Persistence of insecticides against larvae of Plutella xylostella (L.)
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...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Cambridge University Press
1988
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| Online Access: | http://psasir.upm.edu.my/id/eprint/39534/ http://psasir.upm.edu.my/id/eprint/39534/1/19%20-%20persistence%20of%20insecticides%20againt%20larvae%20of%20plutella%20xylostella%20%28L.%29.pdf |
| _version_ | 1848849169004888064 |
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| author | Mohamad, Rosli Ismail, Mohd. Yunus |
| author_facet | Mohamad, Rosli Ismail, Mohd. Yunus |
| author_sort | Mohamad, Rosli |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | 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 |
| first_indexed | 2025-11-15T09:46:07Z |
| format | Article |
| id | upm-39534 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:46:07Z |
| publishDate | 1988 |
| publisher | Cambridge University Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-395342015-08-11T03:16:21Z http://psasir.upm.edu.my/id/eprint/39534/ Persistence of insecticides against larvae of Plutella xylostella (L.) Mohamad, Rosli Ismail, Mohd. Yunus 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 Cambridge University Press 1988-02 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/39534/1/19%20-%20persistence%20of%20insecticides%20againt%20larvae%20of%20plutella%20xylostella%20%28L.%29.pdf 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 |
| spellingShingle | Mohamad, Rosli Ismail, Mohd. Yunus Persistence of insecticides against larvae of Plutella xylostella (L.) |
| title | Persistence of insecticides against larvae of Plutella xylostella (L.) |
| title_full | Persistence of insecticides against larvae of Plutella xylostella (L.) |
| title_fullStr | Persistence of insecticides against larvae of Plutella xylostella (L.) |
| title_full_unstemmed | Persistence of insecticides against larvae of Plutella xylostella (L.) |
| title_short | Persistence of insecticides against larvae of Plutella xylostella (L.) |
| title_sort | persistence of insecticides against larvae of plutella xylostella (l.) |
| url | http://psasir.upm.edu.my/id/eprint/39534/ http://psasir.upm.edu.my/id/eprint/39534/1/19%20-%20persistence%20of%20insecticides%20againt%20larvae%20of%20plutella%20xylostella%20%28L.%29.pdf |