Pyriproxyfen-Treated Polypropylene Sheets and Resting Boxes for Controlling Mosquitoes in Livestock Operations
Many insect vector species of medical and veterinary importance are found abundantly in areas where animals are held. In these areas, they often rest for a period of time on objects around the animals both before and after blood feeding. However, the use of neurotoxic insecticides for vector control...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-02-01
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| Series: | Insects |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4450/10/2/55 |
| _version_ | 1819207316506935296 |
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| author | Pattarapon Khemrattrakool Jintana Yanola Nongkran Lumjuan Pradya Somboon |
| author_facet | Pattarapon Khemrattrakool Jintana Yanola Nongkran Lumjuan Pradya Somboon |
| author_sort | Pattarapon Khemrattrakool |
| collection | DOAJ |
| description | Many insect vector species of medical and veterinary importance are found abundantly in areas where animals are held. In these areas, they often rest for a period of time on objects around the animals both before and after blood feeding. However, the use of neurotoxic insecticides for vector control is not advised for use in such shelters as these chemicals can pose hazards to animals. The present study evaluated the efficacy of pyriproxyfen (PPF), an insect growth regulator, applied to polypropylene sheets and resting boxes on the reproductivity of mosquitoes found in animal shelters in Chiang Mai, Thailand. The sheets sprayed with 666 mg PPF/m<sup>2</sup> were set on the inner wall of a cowshed and kept in place for 3 h (6.00 to 9.00 pm). During this time, fully blood-fed female mosquitoes that landed and remained continuously on the sheets for 5, 10, and 20 min were collected. The results, involving <i>Anopheles subpictus</i>, <i>An. vagus</i>, <i>Culex gelidus</i>, <i>Cx. tritaeniorhynchus</i>, and <i>Cx. vishnui</i>, revealed significant reductions in oviposition rates, egg hatchability, pupation, and adult emergence in the PPF-treated groups compared to the control groups. Adult emergence rates were reduced to 85.6⁻94.9% and 95.5⁻100% in those exposed for 10 and 20 min, respectively. The sheets retained their effectiveness for three months. The PPF-treated (666 mg/m<sup>2</sup>) resting boxes (35 × 35 × 55 cm) were placed overnight at a chicken farm where <i>Cx. quinquefasciatus</i> predominated. Blood-fed mosquitoes were collected in the morning and reared in the laboratory. Oviposition rates were reduced by 71.7% and adult emergence was reduced by 97.8% compared to the controls. PPF residual spray on surface materials in animal sheds is a potential method for controlling mosquitoes. Further studies are needed to evaluate the impact of PPF-treated materials on wild populations. |
| first_indexed | 2024-12-23T05:21:33Z |
| format | Article |
| id | doaj.art-c26f4765b2fb4b7abcd7862f456d30ce |
| institution | Directory Open Access Journal |
| issn | 2075-4450 |
| language | English |
| last_indexed | 2024-12-23T05:21:33Z |
| publishDate | 2019-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Insects |
| spelling | doaj.art-c26f4765b2fb4b7abcd7862f456d30ce2022-12-21T17:58:42ZengMDPI AGInsects2075-44502019-02-011025510.3390/insects10020055insects10020055Pyriproxyfen-Treated Polypropylene Sheets and Resting Boxes for Controlling Mosquitoes in Livestock OperationsPattarapon Khemrattrakool0Jintana Yanola1Nongkran Lumjuan2Pradya Somboon3Center of Insect Vector Study, Department of Parasitology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, ThailandDepartment of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, ThailandResearch Institute for Health Sciences, Chiang Mai University, Chiang Mai 50200, ThailandCenter of Insect Vector Study, Department of Parasitology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, ThailandMany insect vector species of medical and veterinary importance are found abundantly in areas where animals are held. In these areas, they often rest for a period of time on objects around the animals both before and after blood feeding. However, the use of neurotoxic insecticides for vector control is not advised for use in such shelters as these chemicals can pose hazards to animals. The present study evaluated the efficacy of pyriproxyfen (PPF), an insect growth regulator, applied to polypropylene sheets and resting boxes on the reproductivity of mosquitoes found in animal shelters in Chiang Mai, Thailand. The sheets sprayed with 666 mg PPF/m<sup>2</sup> were set on the inner wall of a cowshed and kept in place for 3 h (6.00 to 9.00 pm). During this time, fully blood-fed female mosquitoes that landed and remained continuously on the sheets for 5, 10, and 20 min were collected. The results, involving <i>Anopheles subpictus</i>, <i>An. vagus</i>, <i>Culex gelidus</i>, <i>Cx. tritaeniorhynchus</i>, and <i>Cx. vishnui</i>, revealed significant reductions in oviposition rates, egg hatchability, pupation, and adult emergence in the PPF-treated groups compared to the control groups. Adult emergence rates were reduced to 85.6⁻94.9% and 95.5⁻100% in those exposed for 10 and 20 min, respectively. The sheets retained their effectiveness for three months. The PPF-treated (666 mg/m<sup>2</sup>) resting boxes (35 × 35 × 55 cm) were placed overnight at a chicken farm where <i>Cx. quinquefasciatus</i> predominated. Blood-fed mosquitoes were collected in the morning and reared in the laboratory. Oviposition rates were reduced by 71.7% and adult emergence was reduced by 97.8% compared to the controls. PPF residual spray on surface materials in animal sheds is a potential method for controlling mosquitoes. Further studies are needed to evaluate the impact of PPF-treated materials on wild populations.https://www.mdpi.com/2075-4450/10/2/55insect growth regulatormosquitoespyriproxyfenresidual sprayresting box |
| spellingShingle | Pattarapon Khemrattrakool Jintana Yanola Nongkran Lumjuan Pradya Somboon Pyriproxyfen-Treated Polypropylene Sheets and Resting Boxes for Controlling Mosquitoes in Livestock Operations Insects insect growth regulator mosquitoes pyriproxyfen residual spray resting box |
| title | Pyriproxyfen-Treated Polypropylene Sheets and Resting Boxes for Controlling Mosquitoes in Livestock Operations |
| title_full | Pyriproxyfen-Treated Polypropylene Sheets and Resting Boxes for Controlling Mosquitoes in Livestock Operations |
| title_fullStr | Pyriproxyfen-Treated Polypropylene Sheets and Resting Boxes for Controlling Mosquitoes in Livestock Operations |
| title_full_unstemmed | Pyriproxyfen-Treated Polypropylene Sheets and Resting Boxes for Controlling Mosquitoes in Livestock Operations |
| title_short | Pyriproxyfen-Treated Polypropylene Sheets and Resting Boxes for Controlling Mosquitoes in Livestock Operations |
| title_sort | pyriproxyfen treated polypropylene sheets and resting boxes for controlling mosquitoes in livestock operations |
| topic | insect growth regulator mosquitoes pyriproxyfen residual spray resting box |
| url | https://www.mdpi.com/2075-4450/10/2/55 |
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