Plantas alimenticias alternativas del picudo del algodonero (Anthonomus grandis Boh.) (Coleoptera: Curculionidae) en la provincia de Formosa, Argentina: análisis palinológico del tracto digestivo

Cuadrado, Graciela Ana; Garralla, Silvina Susana

doi:10.1590/s0301-80592000000200006

Cited by 14 publications

(11 citation statements)

References 5 publications

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“…Additionally, pollen of many other plant families was found, such as Anacardiaceae, Chenopodiaceae, Amaranthaceae, Fagaceae, Malvaceae and Poaceae (former Gramineae). Similar results were reported by Jones & Coppedge (1996, 1999, also in the United States, and by Cuadrado & Garralla (2000) and Cuadrado (2002) in Argentina. In Brazil, where the boll weevil was introduced in the 1980s and it is still colonizing new habitats, studies developed in screen houses showed that this insect cannot complete development when fed on several Malvaceae species other than cotton (Lukefahr et al 1986, Gabriel 2002.…”

Section: Boll Weevil Samples Fluorescent Green Boll Weevilsupporting

confidence: 90%

Alternative food sources and overwintering feeding behavior of the boll weevil, Anthonomus grandis boheman (coleoptera: curculionidae) underthe tropical conditions of central Brazil

Ribeiro¹,

Sujii²,

Diniz³

et al. 2010

Neotrop. entomol.

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-The boll weevil causes serious damage to the cotton crop in South America. Several studies have been published on this pest, but its phenology and behavior under the tropical conditions prevailing in Brazil are not well-known. In this study the feeding behavior and main food sources of adult boll weevils throughout the year in Central Brazil was investigated. The digestive tract contents of insects captured in pheromone traps in two cotton fields and two areas of native vegetation (gallery forest and cerrado sensu stricto) were analyzed. The insect was captured all through the year only in the cerrado. It fed on pollen of 19 different plant families, on Pteridophyta and fungi spores and algae cysts. Simpson Index test showed that the cerrado provided greater diversity of pollen sources. In the beginning of the cotton cycle, the plant families used for pollen feeding were varied: in cotton area 1, the weevil fed on Poaceae (50%), Malvaceae and Smilacaceae (25% each); in cotton area 2 the pollen sources were Malvaceae (50%), Asteraceae (25%) and Fabaceae and Clusiaceae (25% each); in the cerrado they were Chenopodiaceae (67%) and Scheuchzeriaceae (33%). No weevils were collected in the gallery forest in this period. After cotton was harvested, the family Smilacaceae was predominant among the food plants exploited in all the study areas. These results help to explain the survivorship of adult boll weevil during cotton fallow season in Central Brazil and they are discussed in the context of behavioral adaptations to the prevailing tropical environmental conditions.

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Section: Boll Weevil Samples Fluorescent Green Boll Weevilsupporting

confidence: 90%

Alternative food sources and overwintering feeding behavior of the boll weevil, Anthonomus grandis boheman (coleoptera: curculionidae) underthe tropical conditions of central Brazil

Ribeiro¹,

Sujii²,

Diniz³

et al. 2010

Neotrop. entomol.

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“…Boll weevils have an evolutionary history with cotton that originated with the host shift from its Hampea ancestral host to Gossypium, the genera of the wild and domesticated cotton plants, early in the domestication process (Jones, 2001). Both genera, Hibiscus and Abelmoschus, belong to Malvacea family, and indeed several studies have also shown that boll weevil adults primarily feed on plants from the Malvaceae family (Cuadrado, 2002;Cuadrado and Garralla, 2000;Gabriel, 2002;Jones et al, 1993;Showler and Abrigo, 2007;Ribeiro et al, 2010). Probably, hibiscus and okra plants attracted and feed boll weevils because they are likely chemically and structurally more similar to cotton plants.…”

Section: Discussionmentioning

confidence: 99%

Survival and preference of cotton boll weevil adults for alternative food sources

et al. 2016

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Plants that have potential as alternative food source (floral nectar, pollen and plant tissues) to the boll weevil during the intercropping season were evaluated considering the prevalent conditions of Cerrado in the Central Brazil. Initially, we tested the nutritional adequacy for the survival of the insect of flower resource (pollen and nectar) provided by eight plant species (fennel, mexican sunflower, castor bean, okra, hibiscus, sorghum, pigeonpea and sunn hemp). Subsequently, we tested if the resources provided by the selected plants continued to be exploited by the boll weevil in the presence of cotton plant, its main food source average longevity of boll weevil adults was significantly longer when they were fed on hibiscus' flowers (166.6 ± 74.4) and okra flowers (34.7 ± 28.9) than when they fed on flowers of other six species. Subsequently, the preference of the boll weevil in the use of resources was compared between okra or hibiscus and cotton plants, in dual choice experiments. Boll weevils preferred plants of the three species in the reproductive stages than those in vegetative stages. Although the cotton plant in the reproductive stage was the most preferred plant of all, boll weevils preferred flowering okra and hibiscus than cotton at the vegetative stage.Keywords: Anthonomus grandis, Malvacea, okra, hibiscus. Sobrevivência e preferência para exploração de recursos de adultos do bicudo do algodoeiro ResumoPlantas que podem ser uma fonte potencial de recursos alimentares (néctar floral, pólen e tecidos vegetais) para o bicudo do algodoeiro durante a entressafra foram avaliadas, considerando as condições ambientais prevalentes na região de Cerrado do Brasil Central. Primeiro, testamos a adequação nutricional dos recursos (pólen e néctar) fornecidos por oito espécies de plantas (erva-doce, margaridão, mamona, quiabo, hibisco, sorgo, feijão guandu e crotalária) como único recurso alimentar para a sobrevivência do inseto. Posteriormente, nós avaliamos se os recursos fornecidos pelas plantas selecionadas continuaram a serem explorados pelo bicudo na presença do algodoeiro, seu recurso alimentar principal. A longevidade média do bicudo do algodoeiro foi significativamente maior quando eles foram alimentados com flores de hibisco (166,6 ± 74,4) e quiabo (34,7 ± 28,9) do que quando alimentados com flores das outras seis espécies. Em seguida, a preferência do bicudo no uso de recursos foi comparada contrastando o quiabo e o hibisco com o algodão, em experimentos de dupla escolha. Os bicudos preferiram as plantas das três espécies na fase reprodutiva em relação àquelas em estádios vegetativos. Embora a preferência por plantas de algodão na fase reprodutiva tenha sido maior, os bicudos preferiram plantas em floração de quiabo e hibisco quando estas foram contrastadas com o algodão na fase vegetativa.

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“…Na América do Sul destacam-se os trabalhos realizados na Argentina (CUADRADO; GARRALLA, 2000;CUADRADO, 2002) e, mais recentemente, no Brasil (RIBEIRO et al, 2010), para as condições do Cerrado do Distrito Federal, demonstrando que o bicudo se utiliza de grande diversidade de pólen de plantas como alternativa ao pólen do algodão.…”

Section: Introductionunclassified

Fontes Alternativas De Pólen Utilizadas Pelo Bicudo-Do-Algodoeiro Em Duas Regiões Produtoras De Algodão Na Bahia

et al. 2015

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RESUMO -O bicudo-do-algodoeiro (Anthonomus grandis Boheman) (Coleoptera: Curculionidae) é um dos principais fatores limitantes para a expansão da cultura do algodão. Ele apresenta diferentes aspectos biológicos e comportamentais que garantem seu sucesso na exploração do agroecossistema algodoeiro. O objetivo deste trabalho foi identificar os recursos alimentares utilizados pelo bicudo na safra e entressafra de cultivos de algodão localizados nos municípios de Iuiu e Correntina (BA) e em ambientes de Caatinga e Cerrado, contíguos aos algodoais, respectivamente. As coletas dos adultos foram realizadas no período de fevereiro a setembro/2013 por meio de armadilhas com feromônio. As amostras foram processadas para identificação dos tipos polínicos encontrados no aparelho digestivo dos insetos. Os resultados indicaram que a praga explora 22 famílias botâni-cas como fonte de alimento, das quais 16 na Caatinga e 5 no Cerrado. Nos bicudos coletados em algodão foram encontrados 8 gêneros botânicos em Iuiu e 10 em Correntina, sendo apenas três coincidentes aos dois cultivos (Angelonia, Mimosa e Myrcia sp.1). Grãos de Pólen de 26 gêneros de plantas foram identificados para Caatinga e 6 para o Cerrado, ocorrendo três gêneros comuns às duas áreas (Myrcia sp.2, Eucalyptus e Mimosa). O bicudo explora fontes alternativas de alimento nas principais regiões produtoras de algodão da Bahia, com destaque para a Caatinga, que apresenta maior quantidade de famílias e gêneros botânicos utilizados pela praga.Palavras chaves: Anthonomus grandis. Caatinga. Cerrado. Palinologia. Sobrevivência. ALTERNATIVE POLLEN SOURCES FOR BOLL WEEVIL IN TWO COTTON GROWING AREAS OF BAHIA STATEABSTRACT -Cotton boll weevil, Anthonomus grandis Boheman (Coleoptera: Curculionidae), is one of the most limiting factors for cotton crop expansion. It presents different biological and behavioral aspects that ensure its success on this agroecosystem. This research aimed to identify pollen sources used by this insect during harvest and intercrop periods of cotton cultivations in Iuiu and Correntina -BA, Brazil; moreover, evaluating Caatinga and Cerrado neighboring areas. Adult insect samplings were made from February to September of 2013, through pheromone traps. Samples were analyzed to identify the pollen types inside the digestive system of insects. The results indicated that the pest explores 22 botanical families as nourishment source, from which 16 in Caatinga and five in Cerrado. Regarding crop samples, eight genera were found in Iuiu and Correntina, being three found in both areas (Angelonia, Mimosa and Myrcia sp.1). Pollen from 26 genera were identified for Caatinga and six for Cerrado, with three genera in common for both (Myrcia sp.2, Eucalyptus, and Mimosa). The boll weevil uses alternative sources of food within the main cotton growing regions in Bahia State, highlighting the Caatinga with most of the botanical families and genera explored by the pest.

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Plantas alimenticias alternativas del picudo del algodonero (Anthonomus grandis Boh.) (Coleoptera: Curculionidae) en la provincia de Formosa, Argentina: análisis palinológico del tracto digestivo

Cited by 14 publications

References 5 publications

Alternative food sources and overwintering feeding behavior of the boll weevil, Anthonomus grandis boheman (coleoptera: curculionidae) underthe tropical conditions of central Brazil

Alternative food sources and overwintering feeding behavior of the boll weevil, Anthonomus grandis boheman (coleoptera: curculionidae) underthe tropical conditions of central Brazil

Survival and preference of cotton boll weevil adults for alternative food sources

Fontes Alternativas De Pólen Utilizadas Pelo Bicudo-Do-Algodoeiro Em Duas Regiões Produtoras De Algodão Na Bahia

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