Eficiência de isca formicida aplicada sobre o monte de terra solta de ninhos de Atta sexdens rubropilosa (Hymenoptera: Formicidae)

Zanetti, Ronald; Zanúncio, José Cola; Souza-Silva, Alan; Abreu, Luiz Gonzaga de

doi:10.1590/s0100-67622003000300019

Cited by 10 publications

(7 citation statements)

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“…organophosphate, carbamates and pyrethroids) to more modern substances (e.g., sulfluramid and fipronil). Curiously though, control, and not management, of leaf‐cutting ants is generally the goal, and a basic economic threshold for the management of these species is noticeably lacking, with control decisions usually based on empirical observations . Prompted by increased concern and studies aimed at determining economic injury levels of leaf‐cutting ants, a welcome change in approach seems to be occurring.…”

Section: Trends In Leaf‐cutting Ant Managementmentioning

confidence: 99%

“…Curiously though, control, and not management, of leaf-cutting ants is generally the goal, and a basic economic threshold for the management of these species is noticeably lacking, with control decisions usually based on empirical observations. 88,89 Prompted by increased concern and studies aimed at determining economic injury levels of leaf-cutting ants, a welcome change in approach seems to be occurring. Cultivated Eucalyptus seem to be the focus of attention regarding this effort, and economic injury levels in the range of 13.4-39.2 m 2 ha -1 of nest (based on the number and area of nests in a given field) have been suggested.…”

Section: Trends In Leaf-cutting Ant Managementmentioning

confidence: 99%

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Managing leaf-cutting ants: peculiarities, trends and challenges

2013

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Leaf-cutting ants are generally recognized as important pest species in Neotropical America. They are eusocial insects that exhibit social organization, foraging, fungus-cultivation, hygiene and a complex nest structure, which render their management notoriously difficult. A lack of economic thresholds and sampling plans focused on the main pest species preclude the management of leaf-cutting ants; such management would facilitate their control and lessen insecticide overuse, particularly the use of insecticidal baits. Recent restrictions on the use of synthetic compounds for such purposes impose additional challenges for the management of leaf-cutting ants. Considerable effort has been exerted regarding these challenges, which are addressed herein, but which also remain challenges that are yet to be conquered.

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Section: Trends In Leaf‐cutting Ant Managementmentioning

confidence: 99%

Section: Trends In Leaf-cutting Ant Managementmentioning

confidence: 99%

Managing leaf-cutting ants: peculiarities, trends and challenges

2013

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“…The use of sulfluramid as formicide is already known (Zanetti et al, 2003;Nagamoto et al, 2004), and so it was used as a standard comparative to diafenthiuron.…”

Section: Preparation and Application Of Treatmentsmentioning

confidence: 99%

Effects of Diafenthiuron in Toxic Baits on Colonies of Leaf-cutting ants (Hymenoptera: Formicidae)

et al. 2017

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Dianfenthiuron is a pre-insecticide that can be activated by photolysis, and may be a promising formicide. This study evaluated the effect of diafenthiuron after photolysis in colonies of Atta sexdens rubropilosa Forel, 1908. The experiment was conducted in a completely randomized design with five treatments and five replications: control (no active ingredient), sulfluramid (standard formicide), diafenthiuron (no exposure to UV), diafenthiuron (2h exposure to UV) and diafenthiuron (6h exposure to UV). Toxic baits were applied at a rate of 0.5 g per colony, and we observed the transport and incorporation of the baits into the colonies. A grading scale was used (0 to 4) to measure the cutting of Acalypha L. (Euphorbiaceae) leaves by workers at 2, 7, 14 and 21 days after application (DAA) and we also measured the garden mass (fungus + adult + brood) at 21 DAA in order to check for growth of the fungus culture. Total loading and incorporation occurred one hour after application of the baits. Colonies that received sulfluramid did not transport leaves at 2 DAA. Workers that received baits with D2h showed an average of 20% transport and 55% incorporation of leaves at 21 DAA. The grading scale indicated that treatments D2h and D6h had the lowest averages, 0.80 and 2.00, respectively. The treatments D2h and D6h reduced cutting of leaves and fungus garden mass, but did not kill the colonies of A. sexdens rubropilosa.

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“…Entre os métodos mais utilizados esta a termonebulização (Couto et al, 1978e Rizental et al 2003, pós secos e iscas granuladas (Zanuncio et al, 2002;Zanetti et al, 2003), sendo esse último o mais praticado pelas empresas de reflorestamento de todo o País.…”

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Efeito de diferentes doses do formicida “citromax” no controle de <i>Acromyrmex lundi</i> (Hymenoptera: Formicidae).

Cantarelli

Costa²,

Oliveira³

et al. 2005

Ciênc. Florest.

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RESUMONeste trabalho, objetivou-se avaliar o efeito do formicida Citromax a base de timbó (Ateleia glazioviana) em diferentes doses no controle de Acromyrmex lundi, em campo nativo, no município de São Sepé, estado do Rio Grande do Sul. Foram analisados quatro tratamentos, constituídos por doses de 5g, 10g e 15g de "Citromax" e 10g de "Mirex-S" (sulfluramida 0,3%) por formigueiro. O delineamento experimental foi inteiramente casualizado com dez repetições, considerando cada formigueiro uma repetição. A eficiência foi avaliada no 1º, 5º, 10º, 15º e 20º dia após a aplicação dos tratamentos. Os resultados obtidos permitiram concluir que "Citromax" apresenta ação de choque, pois houve alto percentual de controle nos primeiros cinco dias. O controle de A. lundi mediante a utilização do formicida "Citromax", foi eficiente em todas as doses avaliadas, obtendo-se um percentual de controle superior a 85%. Não houve influência do tamanho do formigueiro em relação ao percentual de controle.Palavras-chave: insecta; formigas cortadeiras; formicida de origem vegetal. ABSTRACTThe objective of this study was the analysis of the effect of the formicide "Citromax", formulated with Ateleia glazioviana, in different doses on the control of Acromyrmex lundi, in native field in São Sepé county, Rio Grande do Sul, Brazil. Four treatments were analyzed, constituted of doses of 5, 10 and 15g of "Citromax" and 10g of "Mirex-S" (sulphluramide 0,3%) in each nest. The statistical design was completely randomized with 10 repetitions, considering each nest as one repetition. The effectiveness was evaluated in the 1 st , 5 th , 10 th , 15 th and 20 th day after treatment application. The obtained results allow to conclude that "Citromax" shows an impact action, because there was a high percentage of control in the first five days. The Acromyrmex lundi control due to "Citromax" formicide was efficient in all the evaluated doses, obtaining a control percentage up to 85%. The influence of net size was not observed in relation to the percentage control.Key words: insecta; leaf cutting ants; formicide from natural source. INTRODUÇÃOAs formigas cortadeiras destacam-se como insetos-praga causadores de dano econômico em culturas florestais, muitas vezes inviabilizando a implantação de novos povoamentos. De acordo com Grürzmacher et al. (2002), a espécie Acromyrmex lundi é uma das mais freqüentes, abundantes e dominantes na Depressão Central do Rio Grande do Sul. Quiran (1996) descreve que essa espécie corta sobretudo dicotiledôneas, porém com menor freqüência as espécies de monocotiledôneas em áreas cultivadas. É uma espécie amplamente difundida em áreas agroflorestais, possuindo uma grande capacidade de adaptação às trocas ambientais, sendo assim uma das espécies que mais preocupam em relação aos danos provocados dentro do gênero. Constróem ninhos dos mais variados tamanhos, de acordo com as condições encontradas.Os métodos de controle de formigas cortadeiras evoluíram ao longo do tempo, e uma das grandes,

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Eficiência de isca formicida aplicada sobre o monte de terra solta de ninhos de Atta sexdens rubropilosa (Hymenoptera: Formicidae)

Cited by 10 publications

References 5 publications

Managing leaf-cutting ants: peculiarities, trends and challenges

Managing leaf-cutting ants: peculiarities, trends and challenges

Effects of Diafenthiuron in Toxic Baits on Colonies of Leaf-cutting ants (Hymenoptera: Formicidae)

Efeito de diferentes doses do formicida “citromax” no controle de <i>Acromyrmex lundi</i> (Hymenoptera: Formicidae).

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