Consulta: subjectFacets:"Velvetbean caterpillar"
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Data/hora: 02/06/2024 00:49:47

Field efficacy of the nucleopolyhedrovirus of Anticarsia gemmatalis Hübner (Lepidoptera: Noctuidae): effect of formulations, water pH, volume and time of application, and type of spray nozzle
Provedor de dados: Neotropical Entomology
Autores: SILVA,MAURO TADEU BRAGA; MOSCARDI,FLÁVIO.
The efficacy of the nucleopolyhedrovirus of Anticarsia gemmatalis Hübner (AgMNPV) was evaluated in relation to different application parameters of this biological insecticide, to elucidate some problems of its low efficacy in certain regions in Brazil, mainly in the state of Rio Grande do Sul (RS). Each experiment was conducted during four consecutive soybean seasons (1994/95 to 97/98), in Cruz Alta -- RS, to evaluate the following parameters on AgMNPV field efficacy: available commercial formulations of the virus; pH of the viral aqueous suspension; spray volume; application time; spray nozzle type; and the mixture of the virus with mineral oil. Each plot consisted of 28 soybean rows of 10 m in length, spaced of 40 cm. The statistical design was the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Velvetbean caterpillar; Biological control; Baculovirus; Soybean.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2002000100011

Seleção de genótipos resistentes de amendoinzeiro a Anticarsia gemmatalis Hübner (Lepidoptera: Noctuidae) com base em análises multivariadas
Provedor de dados: Neotropical Entomology
Autores: Pitta,Rafael M; Boiça Jr,Arlindo L; Jesus,Flávio G de; Tagliari,Sônia R A.
The velvetbean caterpillar Anticarsia gemmatalis Hübner attacks peanut leaves, and the use of resistant varieties has directly contributed to ecological and economic aspects of pest control. The aim of this work was to select resistant peanut genotypes to A. gemmatalis using cluster analyses (dendogram obtained by Ward's methods and K-means) and Principal Components analysis for data interpretation. The evaluated genotypes were: IAC 5, IAC 8112, IAC 22 and IAC Tatu ST with upright growth habit, and IAC 147, IAC 125, IAC Caiapó and IAC Runner 886 with runner growth habit, and soybean genotype BR 16 as a susceptible control. The biological parameters: leaf consumption, larval (4º instar) and pupal (24h old) weight, larval and pupal development time and adult...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Host plant resistance; Arachis hypogea; Velvetbean caterpillar; Biological parameter.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000200018

Do different casein concentrations increase the adverse effect of rutin on the biology of Anticarsia gemmatalis Hübner (Lepidoptera: Noctuidae)?
Provedor de dados: Neotropical Entomology
Autores: Salvador,Mariana C; Boiça Jr,Arlindo L; Oliveira,Maria C N De; Graça,José P Da; Silva,Débora M Da; Hoffmann-Campo,Clara B.
The flavonoid rutin is recognized as playing an important role in the protection of plants against lepidopterans. Bioassays with this compound are generally carried out using artificial diets. Proteins of high energy value, such as casein, are important ingredients of insect artificial diets as a source of essential amino acids. However, such proteins can generally increase the allelochemical activity. Our objective was to evaluate the effects of rutin on larvae of the velvetbean caterpillar Anticarsia gemmatalis Hübner by incorporating this allelochemical into diets with different concentrations of casein. Three casein concentrations (0, 7 g, or 14 g) combined with none, 0.65%, or 1.30% of rutin were added to the rearing diet and offered to the larvae...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flavonoid; Velvetbean caterpillar; Biological parameter.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000500017

Survivorship, larval development and pupal weight of Anticarsia gemmatalis (Hübner) (Lepidoptera: Noctuidae) feeding on potential leguminous host plants
Provedor de dados: Neotropical Entomology
Autores: Panizzi,Antônio R.; Oliveira,Lenita J.; Silva,Jovenil J.
In Brazil, the velvetbean caterpillar Anticarsia gemmatalis Hübner is multivoltine. Several overlapping generations occur with larvae feeding on alternate host plants in areas of warmer temperatures. In this study, the survivorship and development of A. gemmatalis larvae were evaluated on 17 species of cultivated and non-cultivated legumes in laboratory conditions. Larval survivorship on summer legumes varied from 91% on soybean to 5% on showy crotalaria and on velvetbean. On winter legumes, survivorship of A. gemmatalis larvae varied from 90% on white lupin to 25% on common vetch. All larvae fed on yellow lupin died during early development. On non-cultivated summer legumes, 70% of the larvae on Indigofera suffruticosa Millsp., and 55% on I. truxillensis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Velvetbean caterpillar; Host plant; Legume; Soybean; Glycine max.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2004000500004

Morphological study of the hindgut in larvae of Anticarsia gemmatalis Hübner(Lepidoptera: Noctuidae)
Provedor de dados: Neotropical Entomology
Autores: Levy,Sheila M.; Falleiros,Ângela M.F.; Moscardi,Flávio; Gregório,Elisa A.; Toledo,Luis A.
The velvetbean caterpillar (Anticarsia gemmatalis Hübner) has great economical interest as it affects the soybean crop worldwide. This work describes the morphology of the hindgut in A. gemmatalis larvae emphasizing their histological aspects. Distinct morphological regions, identified as pylorus, ileum, colon and rectum, constitute the hindgut of A. gemmatalis. A thin cuticular intima, a simple epithelium and muscular layer compose the hindgut wall, independent of the region. Microspines project from the cuticular intima in the posterior interstitial ring, between the midgut and the hindgut, and the posterior pyloric region. A single circular layer of large fibers, differing from the other hindgut regions that present two layers of muscular fibers, forms...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digestive tube; Histology; Velvetbean caterpillar; Insect.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2004000400005

Natural parasitism in eggs of Anticarsia gemmatalis Hübner (Lepidoptera, Noctuidae) by Trichogramma spp. (Hymenoptera, Trichogrammatidae) in Brazil
Provedor de dados: Revista Brasileira de Entomologia
Autores: Avanci,Marion R. F.; Foerster,Luís A.; Cañete,Carolina L.
Field surveys were carried during four soybean seasons in Southern Brazil to evaluate the occurrence of parasitoids in eggs of Anticarsia gemmatalis Hübner, 1818 and their incidence along the crop season. Eggs were collected by visual search on soybean leaves and from plants kept inside cages where A. gemmatalis moths were allowed to lay eggs. Trichogramma acacioi Brun, Moraes &amp;amp; Soares, 1984 was recorded for the first time in eggs of A. gemmatalis and the citations in the literature of Trichogramma lasallei Pinto, 1998 in Brazil where based on the material collected in this survey. Apart from these species, Trichogramma pretiosum Riley, 1879, Trichogramma rojasi Nagaraja &amp;amp; Nagarkatti, 1973 and Trichogramma atopovirilia Oatman &amp;amp;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Soybeans; Velvetbean caterpillar.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262005000100017

Biology of Anticarsia gemmatalis on soybean genotypes with different degrees of resistance to insects
Provedor de dados: Scientia Agricola
Autores: Fugi,Cristina Gomes Quevedo; Lourenção,André Luiz; Parra,José Roberto Postali.
A knowledge of the mechanisms of resistance present in genetic materials should help breeding programs in developing cultivars resistant to insects. The biology of Anticarsia gemmatalis Hübner (Lepidoptera: Noctuidae) was studied on leaves of four soybean genotypes with different degrees of resistance to insects. The genotypes evaluated were cultivars IAC 17 and IAC 24, resistant to defoliators and stink bugs, line PI 229358, a source of multiple resistance to insects and used as parent in various lines selected for resistance to A. gemmatalis, and 'IAC PL-1', the susceptible control. The experiments were carried out in the laboratory, under controlled conditions of temperature (25 ± 2ºC), relative humidity (60 ± 10%) and photoperiod (14h). First instar...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; Velvetbean caterpillar; Host plant resistance.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000100006

Interactions among insect-resistant soybean genotypes extracts with populations of Anticarsia gemmatalis Hübner (Lepidoptera: Noctuidae) susceptible and resistant to its nucleopolyhedrovirus
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: Piubelli,Giorla C.; Moscardi,Flávio; Hoffmann-Campo,Clara B.
Anticarsia gemmatalis nucleopolyhedrovirus (AgMNPV) is being used in Brazil as a biological insecticide. Host plant resistance of soybean to insects is been searched for and some authors have mentioned the interference of plant chemistry in virus efficiency. Interactions among soybean extracts of genotypes used as a source of resistance (PI 274454 and PI 227687) with different AgMNPV concentrations in populations of A. geatalis susceptible (S) and resistant (R) to the virus were studied at laboratory condition. Higher mortality was observed when larvae fed on diets with extracts of the soybean genotypes compared with those fed on a plain diet (control). The mean lethal concentration (LC50) was reduced about 10 ties in the S-population fed on diets...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Velvetbean caterpillar; Baculovirus; Leaf extracts; Resistant genotypes; Soybean.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000400021

Biological Activity of Piper aduncum extracts on Anticarsia gemmatalis (Hübner) (Lepidoptera: Erebidae) and Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: LUCENA,DAIANE C.; BERTHOLDO-VARGAS,LUCIA R.; SILVA,WILSON C.; MACHADO,AARON F.; LOPES,TAMIRIS S.; MOURA,SIDNEI; BARROS,NEIVA M.
ABSTRACT Piper aduncum found naturally in the Amazon and southeastern Brazil, is known for its secondary metabolites that have activity on insects. Anticarsia gemmatalis and Spodoptera frugiperda are among the major insect pests associated with agricultural production. This research evaluated the biological activity of hexane, ethyl acetate, and ethanol extracts of P. aduncum leaves on mortality and duration of larval and pupal periods, as well as weight, width, and length of A. gemmatalis and S. frugiperda pupae. The mortality of A. gemmatalis larvae in trials with P. aduncum extracts were 93.3% (hexane) and 90% (ethyl acetate), estimating LC50 of 6.35 and 5.79 mg/mL, respectively. Mortality in S. frugiperda submitted to the hexane extract ranged from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fall armyworm; Velvetbean caterpillar; Pest management; Plant extracts.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401869

Production of nuclear polyhedrosis virus of Anticarsia gemmatalis Hübner (Lepidoptera:Noctuidae): effect of vírus dosage, host density and age
Provedor de dados: Anais da Sociedade Entomológica do Brasil
Autores: Moscardi,Flávio; Leite,Luiz G.; Zamataro,Carlos E.
The laboratory production of Anticarsia gemmatalis Hübner nuclear polyhedrosis virus (AgNPV) was evaluated for larvae inoculated at 1.0, 1.5, 2.0, and 2.5 cm and with two NPV dosages, 10(6) and 10(7) polyhedron inclusion bodies (PIB)/ml, sprayed on the insect diet surface. A fixed population of 25 larvae/300-ml cup was used. Highest virus yield was achieved for larvae inoculated with ca. 2.0 cm at the higher NPV dosage. Losses of NPV-inoculated larvae ranged from 42.4% to 64%, due to high incidence of canibalism, death by other causes, and pupation. In another experiment, larvae were inoculated with two NPV dosages (1.0 x 10(7) and 4.0 x 10(7) PIB/ml), using 25,20, and 15 larvae/cup at the beginning of 4th instar (B4L); end of 4th instar (E4L); beginning...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Velvetbean caterpillar; Baculovirus.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591997000100017

Eficiência do vírus de poliedrose nuclear em mistura com herbicidas pós-emergentes, no controle de Anticarsia gemmatalis Hübner (Lepidoptera: Noctuidae)
Provedor de dados: Anais da Sociedade Entomológica do Brasil
Autores: Ávila,Crébio J.; Melhorança,André L.
This study was carried out in the field to evaluate the efficacy of the nuclear polyhedrosis virus (NPV) mixed with the postemergence herbicides acifluorfen-sodium (Blazer), bentazon (Basagran), chlorimuron-ethyl (Classic), fluazifop-p-butil (Fuzilade), haloxyfop-methyl (Verdict), fomesafen (Flex), lactofen (Cobra) and imazethapyr (Pivot), to control of the velvetbean caterpillar, Anticarsia gemmatalis Hübner (Lepidoptera:Noctuidae). The NPV was tested at 1.7 x 1011 polyhedron inclusion bodies/hectare, while the herbicides were applied at recommended doses for controlling weeds in soybean fields. A completely randomized block design with four replicates was used; each plot consisted of 48 m². Evaluations of caterpillars either infected or non-infected by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Velvetbean caterpillar; VPNg.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591999000200019

Hemocyte quantitative changes in Anticarsia gemmatalis (Lepidoptera: Noctuidae) larvae infected by AgMNPV
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Andrade,Fábio Goulart de; Negreiro,Maria Cláudia Cordeiro de; Levy,Sheila Michele; Fonseca,Inês Cristina de Batista; Moscardi,Flávio; Falleiros,Ângela Maria Ferreira.
The initial effects of the infection by AgMNPV in the total and differential counts of the hemocytes in Anticarsia gemmatalis (Lepidoptera: Noctuidae) larvae were studied. The total number of the hemocytes did not decrease in infected larvae, as it occurred in non infected larvae. In infected larvae, the hemocyte types showed the following frequencies: plasmatocytes - 47.8%, esferulocytes - 25.9%, granulocytes - 15.8%, oenocytoids - 7.2%, prohemocytes - 2.8%, vermicytes - 0,5%. Only the percentage of the granulocytes was different among infected and non infected larvae, indicating that these cells responded quickly to the initial viral infection. These results showed the effective role of the hemocytes in the response of the A. gemmatalis to the infection...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Velvetbean caterpillar; Viral infection; Cellular defense; DHC; THC.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000200005

Characterization of a Chrysodeixis includens nucleopolyhedrovirus Isolate from Brazilian Cerrado and Assessment of its Co-Infection with Anticarsia gemmatalis multiple nucleopolyhedrovirus
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Sanches,Márcio Martinello; Sihler,William; Silva,Cláudia Efigênia Pereira; Guimarães,Giovana Curcio; Benito,Norton Polo; Sosa-Gómez,Daniel Ricardo; de Souza,Marlinda Lobo.
Abstract Chrysodeixis includens has become the major Lepidopteran pest of soybean crops, especially in the Brazilian Cerrado (savanna) region. A native isolate of Chrysodeixis includens nucleopolyhedrovirus (ChinNPV) from this region, Buritis, MG, was assessed for its biological and molecular features. In addition, in vitro co-infection with Anticarsia gemmatalis multiple nucleopolyhedrovirus (AgMNPV), another virus of an important soybean pest, was tested. The ChinNPV-Buritis isolate presented an average LC50 of 7,750 occlusion bodies (OBs)/ml of diet in C. includens larvae. Analysis of restriction endonuclease profiles of viral DNA revealed similarities with previously described ChinNPV isolates IE, IF, and IG from Brazil, although the presence of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: AgMNPV; Baculovirus; ChinNPV; Soybean looper; Velvetbean caterpillar.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100218

Detection of cry1 genes in Bacillus thuringiensis isolates from South of Brazil and activity against Aanticarsia gemmatalis (Lepidoptera:Noctuidae)
Provedor de dados: Brazilian Journal of Microbiology
Autores: Bobrowski,Vera Lucia; Pasquali,Giancarlo; Bodanese-Zanettini,Maria Helena; Fiuza,Lidia Mariana.
The bacterium Bacillus thuringiensis (Bt) is characterized by its ability to produce proteic crystalline inclusions during sporulation. Cry1 protein has insecticidal activity and is highly specific to certain insects and not toxic to unrelated insects, plants or vertebrates. In this work, the patogenicity of twelve Bt isolates was tested against Anticarsia gemmatalis, one of the most important insect pests of soybeans. Spore-crystal complex was applied to the surface of artificial diets and the mortality of A. gemmatalis larvae was assessed seven days after each treatment. When compared to a control Bt isolate known by its high toxicity to A. gemmatalis larvae, four novel Bt isolates exhibited even higher toxic activities against the insect, resulting in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacillus thuringiensis; Velvetbean caterpillar; Anticarsia gemmatalis; Cry1 gene; Delta-endotoxin.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822001000200006