Fungicides
Mostrando 25-36 de 260 artigos, teses e dissertações.
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25. Comparison of the efficacy of QoI fungicides, alone or in mixture with triazoles, in Asian soybean rust control, 2016/17 growing season
RESUMO Tem sido relatada a evolução da redução da sensibilidade de Phakopsora pachyrhizi às misturas dos três mecanismos de ação sítio-específicos (IDMs, IQes e ISDHs) usadas no seu controle. O objetivo desse trabalho foi quantificar a contribuição atual dos IQes, isolados ou em mistura com triazpois, no controle da ferrugem asiática da soja. Em
Summa phytopathol.. Publicado em: 2019-03
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26. 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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27. 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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28. Antagonism between fungicide-insecticide treatments and dietholate in irrigated rice seeds
Resumo: Para proporcionar maior seletividade do herbicida clomazone à cultura do arroz, pode-se utilizar o protetor dietholate em conjunto com outros tratamentos de sementes (ST), o que possibilita o uso de doses maiores do herbicida. O objetivo do trabalho foi avaliar a interação entre o tratamento de sementes que utilizam fungicidas e inseticidas e o pr
J. Seed Sci.. Publicado em: 2019-01
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29. Ecofriendly Synthesis of Silver Nanoparticles Using Potato Steroidal Alkaloids and Their Activity Against Phytopathogenic Fungi
ABSTRACT In order to reduce the excessive reliance on the toxic chemical fungicides, the present study aimed to isolate the total potato glycoalkaloids (TPAs), and the two steroidal alkaloids α-chaconine and α-solanine from potatoes, Solanum tuberosum L. Their structures were characterized using physical and spectroscopic methods including (UV, IR, 1H, 13C
Braz. arch. biol. technol.. Publicado em: 14/11/2018
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30. Efficiency of garden waste compost teas on tomato growth and its suppressiveness against soilborne pathogens
ABSTRACT: The use of compost teas is of great interest to sustainable agriculture. Aerated compost tea (ACT) and aerated vermicompost tea (AVT) originating from garden waste have been analytically characterized and tested in vitro and in vivo on tomato plants to determine their suppressive effect on Rhizoctonia solani and Fusarium oxysporum f. sp. lycopersic
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-09
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31. Biotic Contamination and Possible Ways of Sterilization: A Review with Reference to Bamboo Micropropagation.
ABSTRACT Multipurpose use of bamboo in rural life makes it as poor man’s timber in Asian countries. Deforestation and industrialization leads to destruction of natural forest. To replenish, a rapid plantation of bamboo could be one of the possible solutions. Bamboo is propagated mainly by vegetative methods though it is not suitable for large scale plantat
Braz. arch. biol. technol.. Publicado em: 14/06/2018
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32. Chemical Control of Mycosphaerella Leaf Disease on Eucalyptus dunnii in Southern Brazil
ABSTRACT Mycosphaerella leaf disease (MLD) is a dangerous disease for eucalypt plantations; however little information is available regarding its control using fungicides in South America. In this study, we evaluated MLD control, and growth in young stands of Eucalyptus dunnii clones (C18 and C25). After two applications of azoxystrobin + cyproconazole (0.3
Floresta Ambient.. Publicado em: 21/05/2018
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33. Copper and zinc fractions in the profile of an Inceptisol cultivated with apple in southern Brazil
ABSTRACT The present study aimed to evaluate the accumulation and distribution of Cu and Zn fractions in the profile of an Inceptisol by application of fungicides with a previous history of apple cultivation in southern Brazil. Stratified soil samples (0.0 – 0.025 m, 0.025 –0.050 m, 0.05 – 0.10 m, 0.10 – 0.15 m, 0.15 – 0.20 m and 0.20 – 0.40 m de
Bragantia. Publicado em: 16/04/2018
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34. 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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35. SPRAY NOZZLES PERFORMANCE IN FUNGICIDES APPLICATIONS FOR ASIAN SOYBEAN RUST CONTROL
ABSTRACT: The performance of fungicides in controlling Asian soybean rust depends, in part, the spray quality of these products. The market of components to spray offers new types of nozzles which generate droplets with different characteristics. This study aimed to verify whether applications of fungicides with different spray nozzles interfere in soybean r
Eng. Agríc.. Publicado em: 2017-08
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36. 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