Alexandre Specht

ORCID: 0000-0002-8921-0340
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About
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Research Areas
  • Insect Resistance and Genetics
  • Insect-Plant Interactions and Control
  • Lepidoptera: Biology and Taxonomy
  • Insect Pest Control Strategies
  • Plant and animal studies
  • Insect and Pesticide Research
  • Entomological Studies and Ecology
  • Insect behavior and control techniques
  • Insect and Arachnid Ecology and Behavior
  • Bee Products Chemical Analysis
  • Insect Pheromone Research and Control
  • Agricultural pest management studies
  • Biological Control of Invasive Species
  • Entomopathogenic Microorganisms in Pest Control
  • Phytochemistry Medicinal Plant Applications
  • Growth and nutrition in plants
  • Genetically Modified Organisms Research
  • Agricultural and Food Sciences
  • Banana Cultivation and Research
  • Hymenoptera taxonomy and phylogeny
  • Essential Oils and Antimicrobial Activity
  • Weed Control and Herbicide Applications
  • Insect Utilization and Effects
  • Soil Management and Crop Yield
  • Ecology and Vegetation Dynamics Studies

Brazilian Agricultural Research Corporation
2016-2025

Universidade de Caxias do Sul
2006-2023

Weatherford College
2023

Universidade Federal do Rio Grande do Sul
2023

Universidade de Brasília
2018-2023

Universidade do Sul de Santa Catarina
2002

Pontifícia Universidade Católica do Rio Grande do Sul
2001

The fall armyworm, Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae), is the most important noctuid pest in Americas and has recently become an invasive Africa. A detailed record of S. frugiperda's host plants essential to better understand biology ecology this pest, conduct future studies, develop Integrated Pest Management programmes. In study, we collected systematically arranged fragmented bibliographic information on feeding records. Furthermore, registered new records...

10.4001/003.026.0286 article EN African Entomology 2018-09-01

O objetivo deste trabalho foi descrever métodos para a caracterização morfológica e molecular de Helicoverpa armigera ampliar o registro ocorrência da praga no Brasil. As mariposas foram obtidas lagartas coletadas nas culturas algodão, milho soja, com uso armadilhas luminosas. coletas realizadas na Bahia, Distrito Federal, Mato Grosso Paraná. A identificação baseada genitália masculina análises das sequências dos genes mitocondriais do citocromo B região cox1-tRNALeu-cox2. comparada as...

10.1590/s0100-204x2013000600015 article PT cc-by Pesquisa Agropecuária Brasileira 2013-06-01

Abstract Hybridization between invasive and native species has raised global concern, given the dramatic increase in range shifts pest outbreaks due to anthropogenic dispersal. Nevertheless, secondary contact sister lineages of local provides a natural laboratory understand factors that determine introgression maintenance or loss barriers. Here, we characterize early evolutionary outcomes following Helicoverpa armigera H. zea Brazil. We carried out whole-genome resequencing moths from Brazil...

10.1093/molbev/msaa108 article EN cc-by-nc Molecular Biology and Evolution 2020-04-23
Walter A. Boeger Michel P. Valim Hussam Zaher José Albertíno Rafael Rafaela Campostrini Forzza and 95 more Alexandre Reis Percequillo Cristiana S. Serejo André Rinaldo Senna Garraffoni Adalberto J. Santos Adam Ślipiński Adelita M. Linzmeier Adolfo R. Calor Adrian Antonio Garda Adriano B. Kury Agatha C.S. Fernandes Aisur Ignacio Agudo-Padrón Alberto Akama ALBERTO MOREIRA DA SILVA NETO Alejandro Londoño Burbano A. R. E. A. N. De MENEZES Alessandre Pereira-Colavite ALEXANDER ANICHTCHENKO Alexander Charles Lees Alexandra Maria Ramos Bezerra Alexandre Cruz Domahovski Alexandre Dias Pimenta Alexandre Luis Padovan Aleixo Alexandre Pires Marceniuk Alexandre Souza de Paula Alexandre Somavilla Alexandre Specht Alexssandro Camargo Alfred F. Newton Áurea dos Santos Silva Aline B. dos Santos Aline Daniele Tassi Allan Carelli Aragão Allan Paulo Moreira Santos Álvaro Esteves Migotto Amanda Cruz Mendes Amanda Ferreira Cunha Amazonas Chagas Ana A.T. de Sousa Ana Carolina Pavan ANA C.S. ALMEIDA Ana L. B. G. Peronti Ana Lucia Henriques-Oliveira Ana Lúcia da Costa Prudente Ana Lúcia Miranda Tourinho Ana Maria Pes Ana Paula Carmignotto Ana Paula Gonçalves da Silva Wengrat Ana Paula S. Dornellas Anamaria Dal Molin Anderson Puker André C. Morandini André da S. Ferreira André L. Martins André Morgado Esteves André S. Fernandes André Silva Roza Andreas Köhler Andressa Paladini Andrey José de Andrade Ângelo Parise Pinto A. Salles Anne Isabelley Gondim A. Cecília Z. Amaral Antonio Arnovis Agudelo Rondón Antônio D. Brescovit Antônio C. Lofego Antônio Carlos Marques A. Macedo Artur Andriolo Augusto Loureiro Henriques A. Laverde Júnior Aurino F. de Lima Ávyla Régia de Albuquerque Barros Ayrton do R. Brito Bárbara Louise Valentas Romera Beatriz M.C. de Vasconcelos Benjamin W. Frable Bernardo F. Santos Bernardo R. Ferraz Brunno B. Rosa Brunno Henrique Lanzellotti Sampaio Bruno Cavalcante Bellini Bruno Clarkson Bruno De Oliveira Caio C.D. Corrêa Caleb Califre Martins Camila Fediuk de Castro-Guedes Camilla Souto Carla de Lima Bicho Carlo M. Cunha Carlos Alberto De Moura Barboza Carlos Alberto Santos de Lucena Carlos Barreto Carlos D.C.M. de Santana Carlos Eduardo Agne

10.1590/s1984-4689.v41.e24005 article EN cc-by Zoologia (Curitiba) 2024-01-01

The taxonomy of the hitherto unplaced taxon Porosagrotis carolia Schaus, 1929 is evaluated and name taken out taxonomic limbo combined with Feltia Walker, 1856. comb. nov., described from a single female specimen, redescribed, including first description male. Head, thorax its appendages, male genitalia are illustrated through photographs line drawings; holotype distribution map for species provided. Additionally, spatio-temporal occurrence in Rio Grande do Sul was assessed by monthly...

10.11646/zootaxa.4363.3.7 article EN Zootaxa 2017-12-12

The rivorum species-group of the genus Leucania (Noctuidae: Noctuinae: Leucaniini) is circumscribed and taxonomically revised, with inclusion three species. New taxonomic hypotheses were achieved through morphological analysis about 250 specimens allied to type material L. Guenée, 1852; pampa Schaus, 1894, stat. rev.; Neleucania multistria Köhler, 1947, rev., last two resurrected from synonymy Dargida lithophilus (Butler, 1882), respectively. Adult habitus morphology genitalia support...

10.11646/zootaxa.4711.3.6 article EN Zootaxa 2019-12-16

This work has the objective to catalogue information of Chrysodeixis includens (Walker, [1858]) (Lepidoptera: Noctuidae: Plusiinae) host plants. The list plants comprehends new reports in Brazil and from literature review around world. It is listed 174 which are 39 botanic families. higher number C. Asteraceae (29), Solanaceae (21), Fabaceae (18) Lamiaceae (12).

10.1016/j.rbe.2015.09.002 article EN cc-by-nc-nd Revista Brasileira de Entomologia 2015-10-01

Every year the area of transgenic maize planting in Brazil expands, however, our knowledge fauna herbivorous insects associated with this genetically modified crop is restricted. In work we report for first time occurrence Leucania rawlinsi Adams, 2001 and L. senescens (Möschler, 1890) (Lepidoptera: Noctuidae) larvae feeding on Bt non-Bt silk, as well their braconid tachinid larval parasitoids. order to facilitate specific identification these species future studies, redescriptions adults...

10.11646/zootaxa.4604.3.3 article EN Zootaxa 2019-05-15

The taxonomy of five South American species Dargida Walker currently allocated in Leucania Ochsenheimer (four species) and Lasionycta Aurivillius (one is revised. roseilinea (Köhler, 1947), phaeoneura Hampson, 1913, mocoides Dognin, 1897, alboradiata (Hampson, 1905) radiata 1966), are here combined with the genus for first time (comb. nov.). Two new synonyms proposed, roseilineoides Poole, 1989 an objective junior synonym Borolia Köhler, 1947 (syn. nov.) (ICZN 51.4), B. lilloana a subjective...

10.11646/zootaxa.4853.2.3 article EN Zootaxa 2020-09-22

This study presents registers of Helicoverpa armigera (Hübner) occurrence to assess its spatial and temporal distribution in Brazil. We used data from collections, especially the Southern Region, systematic collections Rio Grande do Sul, occasional caterpillars adults different regions Brazil, as well literature registers. conclude that introduction H. Brazil probably occurred before October 2008. also register August 2012 was already present extreme southern part (Rio Sul) northern (Amapá)

10.1016/j.rbe.2015.09.008 article EN cc-by-nc-nd Revista Brasileira de Entomologia 2015-12-19

This study aimed to detail the temporal and morphological parameters of immature stages southern armyworm Spodoptera eridania (Stoll, 1782) with larvae feed on artificial diet, under controlled conditions (25 ± 1°C, 70 10% relative humidity 14-h photophase) gather information about their larval host plants. The viability egg, larval, pupal, prepupal was 97.82, 93.62, 96.42, 97.03%, respectively. average duration pre–pupal 4.00, 16.18, 1.58, 9.17 d, During stage, 43.44% females passed through...

10.1093/jisesa/ieu100 article EN cc-by-nc Journal of Insect Science 2014-01-01

Metarhizium rileyi is an entomopathogenic fungus of Lepidoptera and infects many noctuids, which are key pests agricultural crops. In this literature review, we summarise the state art use potential biological pest control agent. Pathogen–host interactions include conidial adhesion, invasion process, enzymatic activity. Environmental factors that impact productivity associated with such as environment temperature, humidity, availability spores discussed. Recent research has focused on...

10.1080/09583157.2017.1391175 article EN Biocontrol Science and Technology 2017-10-23

The fall armyworm, Spodoptera frugiperda (J. E. Smith, 1797), is the most important noctuid pest in Americas and has recently become an invasive Africa India. Having a detailed standardized record of biology larval development S. will be critical to further studies on integrated management, toxicology, applied ecology. This study reports temporal morphological parameters immature stages for larvae fed artificial diet under controlled conditions (25±1 °C, 70±10%...

10.5539/jas.v11n8p76 article EN Journal of Agricultural Science 2019-06-02

Automated species identification based on data produced with metabarcoding offers an alternative for assessing biodiversity of bulk insect samples obtained traps. We used a standard two-step PCR approach to amplify 313 bp fragment the barcoding region mitochondrial COI gene. The products were sequenced Illumina MiSeq platform, and OTUs production taxonomic identifications performed customized pipeline database. DNA in procedures was extracted directly from preservative ethanol automatic...

10.1002/ece3.6042 article EN cc-by Ecology and Evolution 2020-02-25

A new species of Feltia Walker, 1856, pala Dias, Specht & San Blas sp. nov., is described from the southern Brazilian highlands. The compared with gypaetina (Guenée, 1852), a neglected similar which occurs in lowland Brazil and Argentina, was recently transferred Agrotis Ochsenheimer, 1816. redescribed, its taxonomy reviewed. pseudoplecta Snellen, 1879 removed junior subjective synonymy Guenée, 1852 recognized provisionally as synonym Noctua lutescens Blanchard, (syn. nov.). Sampling...

10.11646/zootaxa.5609.3.2 article EN Zootaxa 2025-03-20

ABSTRACT Viticulture has been expanded to different producing regions of Brazil. Grape producers in the southeastern and southern Brazil have consistently reported incidence a caterpillar damaging trunk branches vine plants. Larvae were reared laboratory, species Roseala tessellatus (Herrich-Schäffer, [1854]) (Lepidoptera: Hepialidae) was subsequently identified as responsible for damage. This study presents information on geographic distribution this pest Brazil, damage caused plants,...

10.1590/1806-9665-rbent-2024-0096 article EN cc-by Revista Brasileira de Entomologia 2025-01-01

The corn earworm Helicoverpa zea (Boddie) and the old world bollworm armigera (Hübner) (Lepidoptera: Noctuidae) are allopatric species occur in important agricultural crops. In maize, both tend to infest ear. introduction of H. Brazil has created a new scenario, where these might cohabit interact with one another, affecting prevalence each agroecosystem, integrated pest management, insect resistance management. this study, larval occurrence proportion maize was assessed three regions during...

10.1371/journal.pone.0167182 article EN public-domain PLoS ONE 2016-12-01

This study aimed to detail the temporal and morphological parameters of immature stages Spodoptera albula (Walker 1857) under controlled conditions (25 ± 1°C, 70 10% RH 14 hour photophase) gather information about their larval host plants. For this purpose, a new rearing method artificial diet was employed validated. The viability egg, larval, pupal pre-pupal 94.54, 97.33, 93.84 92.34%, respectively. average duration 4.14, 16.37, 1.69, 9.34 days, During stage, 80.85% females 93.99% males...

10.1590/s0001-37652013000100013 article EN cc-by Anais da Academia Brasileira de Ciências 2013-03-01

The soybean looper (SBL), Chrysodeixis includens (Walker), is one of the most important pests in Brazil. MON 87701 × 89788 expressing Cry1Ac has been recently deployed Brazil, providing high levels control against primary lepidopteran pests. To support insect resistance management (IRM) programmes, baseline susceptibility SBL to was assessed, and allele frequency estimated on basis an F2 screen.The toxicity (LC50 ) ranged from 0.39 2.01 µg mL(-1) diet among all field populations collected...

10.1002/ps.4191 article EN Pest Management Science 2015-11-19

Chrysodeixis includens (Walker, [1858]) is currently the main plusiine pest in Americas, not only because of damage caused to soybean, but also with several crop species a broad geographical range. However, its population dynamics still poorly understood, despite outbreak records that are common across different locations Americas. The current study aimed at identifying phenological patterns C. emphasizing differences among three years sampling effort an intercropping area Brazilian Savanna....

10.1016/j.rbe.2017.06.006 article EN cc-by-nc-nd Revista Brasileira de Entomologia 2017-07-16

The goal of this study was to detail the temporal and morphological parameters immature stages Spodoptera cosmioides (Walker, 1858) gather information about their larval host plants. Larvae were reared on artificial diet under controlled conditions (25 ± 1°C, 70 10% RH 14 hour photophase). viability eggs, larvae (pre-pupae period inclusive) pupae 98.97, 97.33, 97.95 94.76%, respectively. average duration egg, larval, pre-pupal pupal 3.82, 19.24, 3.20 14.81 days, A small proportion females...

10.1590/s1984-4689zool-20160053 article EN cc-by Zoologia (Curitiba) 2016-01-01

Spodoptera cosmioides (Walker, 1858) is an economically relevant polyphagous moth, widely distributed in the Neotropics and part of latifascia 1856) species group. In this study, we used extensive sampling from different regions to describe spatial distribution S. Brazil evaluate its variability both morphological molecular perspectives. Variable coloration several similarities were found among congeners complex, diverging each 0.5 3.5% mitochondrial DNA. The genetic divergence at level was...

10.1590/1806-9665-rbent-2023-0106 article EN cc-by Revista Brasileira de Entomologia 2024-01-01
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