Fungicides Resistance
Mostrando 1-12 de 56 artigos, teses e dissertações.
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1. SYNTHESIS OF GLYCEROL-FLUORINATED TRIAZOLE DERIVATIVES AND EVALUATION OF THEIR FUNGICIDAL ACTIVITY
The control of fungal species in agriculture is mainly conducted with the use of contact or systemic fungicides. However, environmental and human health concerns and increased resistance of fungal species to existing fungicides have increased the pressure on researchers to find new active ingredients for fungal control which present low toxicity to non-targe
Química Nova. Publicado em: 2022
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2. Modifications on Labels and Leaflets of Herbicides for Preventing and Managing Resistance
RESUMO: O desafio de manejo de plantas daninhas resistentes a herbicidas é uma realidade agrícola no Brasil que não pode ser negligenciada. Nesse sentido, o Ministério da Agricultura, Pecuária e Abastecimento (MAPA) publicou o Ato nº 45, em 14 de julho de 2017, o qual prevê a inclusão de um sistema de códigos em rótulos e bulas de inseticidas, fung
Planta daninha. Publicado em: 02/12/2019
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3. CHEMICAL CONTROL OF ASIAN SOYBEAN RUST AS A FUNCTION OF CULTIVAR, ROW SPACING AND SPRAY BAR SUPPORT SYSTEMS
ABSTRACT Product deposition and foliar surface cover are highly impacting factors on the efficiency of foliar fungicides applied to soybean cultivars, due to their low mobility, with side effects on Asian soybean rust (ASR) control. Spray bar support systems, such as the air curtain (Vortex®) and the use of nozzles along the bar (Dropleg®), stand out as an
Eng. Agríc.. Publicado em: 12/08/2019
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4. Resistance to triazole fungicides in Pyricularia species is associated with invasive plants from wheat fields in Brazil
ABSTRACT. Triazole fungicides have not been effective for managing the wheat blast disease in Brazil. A broad analysis across six geographical populations of Pyricularia graminis-tritici in central-southern Brazil indicated a high level of resistance to triazole fungicides. Since P. graminis-tritici is also associated with others poaceous species, here, we a
Acta Sci., Agron.. Publicado em: 13/06/2019
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5. Addition of mancozeb to the fungicide mixtures DMI + QoI and SDHI + QoI on the control of wheat leaf blights
RESUMO As manchas foliares do trigo causadas por Drechslera siccans e, principalmente, D. tritici-repentis são de difícil controle pelas misturas de fungicidas sítio específicos. Devido ao desenvolvimento da resistência, o uso das misturas duplas de sítio específicos apresenta controle inferior a 50%. Em experimento conduzido no campo com a cultivar d
Summa phytopathol.. Publicado em: 2019-03
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6. Quitosana associada com extratos vegetais no controle pós-colheita de antracnose em mamão ‘formosa’
RESUMO O uso excessivo de produtos químicos na cultura do mamão (Carica papaya) coloca em risco a eficácia de fungicidas, em razão dos problemas de resistência dos patógenos a esses produtos, além da possibilidade de resíduos tóxicos colocarem em risco a saúde humana e o ambiente. Diante disto, o presente trabalho teve por objetivo avaliar a eficá
Summa phytopathol.. Publicado em: 2019-03
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7. Control of mycotoxigenic fungi with microcapsules of essential oils encapsulated in chitosan
Abstract Aspergillus and Fusarium are the fungi genera most frequently isolated from cereal grains and other commodities. They are capable of producing mycotoxins, which can affect the human and animal health. Synthetic fungicides have been used to control these fungi, nevertheless, they have acquired resistance and other alternatives are necessary since the
Food Sci. Technol. Publicado em: 21/12/2017
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8. Resistance of Botrytis cinerea to fungicides controlling gray mold on strawberry in Brazil
ABSTRACT The aim of this study was to evaluate the resistance of Botrytis cinerea to the fungicides currently used for its control in Brazil. Isolates of the fungus were collected from different strawberry-producing fields in the states of Espírito Santo, Minas Gerais, and São Paulo, Brazil. First, a total of 183 isolates were identified at the species lev
Bragantia. Publicado em: 15/05/2017
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9. Is the emergence of fungal resistance to medical triazoles related to their use in the agroecosystems? A mini review
Abstract Triazole fungicides are used broadly for the control of infectious diseases of both humans and plants. The surge in resistance to triazoles among pathogenic populations is an emergent issue both in agriculture and medicine. The non-rational use of fungicides with site-specific modes of action, such as the triazoles, may increase the risk of antifung
Braz. J. Microbiol.. Publicado em: 2016-12
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10. Field resistance of potato cultivars to foliar early blight and its relationship with foliage maturity and tuber skin types
Three field experiments were carried out to assess the level of resistance of several cultivars to early blight (EB) and to examine the association between host resistance and either foliage maturity or tuber skin types. A total of 26 cultivars were used in Exps. 1 and 2, and 24 in Exp. 3. Plants were inoculated with isolates of Alternaria grandis at 31 days
Trop. plant pathol.. Publicado em: 2014-08
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11. Baseline sensitivity of Brazilian Mycosphaerella fijiensis isolates to protectant and systemic fungicides
Black Sigatoka caused by Mycosphaerella fijiensis is a foliar disease that affects banana plants and large amounts of fungicides are required to prevent crop losses. Intensive applications of single-site fungicides can select for fungicide-resistant isolates. The objective of this study was to assess the sensitivity of 60 isolates of M. fijiensis to commonly
Trop. plant pathol.. Publicado em: 2014-04
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12. Chemical management in fungicide sensivity of Mycosphaerella fijiensis collected from banana fields in México
The chemical management of the black leaf streak disease in banana caused by Mycosphaerella fijiensis (Morelet) requires numerous applications of fungicides per year. However this has led to fungicide resistance in the field. The present study evaluated the activities of six fungicides against the mycelial growth by determination of EC50 values of strains co
Braz. J. Microbiol.. Publicado em: 2014