Ornamental Plant and Weed Response to Oxyfluorfen Plus Prodiamine
Ornamental plant and weed response to oxyfluorfen + prodiamine herbicide was evaluated in Connecticut and Tennessee, USA, in 2017 and 2018. Preemergence application of oxyfluorfen + prodiamine was made at 0 lb/acre, 2 + 0.75 lb/acre, 4 + 1.5 lb/acre, and 8 + 3 lb/acre to container-grown ornamental p...
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| Format: | Article |
| Language: | English |
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American Society for Horticultural Science (ASHS)
2024-04-01
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| Series: | HortTechnology |
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| Online Access: | https://journals.ashs.org/horttech/view/journals/horttech/34/3/article-p227.xml |
| _version_ | 1827262914668527616 |
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| author | Jatinder S. Aulakh Anthony Witcher Vipan Kumar |
| author_facet | Jatinder S. Aulakh Anthony Witcher Vipan Kumar |
| author_sort | Jatinder S. Aulakh |
| collection | DOAJ |
| description | Ornamental plant and weed response to oxyfluorfen + prodiamine herbicide was evaluated in Connecticut and Tennessee, USA, in 2017 and 2018. Preemergence application of oxyfluorfen + prodiamine was made at 0 lb/acre, 2 + 0.75 lb/acre, 4 + 1.5 lb/acre, and 8 + 3 lb/acre to container-grown ornamental plants on an outdoor gravel pad and weeds in greenhouse experiments. Ornamental plants were treated first within a week after transplanting and again 6 weeks after the first treatment. Asiatic jasmine (Trachelospermum asiaticum), candlestick plant (Senna alata), and English ivy (Hedera helix) in Tennessee, USA; and ‘Blue Flag’ iris (Iris sp.), ‘Firecracker’ gladiolus (Gladiolus sp.), and ‘Green Carpet’ Japanese pachysandra (Pachysandra terminalis) in Connecticut, USA, were not injured with oxyfluorfen + prodiamine regardless of rate applied. Lily-of-the-Nile (Agapanthus africanus) in Tennessee, USA, and ‘Bowles’ periwinkle (Vinca minor) in Connecticut, USA, showed minor but commercially acceptable growth reduction with oxyfluorfen + prodiamine up to 4 + 1.5 lb/acre. Shasta daisy (Leucanthemum ×superbum) in Connecticut, USA, was the most sensitive ornamental plant. After the first application, average necrotic injury to Shasta daisy varied from 24% with 2 + 0.75 lb/acre to 31% with 8 + 3 lb/acre of oxyfluorfen + prodiamine. After the second application, necrotic injury was ≤ 5% with all oxyfluorfen + prodiamine rates tested and was commercially acceptable (≤ 20%). Oxyfluorfen + prodiamine reduced densities of creeping woodsorrel (Oxalis corniculata), hairy bittercress (Cardamine hirsuta), giant foxtail (Setaria faberi), and large crabgrass (Digitaria sanguinalis) ≥ 80% by 4 weeks after treatment. The fresh weed biomass 6 weeks after treatment indicated an 88% to 99% reduction compared with the untreated control. |
| first_indexed | 2024-04-24T08:40:46Z |
| format | Article |
| id | doaj.art-2211d51d4c4d4e869c46c88103853746 |
| institution | Directory Open Access Journal |
| issn | 1943-7714 |
| language | English |
| last_indexed | 2025-03-22T03:21:51Z |
| publishDate | 2024-04-01 |
| publisher | American Society for Horticultural Science (ASHS) |
| record_format | Article |
| series | HortTechnology |
| spelling | doaj.art-2211d51d4c4d4e869c46c881038537462024-04-29T17:08:18ZengAmerican Society for Horticultural Science (ASHS)HortTechnology1943-77142024-04-01343https://doi.org/10.21273/HORTTECH05372-23Ornamental Plant and Weed Response to Oxyfluorfen Plus ProdiamineJatinder S. Aulakh0Anthony Witcher1Vipan Kumar2Windsor Valley Laboratory, Connecticut Agricultural Experiment StationOtis L. Floyd Nursery Research Center, College of Agriculture, Tennessee State UniversitySoil and Crop Sciences Section, School of Integrative Plant Science, Cornell UniversityOrnamental plant and weed response to oxyfluorfen + prodiamine herbicide was evaluated in Connecticut and Tennessee, USA, in 2017 and 2018. Preemergence application of oxyfluorfen + prodiamine was made at 0 lb/acre, 2 + 0.75 lb/acre, 4 + 1.5 lb/acre, and 8 + 3 lb/acre to container-grown ornamental plants on an outdoor gravel pad and weeds in greenhouse experiments. Ornamental plants were treated first within a week after transplanting and again 6 weeks after the first treatment. Asiatic jasmine (Trachelospermum asiaticum), candlestick plant (Senna alata), and English ivy (Hedera helix) in Tennessee, USA; and ‘Blue Flag’ iris (Iris sp.), ‘Firecracker’ gladiolus (Gladiolus sp.), and ‘Green Carpet’ Japanese pachysandra (Pachysandra terminalis) in Connecticut, USA, were not injured with oxyfluorfen + prodiamine regardless of rate applied. Lily-of-the-Nile (Agapanthus africanus) in Tennessee, USA, and ‘Bowles’ periwinkle (Vinca minor) in Connecticut, USA, showed minor but commercially acceptable growth reduction with oxyfluorfen + prodiamine up to 4 + 1.5 lb/acre. Shasta daisy (Leucanthemum ×superbum) in Connecticut, USA, was the most sensitive ornamental plant. After the first application, average necrotic injury to Shasta daisy varied from 24% with 2 + 0.75 lb/acre to 31% with 8 + 3 lb/acre of oxyfluorfen + prodiamine. After the second application, necrotic injury was ≤ 5% with all oxyfluorfen + prodiamine rates tested and was commercially acceptable (≤ 20%). Oxyfluorfen + prodiamine reduced densities of creeping woodsorrel (Oxalis corniculata), hairy bittercress (Cardamine hirsuta), giant foxtail (Setaria faberi), and large crabgrass (Digitaria sanguinalis) ≥ 80% by 4 weeks after treatment. The fresh weed biomass 6 weeks after treatment indicated an 88% to 99% reduction compared with the untreated control.https://journals.ashs.org/horttech/view/journals/horttech/34/3/article-p227.xmlcontainer-grown ornamentalsherbicide efficacypreemergenceweed management |
| spellingShingle | Jatinder S. Aulakh Anthony Witcher Vipan Kumar Ornamental Plant and Weed Response to Oxyfluorfen Plus Prodiamine HortTechnology container-grown ornamentals herbicide efficacy preemergence weed management |
| title | Ornamental Plant and Weed Response to Oxyfluorfen Plus Prodiamine |
| title_full | Ornamental Plant and Weed Response to Oxyfluorfen Plus Prodiamine |
| title_fullStr | Ornamental Plant and Weed Response to Oxyfluorfen Plus Prodiamine |
| title_full_unstemmed | Ornamental Plant and Weed Response to Oxyfluorfen Plus Prodiamine |
| title_short | Ornamental Plant and Weed Response to Oxyfluorfen Plus Prodiamine |
| title_sort | ornamental plant and weed response to oxyfluorfen plus prodiamine |
| topic | container-grown ornamentals herbicide efficacy preemergence weed management |
| url | https://journals.ashs.org/horttech/view/journals/horttech/34/3/article-p227.xml |
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