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      DISTRIBUIÇÃO DE SUBSTRATOS NAS COLÔNIAS DE Atta laevigata (F. Smith, 1858) (HYMENOPTERA: FORMICIDAE) Translated title: SUBSTRATE DISTRIBUTION IN Atta laevigata (F. Smith, 1858) COLONIES (HYMENOPTERA: FORMICIDAE)

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          Abstract

          Estudou-se a distribuição de substratos em duas colônias adultas (L-1 e L-2) da saúva Atta laevigata (F. Smith, 1858), com áreas de terra solta de 26,10 e 31,30 m2. Alguns orifícios de abastecimento foram mapeados utilizando-se iscas de canudinhos plásticos impregnados com polpa cítrica. Depois selecionou-se três orifícios para o ninho L-1 e um orifício para o ninho L-2, onde foram colocadas iscas cítricas impregnadas com corantes azul, amarelo e vermelho e amarelo misturado com grãos de milho, respectivamente. Após 24 horas da colocação das iscas, as colônias foram mortas e escavadas totalmente. Durante a escavação, registrou-se a presença ou ausência dos corantes nas câmaras com cultura de fungo. Observou-se, neste trabalho, que as iscas com corantes distribuíram-se em todos os setores para os ninhos L-1 e L-2 e em todas as profundidades para o ninho L-1. No entanto, em L-2 encontrou-se corante nas profundidades de 1 a 4m, independentemente do local em que foram colocadas, indicando que as iscas formicidas colocadas em apenas um orifício de abastecimento da colônia, podem ser distribuídas uniformemente pelo ninho.

          Translated abstract

          Substrate distribution in was studied two adult leaf cutting ant Atta laevigata (F. Smith, 1858) colonies (L-1 and L-2), with 26.10 and 31.30 m2 areas of refuse soil. Some nest holes were mapped through the use of baits made of small plastic straws soaked with citric pulp. Three holes, equidistant from one another, were then selected for nest L-1, and a single hole in nest L-2. Blue-, yellow - and red-colored citric baits, and yellow baits plus corn, were placed in nests L-1 and L-2, respectively. After 24 hours from the deposition of the baits, the colonies were killed and totally excavated. During digging, the presence or absence of dye baits in the chambers containing fungi, was registered. It was observed that the baits were distributed in all sectors of L-1 and L-2 nests and in all depths only for L-1. However, the dyed baits of L-2 nest were detected from 1 to 4 meters deep, independently of the places where the baits were disposed. Thus, it can be concluded that toxic baits placed in a single supply-hole of a colony are uniformly distributed inside the nest.

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          Distribuição de substrato em colônia de Atta capiguara Gonçalves, 1944 (Hymenoptera, Formicidae)

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            Contribuição para. o conhecimento da "saúva de vidro" Atta laevigata Fred. Smith, 1858

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              A simple method for determining location of foraging ant nests using leaf cutting ants as a model

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                Author and article information

                Journal
                sa
                Scientia Agricola
                Sci. agric. (Piracicaba, Braz.)
                Escola Superior de Agricultura "Luiz de Queiroz" (Piracicaba, SP, Brazil )
                1678-992X
                1999
                : 56
                : 2
                : 465-469
                Affiliations
                [01] Botucatu SP orgnameUNESP orgdiv1 Depto. de Defesa Fitossanitária, FCA
                Article
                S0103-90161999000200029 S0103-9016(99)05600229
                9f0a978a-5821-4609-8adf-3bfa4ceb44b5

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 20 August 1998
                : 03 March 1998
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 7, Pages: 5
                Product

                SciELO Brazil

                Categories
                Artigos

                iscas formicidas,saúvas,insetos,ninhos,nests,insects,leaf cutting ants,formicide baits

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