Consequences of Asian citrus psyllid intensive insecticide management strategies on Phytoseiid mite assemblages
The Asian citrus psyllid (ACP), Diaphorina citri, is one of two known vectors of huanglongbing (HLB), the most destructive disease in citrus. Vector control is considered a basic component for management of HLB. Insecticidal control is still the most commonly used and recommended approach. However,...
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| Formato: | conferenceObject |
| Lenguaje: | Inglés |
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IOBC/WPRS
2021
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| Acceso en línea: | http://hdl.handle.net/20.500.11939/7003 https://www.iobc-wprs.org/members/shop_en.cfm?mod_Shop_detail_produkte=166 |
| _version_ | 1855032528888397824 |
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| author | Monzó, César Stansly, Philip A. |
| author2 | Broufas, George |
| author_browse | Broufas, George Monzó, César Stansly, Philip A. |
| author_facet | Broufas, George Monzó, César Stansly, Philip A. |
| author_sort | Monzó, César |
| collection | ReDivia |
| description | The Asian citrus psyllid (ACP), Diaphorina citri, is one of two known vectors of huanglongbing (HLB), the most destructive disease in citrus. Vector control is considered a basic component for management of HLB. Insecticidal control is still the most commonly used and recommended approach. However, intensive insecticide programs often result in important biological control disruptions. Florida citrus was known to harbor a rich and abundant phytoseiid community before HLB detection in 2005. Ours is the first study that aims to assess effects of recent intensive insecticide programs on these assemblages. Two 3-year experiments were conducted in commercial orange blocks. Three different insecticide ACP management regimens were evaluated and compared to an untreated control in a large scale randomized complete block design with 4 treatments and 4 replicates. Phytoseiid mites assemblages were sampled monthly and adult specimens were determined to species. Effects of specific active ingredients on specific phytoseiid species and on the whole assemblage were tested by comparing numbers before and after each application in treated and untreated plots. Insecticide programs had an overall negative impact on these assemblages by affecting abundance (51.1% reduction) and species richness (35.7% reduction). These effects were nevertheless not reflected in important changes on Shannon diversity index (1.04 ± 0.11 and 0.97 ± 0.05 in untreated and plots under an intensive insecticide program, respectively). While most species were negatively affected by insecticides, some increased after the treatments. These results indicate that insecticide impacts under field conditions were partially determined by complex competitive interactions within the assemblage. |
| format | conferenceObject |
| id | ReDivia7003 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | IOBC/WPRS |
| publisherStr | IOBC/WPRS |
| record_format | dspace |
| spelling | ReDivia70032025-04-25T14:53:31Z Consequences of Asian citrus psyllid intensive insecticide management strategies on Phytoseiid mite assemblages Monzó, César Stansly, Philip A. Broufas, George Huanglongbing Insecticide management H10 Pests of plants Diaphorina citri Citrus The Asian citrus psyllid (ACP), Diaphorina citri, is one of two known vectors of huanglongbing (HLB), the most destructive disease in citrus. Vector control is considered a basic component for management of HLB. Insecticidal control is still the most commonly used and recommended approach. However, intensive insecticide programs often result in important biological control disruptions. Florida citrus was known to harbor a rich and abundant phytoseiid community before HLB detection in 2005. Ours is the first study that aims to assess effects of recent intensive insecticide programs on these assemblages. Two 3-year experiments were conducted in commercial orange blocks. Three different insecticide ACP management regimens were evaluated and compared to an untreated control in a large scale randomized complete block design with 4 treatments and 4 replicates. Phytoseiid mites assemblages were sampled monthly and adult specimens were determined to species. Effects of specific active ingredients on specific phytoseiid species and on the whole assemblage were tested by comparing numbers before and after each application in treated and untreated plots. Insecticide programs had an overall negative impact on these assemblages by affecting abundance (51.1% reduction) and species richness (35.7% reduction). These effects were nevertheless not reflected in important changes on Shannon diversity index (1.04 ± 0.11 and 0.97 ± 0.05 in untreated and plots under an intensive insecticide program, respectively). While most species were negatively affected by insecticides, some increased after the treatments. These results indicate that insecticide impacts under field conditions were partially determined by complex competitive interactions within the assemblage. 2021-01-19T16:29:54Z 2021-01-19T16:29:54Z 2016 conferenceObject Monzó, C. & Stansly, P. A. Consequences of Asian citrus psyllid intensive insecticide management strategies on Phytoseiid mite assemblages. In: Broufas, G. (Ed.), Proceedings of the 5th Working Group Meeting-Integrated Control of Plant-Feeding Mites, IOBC-WPRS Bulletin Vol. 120, 32-35. IOBC-WPRS. 978-92-9067-304-0 http://hdl.handle.net/20.500.11939/7003 https://www.iobc-wprs.org/members/shop_en.cfm?mod_Shop_detail_produkte=166 en 2015-09-07 5th Working Group Meeting-Integrated Control of Plant-Feeding Mites Castellón de la Plana, Spain. Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ closedAccess IOBC/WPRS electronico |
| spellingShingle | Huanglongbing Insecticide management H10 Pests of plants Diaphorina citri Citrus Monzó, César Stansly, Philip A. Consequences of Asian citrus psyllid intensive insecticide management strategies on Phytoseiid mite assemblages |
| title | Consequences of Asian citrus psyllid intensive insecticide management strategies on Phytoseiid mite assemblages |
| title_full | Consequences of Asian citrus psyllid intensive insecticide management strategies on Phytoseiid mite assemblages |
| title_fullStr | Consequences of Asian citrus psyllid intensive insecticide management strategies on Phytoseiid mite assemblages |
| title_full_unstemmed | Consequences of Asian citrus psyllid intensive insecticide management strategies on Phytoseiid mite assemblages |
| title_short | Consequences of Asian citrus psyllid intensive insecticide management strategies on Phytoseiid mite assemblages |
| title_sort | consequences of asian citrus psyllid intensive insecticide management strategies on phytoseiid mite assemblages |
| topic | Huanglongbing Insecticide management H10 Pests of plants Diaphorina citri Citrus |
| url | http://hdl.handle.net/20.500.11939/7003 https://www.iobc-wprs.org/members/shop_en.cfm?mod_Shop_detail_produkte=166 |
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