Effectiveness of active ingredients in controlling fireblight (Erwinia amylovora) in modern apple orchards

This study investigated the effects of different registered active ingredients aiming to control fireblight Erwinia amylovora Burill Winslow, in modern apple bearing orchards. Five type active ingredients and combinations were assessed as regard their protective effect against fire blight on the app...

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Main Authors: F.C.Marin, M. Călinescu, M. Sumedrea, E. Chițu
Format: Article
Language:English
Published: Academy of Agricultural and Forestry Sciences 2024-12-01
Series:Romanian Journal of Horticulture
Subjects:
Online Access:https://romanianjournalofhorticulture.ro/index.php/RJH/article/view/127/123
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author F.C.Marin
M. Călinescu
M. Sumedrea
E. Chițu
author_facet F.C.Marin
M. Călinescu
M. Sumedrea
E. Chițu
author_sort F.C.Marin
collection DOAJ
description This study investigated the effects of different registered active ingredients aiming to control fireblight Erwinia amylovora Burill Winslow, in modern apple bearing orchards. Five type active ingredients and combinations were assessed as regard their protective effect against fire blight on the apples. Copper oxiclorure provided an average efficacy E% 78.74-80.81 Better results were obtained with copper hydroxide E% 80.70-81.66. The mixture copper oxiclorure+hydroxide displayed a superior field efficacy ranging between 81.45 - 83.91. Aluminum fosetyl, applied during the flowering period and fruit set provided an average efficacy E% of 90.70 -81.26. The other mixture tested fluopyram+aluminum fosetyl offered an average efficacy E% in fireblight control, within 91.20 - 93.18 especially on growing shoots and fruits. However, in order to increase the bactericides efficacy in apple crop protection, it will be useful and opportune additional researches, on new active ingredients complementarity, water quality monitoring, spray equipment calibration, and improvement of applications quality.
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2734-8083
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publishDate 2024-12-01
publisher Academy of Agricultural and Forestry Sciences
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series Romanian Journal of Horticulture
spelling doaj-art-e3cb967b158f4f2a8571f4fa499bbe7d2025-08-20T02:00:10ZengAcademy of Agricultural and Forestry SciencesRomanian Journal of Horticulture2734-76562734-80832024-12-01559910610.51258/RJH.2024.12Effectiveness of active ingredients in controlling fireblight (Erwinia amylovora) in modern apple orchardsF.C.Marin0M. Călinescu1M. Sumedrea2E. Chițu3Research Institute for Fruit Growing, PitestiResearch Institute for Fruit Growing, PitestiResearch Institute for Fruit Growing, PitestiResearch Institute for Fruit Growing, PitestiThis study investigated the effects of different registered active ingredients aiming to control fireblight Erwinia amylovora Burill Winslow, in modern apple bearing orchards. Five type active ingredients and combinations were assessed as regard their protective effect against fire blight on the apples. Copper oxiclorure provided an average efficacy E% 78.74-80.81 Better results were obtained with copper hydroxide E% 80.70-81.66. The mixture copper oxiclorure+hydroxide displayed a superior field efficacy ranging between 81.45 - 83.91. Aluminum fosetyl, applied during the flowering period and fruit set provided an average efficacy E% of 90.70 -81.26. The other mixture tested fluopyram+aluminum fosetyl offered an average efficacy E% in fireblight control, within 91.20 - 93.18 especially on growing shoots and fruits. However, in order to increase the bactericides efficacy in apple crop protection, it will be useful and opportune additional researches, on new active ingredients complementarity, water quality monitoring, spray equipment calibration, and improvement of applications quality.https://romanianjournalofhorticulture.ro/index.php/RJH/article/view/127/123appleorchardsfireblightchemical control
spellingShingle F.C.Marin
M. Călinescu
M. Sumedrea
E. Chițu
Effectiveness of active ingredients in controlling fireblight (Erwinia amylovora) in modern apple orchards
Romanian Journal of Horticulture
apple
orchards
fireblight
chemical control
title Effectiveness of active ingredients in controlling fireblight (Erwinia amylovora) in modern apple orchards
title_full Effectiveness of active ingredients in controlling fireblight (Erwinia amylovora) in modern apple orchards
title_fullStr Effectiveness of active ingredients in controlling fireblight (Erwinia amylovora) in modern apple orchards
title_full_unstemmed Effectiveness of active ingredients in controlling fireblight (Erwinia amylovora) in modern apple orchards
title_short Effectiveness of active ingredients in controlling fireblight (Erwinia amylovora) in modern apple orchards
title_sort effectiveness of active ingredients in controlling fireblight erwinia amylovora in modern apple orchards
topic apple
orchards
fireblight
chemical control
url https://romanianjournalofhorticulture.ro/index.php/RJH/article/view/127/123
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AT mcalinescu effectivenessofactiveingredientsincontrollingfireblighterwiniaamylovorainmodernappleorchards
AT msumedrea effectivenessofactiveingredientsincontrollingfireblighterwiniaamylovorainmodernappleorchards
AT echitu effectivenessofactiveingredientsincontrollingfireblighterwiniaamylovorainmodernappleorchards