Daytime Solar Heating Controls Downy Mildew Peronospora belbahrii in Sweet Basil.
The biotrophic oomycete Peronospora belbahrii causes a devastating downy mildew disease in sweet basil. Due to the lack of resistant cultivars current control measures rely heavily on fungicides. However, resistance to fungicides and strict regulation on their deployment greatly restrict their use....
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2015-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC4439122?pdf=render |
| _version_ | 1818303363243048960 |
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| author | Yigal Cohen Avia E Rubin |
| author_facet | Yigal Cohen Avia E Rubin |
| author_sort | Yigal Cohen |
| collection | DOAJ |
| description | The biotrophic oomycete Peronospora belbahrii causes a devastating downy mildew disease in sweet basil. Due to the lack of resistant cultivars current control measures rely heavily on fungicides. However, resistance to fungicides and strict regulation on their deployment greatly restrict their use. Here we report on a 'green' method to control this disease. Growth chamber studies showed that P. belbahrii could hardly withstand exposure to high temperatures; exposure of spores, infected leaves, or infected plants to 35-45 °C for 6-9 hours suppressed its survival. Therefore, daytime solar heating was employed in the field to control the downy mildew disease it causes in basil. Covering growth houses of sweet basil already infected with downy mildew with transparent infra-red-impermeable, transparent polyethylene sheets raised the daily maximal temperature during sunny hours by 11-22 °C reaching 40-58 °C (greenhouse effect). Such coverage, applied for a few hours during 1-3 consecutive days, had a detrimental effect on the survival of P. belbahrii: killing the pathogen and/or suppressing disease progress while enhancing growth of the host basil plants. |
| first_indexed | 2024-12-13T05:53:36Z |
| format | Article |
| id | doaj.art-03e37f2130ce4147bf173fe60f7d971b |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-13T05:53:36Z |
| publishDate | 2015-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-03e37f2130ce4147bf173fe60f7d971b2022-12-21T23:57:28ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-01105e012610310.1371/journal.pone.0126103Daytime Solar Heating Controls Downy Mildew Peronospora belbahrii in Sweet Basil.Yigal CohenAvia E RubinThe biotrophic oomycete Peronospora belbahrii causes a devastating downy mildew disease in sweet basil. Due to the lack of resistant cultivars current control measures rely heavily on fungicides. However, resistance to fungicides and strict regulation on their deployment greatly restrict their use. Here we report on a 'green' method to control this disease. Growth chamber studies showed that P. belbahrii could hardly withstand exposure to high temperatures; exposure of spores, infected leaves, or infected plants to 35-45 °C for 6-9 hours suppressed its survival. Therefore, daytime solar heating was employed in the field to control the downy mildew disease it causes in basil. Covering growth houses of sweet basil already infected with downy mildew with transparent infra-red-impermeable, transparent polyethylene sheets raised the daily maximal temperature during sunny hours by 11-22 °C reaching 40-58 °C (greenhouse effect). Such coverage, applied for a few hours during 1-3 consecutive days, had a detrimental effect on the survival of P. belbahrii: killing the pathogen and/or suppressing disease progress while enhancing growth of the host basil plants.http://europepmc.org/articles/PMC4439122?pdf=render |
| spellingShingle | Yigal Cohen Avia E Rubin Daytime Solar Heating Controls Downy Mildew Peronospora belbahrii in Sweet Basil. PLoS ONE |
| title | Daytime Solar Heating Controls Downy Mildew Peronospora belbahrii in Sweet Basil. |
| title_full | Daytime Solar Heating Controls Downy Mildew Peronospora belbahrii in Sweet Basil. |
| title_fullStr | Daytime Solar Heating Controls Downy Mildew Peronospora belbahrii in Sweet Basil. |
| title_full_unstemmed | Daytime Solar Heating Controls Downy Mildew Peronospora belbahrii in Sweet Basil. |
| title_short | Daytime Solar Heating Controls Downy Mildew Peronospora belbahrii in Sweet Basil. |
| title_sort | daytime solar heating controls downy mildew peronospora belbahrii in sweet basil |
| url | http://europepmc.org/articles/PMC4439122?pdf=render |
| work_keys_str_mv | AT yigalcohen daytimesolarheatingcontrolsdownymildewperonosporabelbahriiinsweetbasil AT aviaerubin daytimesolarheatingcontrolsdownymildewperonosporabelbahriiinsweetbasil |