The effects of spinosad insecticide to adults of Apis mellifera, Megachile rotundata and Nomia melanderi (Hymenoptera: Apidae)
The toxicity of spinosad to adult female bees tended to be least to the honey bee (Apis mellifera L.) (LD50 = 0.078 pg/bee), intermediate to the alkali bee (Nomia melanderi) (0.065 pg/bee), and greatest to the alfalfa leafcutter bee (Megachile rotundata (F.)) (0.058 pg/bee), both in topical drop tes...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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University of Debrecen
2001-03-01
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| Series: | International Journal of Horticultural Science |
| Subjects: | |
| Online Access: | https://ojs.lib.unideb.hu/IJHS/article/view/257 |
| _version_ | 1818370027858952192 |
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| author | D. F. Mayer G. Kovács B. L. Brett B. L. Bisabri |
| author_facet | D. F. Mayer G. Kovács B. L. Brett B. L. Bisabri |
| author_sort | D. F. Mayer |
| collection | DOAJ |
| description | The toxicity of spinosad to adult female bees tended to be least to the honey bee (Apis mellifera L.) (LD50 = 0.078 pg/bee), intermediate to the alkali bee (Nomia melanderi) (0.065 pg/bee), and greatest to the alfalfa leafcutter bee (Megachile rotundata (F.)) (0.058 pg/bee), both in topical drop tests and in tests involving spinosad residues on alfalfa (Medicago sativa) foliage. For the calculated LD50 pg/g, the honey bee (LD50 = 0.612 pg/g) was the most susceptible followed by the alkali bee (0.773 pg/g) and the leafcutter bee (1.908 pg/g). The honey bee oral LD50 was 0.063 pg/bee and the calculated LD50 0.492 pg/g. Adding an adjuvant to spinosad sprays did not change the toxicity of spinosad to bees in residue bioassay studies. Spinosad at as high as 500 ppm in feeders containing a sucrose/honey syrup caused no significant reduction in honey bee visitation or total syrup consumed. |
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| id | doaj.art-6fd388fd9df446748de94a3db5aafb7d |
| institution | Directory Open Access Journal |
| issn | 1585-0404 2676-931X |
| language | English |
| last_indexed | 2024-12-13T23:33:13Z |
| publishDate | 2001-03-01 |
| publisher | University of Debrecen |
| record_format | Article |
| series | International Journal of Horticultural Science |
| spelling | doaj.art-6fd388fd9df446748de94a3db5aafb7d2022-12-21T23:27:22ZengUniversity of DebrecenInternational Journal of Horticultural Science1585-04042676-931X2001-03-017110.31421/IJHS/7/1/257The effects of spinosad insecticide to adults of Apis mellifera, Megachile rotundata and Nomia melanderi (Hymenoptera: Apidae)D. F. Mayer0G. Kovács1B. L. Brett2B. L. Bisabri3Department of Entomology Washington State University Irrigated Agricultural Research & Extension Center Prosser, Washington 99350Toxicological Research Centre, HungaryDow AgroSciences, Sacramento CADow AgroSciences, Sacramento CAThe toxicity of spinosad to adult female bees tended to be least to the honey bee (Apis mellifera L.) (LD50 = 0.078 pg/bee), intermediate to the alkali bee (Nomia melanderi) (0.065 pg/bee), and greatest to the alfalfa leafcutter bee (Megachile rotundata (F.)) (0.058 pg/bee), both in topical drop tests and in tests involving spinosad residues on alfalfa (Medicago sativa) foliage. For the calculated LD50 pg/g, the honey bee (LD50 = 0.612 pg/g) was the most susceptible followed by the alkali bee (0.773 pg/g) and the leafcutter bee (1.908 pg/g). The honey bee oral LD50 was 0.063 pg/bee and the calculated LD50 0.492 pg/g. Adding an adjuvant to spinosad sprays did not change the toxicity of spinosad to bees in residue bioassay studies. Spinosad at as high as 500 ppm in feeders containing a sucrose/honey syrup caused no significant reduction in honey bee visitation or total syrup consumed.https://ojs.lib.unideb.hu/IJHS/article/view/257honey beesApis melliferaalkali beeNomia melanderialfalfa leafcutter beeMegachile rotundata |
| spellingShingle | D. F. Mayer G. Kovács B. L. Brett B. L. Bisabri The effects of spinosad insecticide to adults of Apis mellifera, Megachile rotundata and Nomia melanderi (Hymenoptera: Apidae) International Journal of Horticultural Science honey bees Apis mellifera alkali bee Nomia melanderi alfalfa leafcutter bee Megachile rotundata |
| title | The effects of spinosad insecticide to adults of Apis mellifera, Megachile rotundata and Nomia melanderi (Hymenoptera: Apidae) |
| title_full | The effects of spinosad insecticide to adults of Apis mellifera, Megachile rotundata and Nomia melanderi (Hymenoptera: Apidae) |
| title_fullStr | The effects of spinosad insecticide to adults of Apis mellifera, Megachile rotundata and Nomia melanderi (Hymenoptera: Apidae) |
| title_full_unstemmed | The effects of spinosad insecticide to adults of Apis mellifera, Megachile rotundata and Nomia melanderi (Hymenoptera: Apidae) |
| title_short | The effects of spinosad insecticide to adults of Apis mellifera, Megachile rotundata and Nomia melanderi (Hymenoptera: Apidae) |
| title_sort | effects of spinosad insecticide to adults of apis mellifera megachile rotundata and nomia melanderi hymenoptera apidae |
| topic | honey bees Apis mellifera alkali bee Nomia melanderi alfalfa leafcutter bee Megachile rotundata |
| url | https://ojs.lib.unideb.hu/IJHS/article/view/257 |
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