Métodos de aplicação e inseticidas no controle de percevejos na cultura da soja

Fiorin, Rubens Alex; Stürmer, Glauber Renato; Guedes, Jerson Vanderlei Carús; Costa, Ivan Francisco Dressler da; Perini, Clérison Régis

doi:10.5433/1679-0359.2011v32n1p139

Cited by 5 publications

(4 citation statements)

References 4 publications

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“…The susceptibility of stink bugs to commercial products containing thiamethoxam is widely known (Sosa-Gómez et al 2009, Fiorin et al 2011. The effect of these products is also known for other soybean pests species, such as Piezodorus guildinii (Westwood) (Heteroptera: Pentatomidae) and Nezara viridula (L.) (Heteroptera: Pentatomidae) (Ramiro et al 2005, Farias et al 2006.…”

Section: Resultsmentioning

confidence: 99%

Neonicotinoid insecticide systemicity in soybean plants and its effect on brown stink bugs

Basso

Kuss²,

Pias

et al. 2016

Pesqui. Agropecu. Trop.

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During the application of pesticides on soybean fields, a vertical deposition gradient of the product can occur throughout the canopy, resulting in difficulties for controlling stink bugs that are in the middle and lower thirds of plants. This study aimed at evaluating the systemicity of thiamethoxam insecticide in different soybean phenological stages, using brown stink bugs as bioindicators of the pesticide efficacy. The study combined product application sites (lower, middle and upper third) and stink bugs infestation areas at five soybean phenological stages (R2, R3, R4, R5.2 and R6). For the R2 and R5.2 stages, plants presented acropetal translocation of the product, being the effect more evident in the R2 stage. For the R3, R4 and R6 stages, the product translocation was not sufficient for controlling the stink bugs. In all stages, for treatments with direct exposure (same infestation and spraying place), stink bugs were satisfactorily controlled.

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Section: Resultsmentioning

confidence: 99%

Neonicotinoid insecticide systemicity in soybean plants and its effect on brown stink bugs

Basso

Kuss²,

Pias

et al. 2016

Pesqui. Agropecu. Trop.

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“…A espécie predominante foi E. meditabunda, com 129 indivíduos. Esse inseto é encontrado em culturas de alface (Krinski;Pelissari, 2012) e pode ser considerado como uma praga secundária da cultura da soja (Fiorin et al, 2011). Em relação à segunda espécie mais predominante, D. speciosa, ataca as folhas do girassol, perfurando-as (Gazzola et al, 2012).…”

Section: Discussionunclassified

Análise da entomofauna e flutuação associada a quatro culturas com potencial para produção de biodiesel

Matsumoto

Fernandes²,

Mota³

2015

Arq. Inst. Biol.

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As culturas oleaginosas vêm ganhando destaque devido ao seu potencial para a produção de biodiesel, como uma alternativa ao diesel. Portanto, neste trabalho objetivou-se avaliar a entomofauna, por meio de análises faunísticas, associada às seguintes culturas: nabo forrageiro, niger, crambe e girassol, no município de Dourados, estado de Mato Grosso do Sul, tendo em vista que esses cultivares possuem potencial para a produção de biodiesel. Os insetos foram coletados com o método de pano de coleta. As avaliações ocorreram em área experimental agrícola (latitude de 22º 14'S, longitude de 54º 49'W). Foi observado um total de 7.406 espécimes nas quatro culturas, correspondendo a 3.569 espécimes no nabo forrageiro, o qual apresentou uma riqueza de insetos com 18 espécies; 2.275 espécimes no niger, com uma riqueza de 17 espécies; 908 espécimes no crambe com uma riqueza de 18 espécies; e 654 espécimes no girassol com uma riqueza de 18 espécies. Com relação ao estudo da diversidade de espécies medida nas quatro culturas analisadas, o índice de Shannon-Wiener (H') indicou baixa diversidade apenas na cultura do nabo forrageiro, uma vez que o maior valor ocorreu na cultura do girassol (22,935), seguida por crambe (17,487), niger (15,364) e nabo forrageiro (0,5716). A cultura que apresentou o maior índice de equitabilidade foi a do girassol (0,7935), seguida por crambe (0,6047), niger (0,5423) e nabo forrageiro (0,1978), indicando uma semelhança de composição faunística entre girassol, crambe e niger.

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“…To reduce losses, control of this insect is accomplished by chemical insecticide applications from the vegetative phase of the plant and are not always efficient and selective to natural enemies (Sosa-Gomez and Fiorin et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Spatial distribution of adults and nymphs of stink bug, Edessa meditabunda (Fabricius, 1974) (Hemiptera: Pentatomidae) on soybean Bt and non-Bt

Fonseca¹,

Fernandes²,

Justiniano³

et al. 2017

Afr. J. Agric. Res.

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Knowledge of the dispersion of adults and nymphs of Edessa meditabunda in soybean model is needed to determine the control actions and thus enable proper use of strategies to avoid losses in production. This research aimed to conduct probabilistic analysis of the spatial distribution patterns of adults and nymphs of E. meditabunda in two regions in soybean Bt and non-Bt. For the evaluations, the method of cloth-to-beat was used, where one sample per plot was collected randomly from each experimental area. Evaluations were performed at 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91 and 98 days after emergence. For data analysis, the rates of dispersion (variance/average Morisita index and exponent k Negative Binomial Distribution) and theoretical frequency distributions (Poisson, Binomial and Negative Binomial Positive) at 5% probability were calculated. The peak population of adults and nymphs of E. meditabunda was observed in the reproductive stage of soybean Bt and non-Bt in Dourados and Douradina. From the results obtained, it can be concluded that the Bt technology had the spatial arrangement of adults and nymphs of E. meditabunda, and is set in probabilistic arrangements with negative binomial distribution (aggregate) in the two regions surveyed. In non-Bt soybeans for adults and nymphs of E. meditabunda, spatial arrangements had set in probabilistic arrangements of positive and negative binomial distribution (uniform), as the days after emergence, for the region of Dourados and Douradina.

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Métodos de aplicação e inseticidas no controle de percevejos na cultura da soja

Cited by 5 publications

References 4 publications

Neonicotinoid insecticide systemicity in soybean plants and its effect on brown stink bugs

Neonicotinoid insecticide systemicity in soybean plants and its effect on brown stink bugs

Análise da entomofauna e flutuação associada a quatro culturas com potencial para produção de biodiesel

Spatial distribution of adults and nymphs of stink bug, Edessa meditabunda (Fabricius, 1974) (Hemiptera: Pentatomidae) on soybean Bt and non-Bt

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