to evaluate parasitism by the parasitoids. The larval-infested leaves and its population were recorded every 3-4 days. The eggs, and the 3rd and 4th instars or pupae were collected weekly from mustard (Brassica juncea Coss.) for recording the level of the parasitism. Among three locations, the highest population was found at Sukarami (0.40 larvae per plant). The larval population was associated with crop age. The population increased with the increasing the crop age. The damage by DBM was higher on mustard at Sukarami (15.55%) and Talang Buruk (15.77%) than at Kenten (11.78%). The mustard leaf damage was up to 38.54% at Talang Buruk. We found two species of hymenopteran parasitoids associated with the eggs, and the 3rd and 4th instars or pupae. The parasitoids found were Trichogramma sp., and Cotesia sp. Rates of the parasitism by the egg parasitoid reached 8.33%. The most common larval parasitoid found was Cotesia sp., and its parasitism reached 80.95.

    Item Type: Article
    Uncontrolled Keywords: Population, damage, parasitoids, diamondback moth, and South Sumatera
    Subjects: S Agriculture > S Agriculture (General)
    S Agriculture > SB Plant culture
    Divisions: Faculty of Agriculture > Department of Plant Pests and Diseases
    Depositing User: Candra Setiawan
    Date Deposited: 22 Jan 2012 03:24
    Last Modified: 22 Jan 2012 03:24
    URI: http://eprints.unsri.ac.id/id/eprint/233

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