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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
23/10/2018 |
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Data da última atualização: |
07/12/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, T. T. M. dos; QUINTELA, E. D.; MASCARIN, G. M.; SANTANA, M. V. |
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Afiliação: |
TASSIA TUANE MOREIRA DOS SANTOS, UFG; ELIANE DIAS QUINTELA, CNPAF; GABRIEL MOURA MASCARIN, CNPMA; MARCUS VINICIUS SANTANA, UFG. |
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Título: |
Enhanced mortality of Bemisia tabaci nymphs by Isaria javanica combined with sublethal doses of chemical insecticides. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Journal of Applied Entomology, v. 142, n. 6, p. 598-609, 2018. |
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ISSN: |
1439-0418 |
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DOI: |
https://doi.org/10.1111/jen.12504 |
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Idioma: |
Inglês |
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Conteúdo: |
The aim of this current study was to evaluate the mortality of Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) nymphs by the combination between the entomopathogenic fungus Isaria javanica (Friedrichs & Bally) Samson & Hywel-Jones and synthetic chemical insecticides. The bioefficacy of I. javanica and the insect growth regulators named spiromesifen and buprofezin was tested alone and in combination against B. tabaci nymphs under screenhouse conditions. The in vitro compatibility between these two control agents was previously assessed under laboratory conditions. The sublethal concentration (LC25) of these insecticides towards second-instar nymphs was determined and then mixed with the fungal treatments to investigate the type of interaction. All I. javanica isolates at 5 × 107 conidia/ml inflicted nymphal mortality by up to 62.4%. The insecticides did not influence the germination and mycelial growth of the selected I. javanica isolate CG1282. In general, the insecticide-fungus combinations increased nymphal mortalities in comparison with their single counterparts. Combinations with the fungus and buprofezin or spiromesifen augmented nymphal mortality by 10% and 24%, respectively, in comparison with the fungus alone. Additive interaction was found with the combination of the I. javanica CG1282 at 1 × 106 conidia/ml and spiromesifen at 1.56 ppm, and additive and synergistic interactions were achieved with the fungus at 5 × 106 conidia/ml and spiromesifen at 3.12, 6.25 and 12.5 ppm. Additive interactions were also observed from mixtures of fungus at 5 × 106 and buprofezin at 3.12 and 6.25 ppm. Only combinations of I. javanica with spiromesifen reduced to some extent the mycosis on dead nymphs. The joint action of I. javanica with sublethal doses of these insecticides may be a promising tool to assist in the integrated management system for B. tabaci. MenosThe aim of this current study was to evaluate the mortality of Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) nymphs by the combination between the entomopathogenic fungus Isaria javanica (Friedrichs & Bally) Samson & Hywel-Jones and synthetic chemical insecticides. The bioefficacy of I. javanica and the insect growth regulators named spiromesifen and buprofezin was tested alone and in combination against B. tabaci nymphs under screenhouse conditions. The in vitro compatibility between these two control agents was previously assessed under laboratory conditions. The sublethal concentration (LC25) of these insecticides towards second-instar nymphs was determined and then mixed with the fungal treatments to investigate the type of interaction. All I. javanica isolates at 5 × 107 conidia/ml inflicted nymphal mortality by up to 62.4%. The insecticides did not influence the germination and mycelial growth of the selected I. javanica isolate CG1282. In general, the insecticide-fungus combinations increased nymphal mortalities in comparison with their single counterparts. Combinations with the fungus and buprofezin or spiromesifen augmented nymphal mortality by 10% and 24%, respectively, in comparison with the fungus alone. Additive interaction was found with the combination of the I. javanica CG1282 at 1 × 106 conidia/ml and spiromesifen at 1.56 ppm, and additive and synergistic interactions were achieved with the fungus at 5 × 106 conidia/ml and spiromesifen at 3.12, 6.25 an... Mostrar Tudo |
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Thesagro: |
Bemisia Tabaci; Controle Biológico; Fungo Para Controle Biológico; Inseticida. |
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Thesaurus Nal: |
Biological control; Buprofezin; Cordycipitaceae; Entomopathogenic fungi; Integrated pest management; Plant pests; Spiromesifen; Synergism. |
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Categoria do assunto: |
O Insetos e Entomologia |
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Marc: |
LEADER 02899naa a2200325 a 4500
001 2098036
005 2018-12-07
008 2018 bl uuuu u00u1 u #d
022 $a1439-0418
024 7 $ahttps://doi.org/10.1111/jen.12504$2DOI
100 1 $aSANTOS, T. T. M. dos
245 $aEnhanced mortality of Bemisia tabaci nymphs by Isaria javanica combined with sublethal doses of chemical insecticides.$h[electronic resource]
260 $c2018
520 $aThe aim of this current study was to evaluate the mortality of Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) nymphs by the combination between the entomopathogenic fungus Isaria javanica (Friedrichs & Bally) Samson & Hywel-Jones and synthetic chemical insecticides. The bioefficacy of I. javanica and the insect growth regulators named spiromesifen and buprofezin was tested alone and in combination against B. tabaci nymphs under screenhouse conditions. The in vitro compatibility between these two control agents was previously assessed under laboratory conditions. The sublethal concentration (LC25) of these insecticides towards second-instar nymphs was determined and then mixed with the fungal treatments to investigate the type of interaction. All I. javanica isolates at 5 × 107 conidia/ml inflicted nymphal mortality by up to 62.4%. The insecticides did not influence the germination and mycelial growth of the selected I. javanica isolate CG1282. In general, the insecticide-fungus combinations increased nymphal mortalities in comparison with their single counterparts. Combinations with the fungus and buprofezin or spiromesifen augmented nymphal mortality by 10% and 24%, respectively, in comparison with the fungus alone. Additive interaction was found with the combination of the I. javanica CG1282 at 1 × 106 conidia/ml and spiromesifen at 1.56 ppm, and additive and synergistic interactions were achieved with the fungus at 5 × 106 conidia/ml and spiromesifen at 3.12, 6.25 and 12.5 ppm. Additive interactions were also observed from mixtures of fungus at 5 × 106 and buprofezin at 3.12 and 6.25 ppm. Only combinations of I. javanica with spiromesifen reduced to some extent the mycosis on dead nymphs. The joint action of I. javanica with sublethal doses of these insecticides may be a promising tool to assist in the integrated management system for B. tabaci.
650 $aBiological control
650 $aBuprofezin
650 $aCordycipitaceae
650 $aEntomopathogenic fungi
650 $aIntegrated pest management
650 $aPlant pests
650 $aSpiromesifen
650 $aSynergism
650 $aBemisia Tabaci
650 $aControle Biológico
650 $aFungo Para Controle Biológico
650 $aInseticida
700 1 $aQUINTELA, E. D.
700 1 $aMASCARIN, G. M.
700 1 $aSANTANA, M. V.
773 $tJournal of Applied Entomology$gv. 142, n. 6, p. 598-609, 2018.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
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Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
18/03/2024 |
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Data da última atualização: |
18/03/2024 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
TAVARES, S. R. de L.; RODRIGUES, N. F.; CORRÊA, G. M. |
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Afiliação: |
SILVIO ROBERTO DE LUCENA TAVARES, CNPS; NATÁLIA FERNANDES RODRIGUES, UNIVERSIDADE FEDERAL RURAL DO RIO DE JANEIRO; GABRIELA MARTINS CORRÊA, UNIVERSIDADE FEDERAL FLUMINENSE. |
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Título: |
Use of low-cost class a evapotranspiration pan for reference evapotranspiration estimation in protected and field environments. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
In: WORKSHOP ON BIOSYSTEMS ENGINEERING - WEB 9.0, 9., 2023, Niterói. Proceedings [...]. Niterói: AGRHA Consulting, 2023. p. 111-117. |
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Idioma: |
Inglês |
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Conteúdo: |
Currently, there are various methods for determining the Class A pan coefficient (Kp) in estimating reference evapotranspiration (ETo), which is of utmost importance for water management in agriculture. This study aimed to estimate ETo inside and outside agricultural greenhouses using a low-cost constructed Class A pan (TCA-c) method. To estimate ETo, it is necessary to establish the Kp, as ETo is the product of ECA multiplied by Kp. This study employed the calibration method, comparing ETo determined by Penman-Monteith (EToPM) with Class A pan evaporation (ECA) to determine Kp. EToPM served as the standard for correlations with reference evapotranspiration using the TCA-c method inside and outside an agricultural greenhouse, avoiding the installation of a "Class A" pan inside the greenhouse. The experiment was conducted at UFF's Gragoatá campus in Niterói - RJ. Four TCA-c pans were installed (three inside and one outside an agricultural greenhouse) and managed for one year. Principal Component Analyses (PCA) revealed significant differences in ETo throughout the seasons. Adjusted Kps were established for all pans. It was observed that ETo inside the greenhouse was lower than that estimated outside. It is recommended to install the TCA-c pan inside the greenhouse for ETo estimation, utilizing different Kps throughout the seasons. |
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Palavras-Chave: |
Class A Pan; Pan coefficient; Reference evapotranspiration. |
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Thesagro: |
Evapotranspiração. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1162925/1/Use-of-low-cost-class-a-evapotranspiration-pan-2023.pdf
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Marc: |
LEADER 02058nam a2200181 a 4500
001 2162925
005 2024-03-18
008 2023 bl uuuu u00u1 u #d
100 1 $aTAVARES, S. R. de L.
245 $aUse of low-cost class a evapotranspiration pan for reference evapotranspiration estimation in protected and field environments.$h[electronic resource]
260 $aIn: WORKSHOP ON BIOSYSTEMS ENGINEERING - WEB 9.0, 9., 2023, Niterói. Proceedings [...]. Niterói: AGRHA Consulting, 2023. p. 111-117.$c2023
520 $aCurrently, there are various methods for determining the Class A pan coefficient (Kp) in estimating reference evapotranspiration (ETo), which is of utmost importance for water management in agriculture. This study aimed to estimate ETo inside and outside agricultural greenhouses using a low-cost constructed Class A pan (TCA-c) method. To estimate ETo, it is necessary to establish the Kp, as ETo is the product of ECA multiplied by Kp. This study employed the calibration method, comparing ETo determined by Penman-Monteith (EToPM) with Class A pan evaporation (ECA) to determine Kp. EToPM served as the standard for correlations with reference evapotranspiration using the TCA-c method inside and outside an agricultural greenhouse, avoiding the installation of a "Class A" pan inside the greenhouse. The experiment was conducted at UFF's Gragoatá campus in Niterói - RJ. Four TCA-c pans were installed (three inside and one outside an agricultural greenhouse) and managed for one year. Principal Component Analyses (PCA) revealed significant differences in ETo throughout the seasons. Adjusted Kps were established for all pans. It was observed that ETo inside the greenhouse was lower than that estimated outside. It is recommended to install the TCA-c pan inside the greenhouse for ETo estimation, utilizing different Kps throughout the seasons.
650 $aEvapotranspiração
653 $aClass A Pan
653 $aPan coefficient
653 $aReference evapotranspiration
700 1 $aRODRIGUES, N. F.
700 1 $aCORRÊA, G. M.
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