Protecting Apricot Orchards with Rain Shelters Reduces Twig Blight Damage Caused by <i>Monilinia</i> spp. and Makes It Possible to Reduce Fungicide Use
Blossom and twig blight, caused by <i>Monilinia</i> spp., is the main disease in apricot trees. In this study, we installed transparent rain shelters in apricot orchards to study their influence on the modification of the microclimate at the level of the tree canopy and on the reduction...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/13/5/1338 |
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| author | Laurent Brun Freddy Combe Christophe Gros Pascal Walser Marc Saudreau |
| author_facet | Laurent Brun Freddy Combe Christophe Gros Pascal Walser Marc Saudreau |
| author_sort | Laurent Brun |
| collection | DOAJ |
| description | Blossom and twig blight, caused by <i>Monilinia</i> spp., is the main disease in apricot trees. In this study, we installed transparent rain shelters in apricot orchards to study their influence on the modification of the microclimate at the level of the tree canopy and on the reduction in moniliosis damage in twigs. Rain shelters significantly reduced the leaf wetness time measured within the foliage compared to the unsheltered trees (a reduction of between 43% and 67%). However, very few differences were observed in the daily averaged air temperature (up to 6%) and daily averaged air relative humidity (up to 1%). In the first experiment, on the apricot variety Bergarouge<sup>®</sup> (CEP Innovation, Lyon, France), moniliosis damage on twigs in the absence of phytosanitary protection was reduced by up to 62% for the trees provided with rain protection compared to the trees that did not receive rain shelters. A second experiment, involving five apricot tree varieties, made it possible to verify that fungicide protection could be reduced for the trees protected by rain covers, reducing moniliosis damage on twigs compared to full fungicide protection combined without rain protection. Finally, a third experiment comprising two apricot tree varieties has shown that in organic orchards, rain protection provides protection against moniliosis (twig blight) that is equivalent to an organic farming fungicide protection programme based on the use of copper sulphate and calcium polysulphide. |
| first_indexed | 2024-03-11T04:01:39Z |
| format | Article |
| id | doaj.art-87882eec2bdc4d9cb70e8edced0c2a14 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-11T04:01:39Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-87882eec2bdc4d9cb70e8edced0c2a142023-11-18T00:06:46ZengMDPI AGAgronomy2073-43952023-05-01135133810.3390/agronomy13051338Protecting Apricot Orchards with Rain Shelters Reduces Twig Blight Damage Caused by <i>Monilinia</i> spp. and Makes It Possible to Reduce Fungicide UseLaurent Brun0Freddy Combe1Christophe Gros2Pascal Walser3Marc Saudreau4INRAE, UERI, 460 Chemin de Gotheron, 26320 Saint-Marcel-lès-Valence, FranceINRAE, UERI, 460 Chemin de Gotheron, 26320 Saint-Marcel-lès-Valence, FranceINRAE, UERI, 460 Chemin de Gotheron, 26320 Saint-Marcel-lès-Valence, FranceINRAE, Université Clermont Auvergne, UMR 547 PIAF, 63178 Aubière, FranceINRAE, Université Clermont Auvergne, UMR 547 PIAF, 63178 Aubière, FranceBlossom and twig blight, caused by <i>Monilinia</i> spp., is the main disease in apricot trees. In this study, we installed transparent rain shelters in apricot orchards to study their influence on the modification of the microclimate at the level of the tree canopy and on the reduction in moniliosis damage in twigs. Rain shelters significantly reduced the leaf wetness time measured within the foliage compared to the unsheltered trees (a reduction of between 43% and 67%). However, very few differences were observed in the daily averaged air temperature (up to 6%) and daily averaged air relative humidity (up to 1%). In the first experiment, on the apricot variety Bergarouge<sup>®</sup> (CEP Innovation, Lyon, France), moniliosis damage on twigs in the absence of phytosanitary protection was reduced by up to 62% for the trees provided with rain protection compared to the trees that did not receive rain shelters. A second experiment, involving five apricot tree varieties, made it possible to verify that fungicide protection could be reduced for the trees protected by rain covers, reducing moniliosis damage on twigs compared to full fungicide protection combined without rain protection. Finally, a third experiment comprising two apricot tree varieties has shown that in organic orchards, rain protection provides protection against moniliosis (twig blight) that is equivalent to an organic farming fungicide protection programme based on the use of copper sulphate and calcium polysulphide.https://www.mdpi.com/2073-4395/13/5/1338blossom blighttwig blight<i>Monilinia</i> spp.apricotrain sheltersleaf wetness duration |
| spellingShingle | Laurent Brun Freddy Combe Christophe Gros Pascal Walser Marc Saudreau Protecting Apricot Orchards with Rain Shelters Reduces Twig Blight Damage Caused by <i>Monilinia</i> spp. and Makes It Possible to Reduce Fungicide Use Agronomy blossom blight twig blight <i>Monilinia</i> spp. apricot rain shelters leaf wetness duration |
| title | Protecting Apricot Orchards with Rain Shelters Reduces Twig Blight Damage Caused by <i>Monilinia</i> spp. and Makes It Possible to Reduce Fungicide Use |
| title_full | Protecting Apricot Orchards with Rain Shelters Reduces Twig Blight Damage Caused by <i>Monilinia</i> spp. and Makes It Possible to Reduce Fungicide Use |
| title_fullStr | Protecting Apricot Orchards with Rain Shelters Reduces Twig Blight Damage Caused by <i>Monilinia</i> spp. and Makes It Possible to Reduce Fungicide Use |
| title_full_unstemmed | Protecting Apricot Orchards with Rain Shelters Reduces Twig Blight Damage Caused by <i>Monilinia</i> spp. and Makes It Possible to Reduce Fungicide Use |
| title_short | Protecting Apricot Orchards with Rain Shelters Reduces Twig Blight Damage Caused by <i>Monilinia</i> spp. and Makes It Possible to Reduce Fungicide Use |
| title_sort | protecting apricot orchards with rain shelters reduces twig blight damage caused by i monilinia i spp and makes it possible to reduce fungicide use |
| topic | blossom blight twig blight <i>Monilinia</i> spp. apricot rain shelters leaf wetness duration |
| url | https://www.mdpi.com/2073-4395/13/5/1338 |
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