|
|
|
| Registros recuperados: 14 | |
|
|
| 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 |
| |
|
|
| 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 |
| |
|
|
| 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 |
| |
|
| |
|
|
| 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 |
| |
|
|
| 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 |
| |
|
| |
|
|
| 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 |
| |
|
| |
|
|
| 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 |
| |
|
|
| 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 & 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 & Nagarkatti, 1973 and Trichogramma atopovirilia Oatman &... |
| 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 |
| |
|
|
| 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 |
| |
|
|
| 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 |
| |
|
| |
| Registros recuperados: 14 | |
|
|
|
