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Persistence of insecticides against larvae of Plutella xylostella (L.)


Citation

Mohamad, Rosli and Ismail, Mohd. Yunus (1988) Persistence of insecticides against larvae of Plutella xylostella (L.). International Journal of Tropical Insect Science, 9 (1). pp. 109-112. ISSN 1742-7584; ESSN: 1742-7592

Abstract / Synopsis

Persistence of four insecticides (prothiofos, Bacillus thuringiensis Berliner, fenveralate and methamidophos) were evaluated against the larvae of Plutella xylostella (L.), under field conditions. The effective biological action of the chemicals against the larvae varied with different instars. The insecticides were biologically effective for 6 to 8 days after treatment against first and second instars, and their index of persistent toxicity was higher than that for third and fourth instars. They were effective against third and fourth instars only for one day after spraying. Prothiofos and B. thuringiensis were more toxic to all the instars than methamidophos or fenveralate


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Additional Metadata

Item Type: Article
Divisions: Universiti Pertanian Malaysia
Faculty of Agriculture
Publisher: Cambridge University Press
Keywords: Persistence; Plutella xylostella (L.); Methamidophos; Fenveralate; Prothiofos; Bacillus thuringiensis Berliner
Depositing User: Azhar Abdul Rahman
Date Deposited: 11 Aug 2015 11:16
Last Modified: 11 Aug 2015 11:16
URI: http://psasir.upm.edu.my/id/eprint/39534
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