Organic Production of Snap Bean in Bulgaria: Pests and Diseases Incidence and Control, Soil Fertility and Yield

Among factors affecting snap bean production in organic growing systems, pests and diseases are of paramount importance. The current study was aimed to determine the impact of organic production practices on snap bean pests and diseases infestation, soil fertility and yield. Five treatments of plant...

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Main Authors: Vinelina Yankova, Olga Georgieva, Nataliya Karadzhova, Dima Markova, Slavka Kalapchieva, Ivanka Tringovska
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Horticulturae
Subjects:
Online Access:https://www.mdpi.com/2311-7524/9/1/90
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author Vinelina Yankova
Olga Georgieva
Nataliya Karadzhova
Dima Markova
Slavka Kalapchieva
Ivanka Tringovska
author_facet Vinelina Yankova
Olga Georgieva
Nataliya Karadzhova
Dima Markova
Slavka Kalapchieva
Ivanka Tringovska
author_sort Vinelina Yankova
collection DOAJ
description Among factors affecting snap bean production in organic growing systems, pests and diseases are of paramount importance. The current study was aimed to determine the impact of organic production practices on snap bean pests and diseases infestation, soil fertility and yield. Five treatments of plants during the whole growing season with a Bordeaux mixture at a dose of 3000 g/ha, provided more than 50 percent protective effect against the development of the bacterial blight <i>Xanthomonas axanopodis</i> pv. <i>phaseoli</i> and anthracnose <i>Colletotrichum lindemuthianum</i>. In organic fields, commercial bioproducts containing pyrethrins or entomopathogenic fungi <i>Beauveria bassiana</i> can be successfully applied to control the black bean aphid (<i>Aphis fabae</i> Scop.). To limit the attack of bean weevil (<i>Acanthoscelides obtectus</i> Say), phytopesticide containing pyrethrins can also be used. Against the two-spotted spider mite (<i>Tetranychus urticae</i> Koch.), products containing the active ingredient azadirachtin were seen to be effective five days after treatment. Soil amendment with vermicompost at a dose of 2850 L/ha slightly increased the amounts of water-soluble nutrients; however, soil remained nutrient deficient across the growing season. Among the tested Bulgarian varieties, Evros possessed higher yield, and appear to be suitable for organic system than the Tangra variety.
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spelling doaj.art-0d3f25d8dbc34d34bfb01cbb169071d82023-11-30T22:30:46ZengMDPI AGHorticulturae2311-75242023-01-01919010.3390/horticulturae9010090Organic Production of Snap Bean in Bulgaria: Pests and Diseases Incidence and Control, Soil Fertility and YieldVinelina Yankova0Olga Georgieva1Nataliya Karadzhova2Dima Markova3Slavka Kalapchieva4Ivanka Tringovska5Maritsa Vegetable Crops Research Institute, Agricultural Academy, 4003 Plovdiv, BulgariaMaritsa Vegetable Crops Research Institute, Agricultural Academy, 4003 Plovdiv, BulgariaMaritsa Vegetable Crops Research Institute, Agricultural Academy, 4003 Plovdiv, BulgariaMaritsa Vegetable Crops Research Institute, Agricultural Academy, 4003 Plovdiv, BulgariaMaritsa Vegetable Crops Research Institute, Agricultural Academy, 4003 Plovdiv, BulgariaMaritsa Vegetable Crops Research Institute, Agricultural Academy, 4003 Plovdiv, BulgariaAmong factors affecting snap bean production in organic growing systems, pests and diseases are of paramount importance. The current study was aimed to determine the impact of organic production practices on snap bean pests and diseases infestation, soil fertility and yield. Five treatments of plants during the whole growing season with a Bordeaux mixture at a dose of 3000 g/ha, provided more than 50 percent protective effect against the development of the bacterial blight <i>Xanthomonas axanopodis</i> pv. <i>phaseoli</i> and anthracnose <i>Colletotrichum lindemuthianum</i>. In organic fields, commercial bioproducts containing pyrethrins or entomopathogenic fungi <i>Beauveria bassiana</i> can be successfully applied to control the black bean aphid (<i>Aphis fabae</i> Scop.). To limit the attack of bean weevil (<i>Acanthoscelides obtectus</i> Say), phytopesticide containing pyrethrins can also be used. Against the two-spotted spider mite (<i>Tetranychus urticae</i> Koch.), products containing the active ingredient azadirachtin were seen to be effective five days after treatment. Soil amendment with vermicompost at a dose of 2850 L/ha slightly increased the amounts of water-soluble nutrients; however, soil remained nutrient deficient across the growing season. Among the tested Bulgarian varieties, Evros possessed higher yield, and appear to be suitable for organic system than the Tangra variety.https://www.mdpi.com/2311-7524/9/1/90<i>Phaseolus vulgaris</i> L.seed-borne pathogenspest managementorganic
spellingShingle Vinelina Yankova
Olga Georgieva
Nataliya Karadzhova
Dima Markova
Slavka Kalapchieva
Ivanka Tringovska
Organic Production of Snap Bean in Bulgaria: Pests and Diseases Incidence and Control, Soil Fertility and Yield
Horticulturae
<i>Phaseolus vulgaris</i> L.
seed-borne pathogens
pest management
organic
title Organic Production of Snap Bean in Bulgaria: Pests and Diseases Incidence and Control, Soil Fertility and Yield
title_full Organic Production of Snap Bean in Bulgaria: Pests and Diseases Incidence and Control, Soil Fertility and Yield
title_fullStr Organic Production of Snap Bean in Bulgaria: Pests and Diseases Incidence and Control, Soil Fertility and Yield
title_full_unstemmed Organic Production of Snap Bean in Bulgaria: Pests and Diseases Incidence and Control, Soil Fertility and Yield
title_short Organic Production of Snap Bean in Bulgaria: Pests and Diseases Incidence and Control, Soil Fertility and Yield
title_sort organic production of snap bean in bulgaria pests and diseases incidence and control soil fertility and yield
topic <i>Phaseolus vulgaris</i> L.
seed-borne pathogens
pest management
organic
url https://www.mdpi.com/2311-7524/9/1/90
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AT nataliyakaradzhova organicproductionofsnapbeaninbulgariapestsanddiseasesincidenceandcontrolsoilfertilityandyield
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