Hosts and Seasonal Activity of the Boll Weevil (Coleoptera: Curculionidae) in Tropical and Subtropical Habitats of Northeastern Mexico

Jones, Robert W.; Cate, James R.; Mernandez, Enrique Martinez; Navarro, Refugio Treviño

doi:10.1093/jee/85.1.74

Cited by 37 publications

(32 citation statements)

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“…However, the physiological reduction in reproduction does not keep boll weevils from moving and searching for food to survive until the cotton fields have been planted again and squares begin to form (Jones et al, 1992;Hardee et al, 1999;Showler & Abrigo, 2007;Ribeiro et al, 2010;Macêdo et al, 2015). In addition, these areas may possibly provide shelter for adult boll weevils to protect themselves against adverse conditions, such as low humidity and high temperatures, both typical of this region in the cotton fallow period.…”

Section: Resultsmentioning

confidence: 99%

Survival pattern of the boll weevil during cotton fallow in Midwestern Brazil

Pires

Pimenta

Mata

et al. 2017

Pesq. agropec. bras.

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-The objective of this work was to determine the survival pattern of the cotton boll weevil during fallow in Midwestern Brazil. The percentage of adults that remained in the cotton reproductive structures, the percentage of adults searching for shelters, and the longevity of adults fed on pollen and nectar as alternative food sources were determined. For this, four populations were sampled in cotton squares and bolls, totaling 11,293 structures, from 2008 to 2012. The emergency of cotton weevil adults was monitored from the collection of the structures until the next cotton season. In the laboratory, newly-emerged adults were fed on hibiscus or Spanish needle, and their life span was monitored individually. Most adults (85.73%) left the reproductive structures, regardless of the cotton plant phenology, up to 49 days after the structures were collected. One individual (0.0002%) from 5,544 adults was found alive after the fallow period. The diet with hibiscus and Spanish needle provided adult longevity of 76±38 days, which was enough time for adults to survive during the fallow period. Most of the boll weevils leave the cotton structures at the end of harvest, survive using alternative food sources, and do not use cotton plant structures as shelter during the legal cotton fallow period in Midwestern Brazil.Index terms: Anthonomus grandis, Gossypium hirsutum, alternative food, cotton bolls. Padrão de sobrevivência do bicudo-do-algodoeiro durante o pousio na região Centro-Oeste do BrasilResumo -O objetivo deste trabalho foi determinar o padrão de sobrevivência do bicudo-do-algodoeiro durante o pousio no Centro-Oeste do Brasil. Foram determinadas as percentagens de adultos das populações que permaneceram nas estruturas reprodutivas do algodoeiro, as percentagens de adultos que saíram para os refúgios, e a longevidade dos adultos alimentados com pólen e néctar como fontes de alimentos alternativos. Para tanto, foram amostradas quatro populações em botões florais e maçãs do algodoeiro, que totalizaram 11.293 estruturas, de 2008 a 2012. A emergência de adultos do bicudo-do-algodoeiro foi monitorada desde a coleta das estruturas até a próxima safra de algodão. Em laboratório, adultos recém-emergidos foram alimentados com hibisco ou picão, e sua longevidade foi monitorada individualmente. A maioria dos adultos (85,73%) saiu das estruturas reprodutivas, independentemente da fenologia do algodoeiro, até 49 dias após as estruturas terem sido coletadas. Um indivíduo (0,0002%) entre 5.544 adultos foi encontrado vivo após o período da entressafra. A dieta de hibisco e picão permitiu uma longevidade de 76±38 dias, tempo suficiente para manter os adultos vivos durante a entressafra. A maioria dos bicudos-de-algodoeiro deixa as estruturas reprodutivas do algodoeiro no final da colheita, sobrevive com alimento alternativo e não usa as estruturas da planta como abrigo durante o período legal de pousio na região Centro-Oeste do Brasil.Termos para indexação: Anthonomus grandis, Gossypium hirsutum, alimento alternativo, maças ...

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Section: Resultsmentioning

confidence: 99%

Survival pattern of the boll weevil during cotton fallow in Midwestern Brazil

Pires

Pimenta

Mata

et al. 2017

Pesq. agropec. bras.

View full text Add to dashboard Cite

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“…Thus, characterization of boll weevil dispersal capacity and patterns has become a pressing issue, but studying long-distance movement in this species, as in most insects, is fraught with difficulties. Range expansion records (Hunter & Coad, 1923;Culin et al, 1990;Lukefahr, Barbosa & Sabrinho, 1994), markrelease-recapture experiments (Johnson et al, 1975;Guerra, 1988;Raulston et al, 1996), and pheromone trapping (Jones et al, 1992;Spurgeon et al, 1997) indicate that boll weevils can disperse 100-300 km, but the frequency and magnitude of dispersal over such distances and beyond cannot be adequately addressed with such data.…”

Section: Introductionmentioning

confidence: 99%

Molecular genetic variation of boll weevil populations in North America estimated with microsatellites: Implications for patterns of dispersal

Kim

Sappington

2006

Genetica

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The boll weevil (Anthonomus grandis Boheman) is an insect pest of cotton that underwent a well-documented range expansion across the southeastern U.S. from Mexico beginning about 110 years ago. Eleven microsatellite loci were surveyed to infer the magnitude and pattern of genetic differentiation among boll weevil populations from 18 locations across eight U.S. states and northeast Mexico. Estimates of genetic diversity (allelic diversity and heterozygosity) were greater in Southern than Northern populations, and were greater in the west than the east among Northern populations. Boll weevil populations were genetically structured as a whole across the geographic range sampled, with a global F ST of 0.241. South-central populations exhibit classic isolation by distance, but evidence suggests that populations within the Eastern and Western regions have not yet reached genetic equilibrium. Gene flow appears to be relatively high among populations within the Eastern region. Population assignment data and estimates of gene flow indicate that migration between locations separated by < 300 km is frequent. The database of microsatellite genotypes generated in this study now makes it possible, through population assignment techniques, to identify the most likely geographic source of a boll weevil reintroduced to an eradication zone, which will help action agencies decide the most appropriate mitigation response. RightsWorks produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted. Key words: boll weevil, dispersal, eradication, gene flow, genetic variation, invasive species, microsatellites, migration, molecular markers, population assignment AbstractThe boll weevil (Anthonomus grandis Boheman) is an insect pest of cotton that underwent a welldocumented range expansion across the southeastern U.S. from Mexico beginning about 110 years ago. Eleven microsatellite loci were surveyed to infer the magnitude and pattern of genetic differentiation among boll weevil populations from 18 locations across eight U.S. states and northeast Mexico. Estimates of genetic diversity (allelic diversity and heterozygosity) were greater in Southern than Northern populations, and were greater in the west than the east among Northern populations. Boll weevil populations were genetically structured as a whole across the geographic range sampled, with a global F ST of 0.241. Southcentral populations exhibit classic isolation by distance, but evidence suggests that populations within the Eastern and Western regions have not yet reached genetic equilibrium. Gene flow appears to be relatively high among populations within the Eastern region. Population assignment data and estimates of gene flow indicate that migration between locations separated by <300 km is frequent. The database of microsatellite genotypes generated in this study now makes it possible, through population assignment techniques, to identify the most likely geographic sou...

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“…Nevertheless, wind-aided dispersal of boll weevils was evident in the increased rate of range expansion through the southeastern U.S. in years with hurricanes and tropical storms (Hinds, 1916;Culin et al, 1990). Circumstantial evidence from collection data suggested dispersal events of 41 km (Beckham and Morgan, 1960), 72 km (Davich et al, 1970), 80 km (Pierce et al, 2001), 97 and 160 km (Lukefahr et al, 1994), at least 145 (but probably 241) km (Spurgeon et al, 1997), and 190 km (Jones et al, 1992). Recapture of marked boll weevils provided direct evidence for dispersal of 72 km (Johnson et al, 1976) and 272 km (Guerra, 1988).…”

Section: Boll Weevil Dispersal and Eradication-backgroundmentioning

confidence: 99%

Population genetics strategies to characterize long-distance dispersal of insects

Kim

Sappington

2013

Journal of Asia-Pacific Entomology

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Population genetics strategies offer an alternative and powerful approach for obtaining information about long-distance movement, and have been widely used for examining patterns and magnitude of insect dispersal over geographic and temporal scales. Such strategies are based on the principle that genetic divergence between local populations reflects the interplay between genetic drift and gene flow, and thus can function as an indicator of dispersal capacity. Relatively new approaches for inferring population history are widely applicable for documenting introduction routes of invasive or quarantine species. These approaches are based on genetic variability calculated from changes in gene frequency of subpopulations, measured using molecular genetic markers. Inferences from population genetics can supplement and corroborate conventional observational approaches for characterizing insect dispersal and have provided important clues to many questions raised in the field of behavior and ecology of insects. Here, we summarize our work on the boll weevil as a case study to illustrate the kinds of information on dispersal capacity and dispersal patterns that can be obtained from population genetics techniques that would be difficult or impossible to acquire in other ways. Then we provide examples of how the molecular markers and population genetics tools have been applied to answer immediate questions of relevance to eradication program managers. Though the latter are idiosyncratic to this particular pest, they demonstrate the kinds and range of problems that can be addressed in other systems through application of population genetics strategies. RightsWorks produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted. Population genetics strategies offer an alternative and powerful approach for obtaining information about long-distance movement, and have been widely used for examining patterns and magnitude of insect dispersal over geographic and temporal scales. Such strategies are based on the principle that genetic divergence between local populations reflects the interplay between genetic drift and gene flow, and thus can function as an indicator of dispersal capacity. Relatively new approaches for inferring population history are widely applicable for documenting introduction routes of invasive or quarantine species. These approaches are based on genetic variability calculated from changes in gene frequency of subpopulations, measured using molecular genetic markers. Inferences from population genetics can supplement and corroborate conventional observational approaches for characterizing insect dispersal and have provided important clues to many questions raised in the field of behavior and ecology of insects. Here, we summarize our work on the boll weevil as a case study to illustrate the kinds of information on dispersal capacity and dispersal patterns that can be obtained from population genetics tech...

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Hosts and Seasonal Activity of the Boll Weevil (Coleoptera: Curculionidae) in Tropical and Subtropical Habitats of Northeastern Mexico

Cited by 37 publications

References 0 publications

Survival pattern of the boll weevil during cotton fallow in Midwestern Brazil

Survival pattern of the boll weevil during cotton fallow in Midwestern Brazil

Molecular genetic variation of boll weevil populations in North America estimated with microsatellites: Implications for patterns of dispersal

Population genetics strategies to characterize long-distance dispersal of insects

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