Effect of adding mineral oil to the effectiveness of Permethrin Emulsion spray droplets on plutella xylostella larvae
The effectiveness of permethrin emulsion spray droplets with (10% v/v) and without mineral oil was evaluated in the laboratory by bioassay using larvae ofPlutella xylostella. A microtip nozzle was used to produce spray droplets ranging from 52 - 274 ~m in volume median diameter. The 2nd instar lar...
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| Format: | Article |
| Language: | English |
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Universiti Putra Malaysia Press
1993
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| Online Access: | http://psasir.upm.edu.my/id/eprint/3102/1/Effect_of_Adding_Mineral_Oil_to_the_Effectiveness_of.pdf |
| _version_ | 1825921592703582208 |
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| author | Omar, Dzolkhifli |
| author_facet | Omar, Dzolkhifli |
| author_sort | Omar, Dzolkhifli |
| collection | UPM |
| description | The effectiveness of permethrin emulsion spray droplets with (10% v/v) and without mineral oil was evaluated in
the laboratory by bioassay using larvae ofPlutella xylostella. A microtip nozzle was used to produce spray droplets
ranging from 52 - 274 ~m in volume median diameter. The 2nd instar larvae were placed on treated leaf discs,
and knockdown and mortality were recorded after 1 hand 24 h respectively. In both treatments, as droplet size
decreased the dose also decreased without losing the effectiveness ofpermethrin indicating that small droplets were more
ejjicient than large droplets. VVhen sprayed using droplet size between 70 ~m to 100 ~m, there was no increase in
the effectiveness ofpermethrin from emulsion spray droplets plus mineral oil compared to emulsion spray droplets alone.
However, for droplet sizes greater than 125 ~m, the effectiveness was reduced. |
| first_indexed | 2024-03-06T07:00:09Z |
| format | Article |
| id | upm.eprints-3102 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T07:00:09Z |
| publishDate | 1993 |
| publisher | Universiti Putra Malaysia Press |
| record_format | dspace |
| spelling | upm.eprints-31022019-12-09T08:24:34Z http://psasir.upm.edu.my/id/eprint/3102/ Effect of adding mineral oil to the effectiveness of Permethrin Emulsion spray droplets on plutella xylostella larvae Omar, Dzolkhifli The effectiveness of permethrin emulsion spray droplets with (10% v/v) and without mineral oil was evaluated in the laboratory by bioassay using larvae ofPlutella xylostella. A microtip nozzle was used to produce spray droplets ranging from 52 - 274 ~m in volume median diameter. The 2nd instar larvae were placed on treated leaf discs, and knockdown and mortality were recorded after 1 hand 24 h respectively. In both treatments, as droplet size decreased the dose also decreased without losing the effectiveness ofpermethrin indicating that small droplets were more ejjicient than large droplets. VVhen sprayed using droplet size between 70 ~m to 100 ~m, there was no increase in the effectiveness ofpermethrin from emulsion spray droplets plus mineral oil compared to emulsion spray droplets alone. However, for droplet sizes greater than 125 ~m, the effectiveness was reduced. Universiti Putra Malaysia Press 1993 Article NonPeerReviewed text en http://psasir.upm.edu.my/id/eprint/3102/1/Effect_of_Adding_Mineral_Oil_to_the_Effectiveness_of.pdf Omar, Dzolkhifli (1993) Effect of adding mineral oil to the effectiveness of Permethrin Emulsion spray droplets on plutella xylostella larvae. Pertanika Journal of Tropical Agricultural Science, 16 (1). pp. 41-44. ISSN 0126-6128 http://www.pertanika.upm.edu.my/Pertanika%20PAPERS/JTAS%20Vol.%2016%20(1)%20Apr.%201993/08%20JTAS%20Vol.16%20(1)%201993%20(Pg%2041-44).pdf |
| spellingShingle | Omar, Dzolkhifli Effect of adding mineral oil to the effectiveness of Permethrin Emulsion spray droplets on plutella xylostella larvae |
| title | Effect of adding mineral oil to the effectiveness of Permethrin Emulsion spray droplets on plutella xylostella larvae |
| title_full | Effect of adding mineral oil to the effectiveness of Permethrin Emulsion spray droplets on plutella xylostella larvae |
| title_fullStr | Effect of adding mineral oil to the effectiveness of Permethrin Emulsion spray droplets on plutella xylostella larvae |
| title_full_unstemmed | Effect of adding mineral oil to the effectiveness of Permethrin Emulsion spray droplets on plutella xylostella larvae |
| title_short | Effect of adding mineral oil to the effectiveness of Permethrin Emulsion spray droplets on plutella xylostella larvae |
| title_sort | effect of adding mineral oil to the effectiveness of permethrin emulsion spray droplets on plutella xylostella larvae |
| url | http://psasir.upm.edu.my/id/eprint/3102/1/Effect_of_Adding_Mineral_Oil_to_the_Effectiveness_of.pdf |
| work_keys_str_mv | AT omardzolkhifli effectofaddingmineraloiltotheeffectivenessofpermethrinemulsionspraydropletsonplutellaxylostellalarvae |