Azoxystrobin
Mostrando 13-24 de 84 artigos, teses e dissertações.
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13. 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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14. Reduced sensitivity to azoxystrobin is stable in Monilinia fructicola isolates
ABSTRACT A shift towards declining azoxystrobin sensitivity has been previously documented in a collection of Brazilian Monilinia fructicola isolates, but information on the stability of this trait after in vitro sub-culturing is not available. In this study, one highly-sensitive isolate and two isolates with reduced sensitivity to azoxystrobin, not exhibiti
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-04
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15. Resíduos de fungicidas e inseticidas em grãos de arroz
RESUMO. O estudo objetivou analisar resíduos de fungicidas e inseticidas nos grãos de arroz submetidos a diferentes formas de processamento. O trabalho foi realizado no campo durante três safras agrícolas com a aplicação de fungicidas e inseticidas sobre a parte aérea das plantas de arroz. Foi realizado um tratamento com a aplicação dos fungicidas a
Acta Sci., Agron.. Publicado em: 2017-03
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16. Determinação de agrotóxicos na água e sedimentos por HPLC-HRMS e sua relação com o uso e ocupação do solo
In present times, the Brazil is in the middle of the largest pesticide consumers worldwide, which demands proper control of environmental contamination. This study evaluated herbicides, acaricide, insecticides and fungicides in water and sediment carried-out from Lageado Tacongava hydrographic basin, Rio Grande do Sul, Brazil. For analysis, a QuEChERS (Quick
Quím. Nova. Publicado em: 2017-02
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17. Monitoring of Pesticide Residues in Surface and Subsurface Waters, Sediments, and Fish in Center-Pivot Irrigation Areas
In this study, the monitoring of pesticide residues, which show potential for environmental contamination, in center-pivot irrigated areas in the Brazilian cerrado, was performed. The pesticides monitored were acephate, atrazine, azoxystrobin, buprofezin, carbofuran, cyproconazole, chlorpyrifos, difenoconazole, diuron, imidacloprid, malathion, methamidophos,
J. Braz. Chem. Soc.. Publicado em: 2015-11
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18. Effects of Types of Washing and Peeling in Relation to Pesticide Residues in Tomatoes
Tomatoes are widely consumed and most often without cooking, therefore it is important to estimate the reduction of residues using simple washing procedures. An experiment was carried out to evaluate the effects of household processing such as: washing with water, washing with 10% of vinegar solution and washing with 10% of sodium bicarbonate solution on pes
J. Braz. Chem. Soc.. Publicado em: 2015-10
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19. Controle biológico da Sigatoka-negra da bananeira com Trichoderma
A Sigatoka-negra causada por Mycosphaerella fijiensis é a doença mais destrutiva da bananeira em termos mundiais. O patógeno está em uma fase invasiva no Brasil e já se encontra distribuído na maior parte dos Estados do país. O potencial de 29 isolados de Trichoderma spp. para o controle da Sigatoka-negra foi estudado sob condições de campo. Quatro
Cienc. Rural. Publicado em: 2015-06
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20. Atividade protetora, curativa e erradicante de fungicidas no controle de ferrugem da videira
As atividades protetoras, curativas e erradicantes dos fungicidas azoxystrobin, pyraclostrobin+metiram, tebuconazole e ciproconazole foram avaliadas em relação à ferrugem, em casa de vegetação. Para a avaliação da atividade protetora, folhas de plantas de videira ´Niagara´ (Vitis labrusca) foram artificialmente inoculadas com uma suspensão de uredi
Cienc. Rural. Publicado em: 2014
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21. 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
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22. Compatibility of conventional agrochemicals used in rice crops with the entomopathogenic fungus Metarhizium anisopliae
The toxicological impact of chemical pesticides on fungal entomopathogens and their use in tank-mixing can be directly measured through in vitro compatibility tests. This study reports the in vitro toxicity of eight insecticides, four fungicides and five herbicides in the conidial germination, vegetative growth and conidiation of Metarhizium anisopliae (stra
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-06
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23. Ação de ativador de defesa e fungicida foliar no controle da ferrugem asiática, na produção e na qualidade das sementes de soja
Objetivou-se avaliar a aplicação de ativador de defesa (Bion®, acibenzolar-S-metil) e fungicida foliar (Priori Xtra®, azoxystrobin + ciproconazole) no controle da ferrugem asiática (Phakopsora pachyrhizi) e o efeito da doença sobre a produtividade e a qualidade das sementes de soja. O delineamento foi em blocos casualizados em esquema fatorial 4 X 10 c
J. Seed Sci.. Publicado em: 2013
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24. Temporal analysis and fungicide management strategies to control mango anthracnose epidemics in Guerrero, Mexico
The temporal progress of anthracnose (Colletotrichum gloeosporioides) epidemics was studied in mango (Mangifera indica) orchards treated with fungicides from different chemical groups, mode of action, and application sequences in two regions of contrasting climates (sub-humid and dry tropics) in Guerrero, Mexico. Full flowering, initial setting, and 8-15mm �
Trop. plant pathol.. Publicado em: 2012-12