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Registros recuperados: 12
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Egg parasitoids of Edessa meditabunda (Fabricius) (Pentatomidae) in lettuce crop Rev. Bras. entomol.
Favetti,Bruna M.; Krinski,Diones; Butnariu,Alessandra R.; Loiácono,Marta S..
Egg parasitoids of Edessa meditabunda (Fabricius) (Pentatomidae) in lettuce crop. This study evaluated the occurrence of parasitoids in eggs of the stink bug, Edessa meditabunda (Fabricius, 1794) (Heteroptera, Pentatomidae) found on lettuce crop in Mato Grosso State, Brazil. Samples were collected in the vegetable garden "Cheiro Verde", in the municipality of Tangará da Serra, in curly lettuce. A bed of lettuce was selected randomly, where the eggs of E. meditabunda were collected. Five-hundred and seventy eight eggs of E. meditabunda were collected, 86.3% of them parasitized by Telenomus podisi Ashmead, 1893 (Hymenoptera, Platygastridae), Trissolcus urichi Crawford, 1913 (Hymenoptera, Platygastridae) and Neorileya albipes Girault, 1913 (Hymenoptera,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biological control; Eurytomidae; Neorileya albipes; Platygastridae; Telenomus podisi.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262013000200016
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First report of phytophagous stink bug in chicory crop Ciência Rural
Krinski,Diones.
This study reports the first occurrence of the stink bug Edessa meditabunda (F.) (Heteroptera: Pentatomidae) on chicory in Pará State, Brazil (7°7'45.59"S 55°23'20.99"W). Samples were taken at Florentino Farm, municipality of Novo Progresso from a plot of plants (5mx1,25m). Sixty-eight chicory plants were sampled and 1.649 adults, 636 nymphs and 1.012 egg masses were obtained.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pentatomidae; Cichorium intybus; Insect pest.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013000100007
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Hypatropis inermis (Hemiptera, Pentatomidae): first record on rice crops Rev. Bras. entomol.
Krinski,Diones; Foerster,Luís Amilton; Grazia,Jocélia.
This study reports for the first time the occurrence of Hypatropis inermis on upland rice crops (variety Cambará), in Novo Progresso, state of Pará, Brazil (7°07'45.71"S 55°23'21.13"W). The inventory of insect pests was conducted between November 2010 and March 2011 with entomological sweep nets and visual search on stems of rice plants. This record indicates that rice crops may represent important feeding and mating sites for this species.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon forest; Insect pest; Integrated pest management; Small rice stem stink bug.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262015000100012
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Karyotypic description of the stingless bee Oxytrigona cf. flaveola (Hymenoptera, Apidae, Meliponina) of a colony from Tangará da Serra, Mato Grosso State, Brazil Genet. Mol. Biol.
Krinski,Diones; Fernandes,Anderson; Rocha,Marla Piumbini; Pompolo,Silvia das Graças.
The aim was to broaden knowledge on the cytogenetics of the subtribe Meliponina, by furnishing cytogenetic data as a contribution to the characterization of bees from the genus Oxytrigona. Individuals of the species Oxytrigona cf. flaveola, members of a colony from Tangará da Serra, Mato Grosso State, Brazil, were studied. The chromosome number was 2n = 34, distributed among four chromosomal morphologies, with the karyotype formula 8m+8sm+16st+2t. Size heteromorphism in the first metacentric pair, subsequently confirmed by sequential staining with fluorochrome (DA/DAPI/CMA3), was apparent in all the examined individuals The nucleolar organizing regions (NORs) are possibly located in this metacentric chromosome pair. These data will contribute towards a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chromosome; Heteromorphism; Fluorochrome.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000300020
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Mutilating predation in the Cheirodontinae Odontostilbe pequira (Characiformes: Characidae) Neotropical Ichthyology
Lima,Monise R. L.; Bessa,Eduardo; Krinski,Diones; Carvalho,Lucélia Nobre.
We observed individuals of Odontostilbe pequira, a small characid, approaching and biting individuals of larger-bodied fishes of other species. This observation was made in two clear water headwater streams of the Cuiabá basin, Paraguay River system, located in Nobres, Mato Grosso State, Brazil, which led us to investigate the behavioral interactions of these fish. We characterized behavioral interactions between species by direct underwater observations using snorkelling and video recordings. Additionally, we proceeded diet analyses of O. pequira, obtaining intestinal coefficient and the index of alimentary importance. During underwater observations we checked the relative frequency of attacks by O. pequira on larger fish species. Odontostilbe pequira...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Animal behavior; Feeding plasticity; Lepidophagy; Underwater observations.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000200011
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Nymphicidal effect of vegetal extracts of Annona mucosa and Anonna crassiflora (Magnoliales, Annonaceae) against rice stalk stink bug, Tibraca limbativentris (Hemiptera, Pentatomidae) Rev. Bras. Frutic.
Krinski,Diones; Massaroli,Angélica.
This study aimed to verify the chloroform-methanol nymphicidal action of extracts of Annona mucosa leaves and seeds and of A. crassiflora seeds on second instar nymphs of rice stalk stink bug, Tibraca limbativentris. For each extract the concentrations of 0.5%, 1.0%, 2.0%, 4.0%, 8.0%, and two control treatments (water and Tween80®) were used. The results show that the seed extracts of A. mucosa and A. crassiflora have insecticidal activity against the T. limbativentris nymphs with statistical significance for all concentrations when compared with controls. The seed extract of A. mucosa showed the higher toxicity with greater than 75% mortality at a concentration of 1.0% in the first 24 h after application. The leaf extract of A. mucosa presented the lowest...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Inseticidal plants; Biological insecticide; Alternative control; Phyto-insecticide.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452014000500026
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Oviposition preference of the neotropical brown stink bug Euschistus heros on artificial substrates of different colors Ciência Rural
Krinski,Diones; Favetti,Bruna Magda; Lima,Adielson Gonçalves de; Brum,Tatiane Regina.
This study aimed to evaluate the oviposition preference of the Neotropical brown stink bug, Euschistus heros (F.) on artificial substrates of different colors (felt woven). For this, ten pairs of stink bugs were transferred into plastic pots. Each pot contained seven felts of 6x20 cm (100% polyester-atoxic) of different colors (white, black, blue, green, red, yellow and brown). The pots were evaluated daily for three weeks (21 days) being counted the number of eggs, clutches and eggs per clutch for each color of felt. The choice test was set in a completely randomized design. Data obtained was submitted to the analysis of variance and means were compared by Scott-Knott test at 5% probability. During the evaluation were produced 7074 eggs distributed in 977...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Behavior; Ecology; Egg laying; Insect pest; Insect rearing.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013001200011
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Physalis angulata L. (Solanaceae): a potential host-plant of stink bugs Edessa meditabunda F. (Hemiptera, Pentatomidae) Biota Neotropica
Krinski,Diones.
Physalis angulata is native to South America. In Brazil is popularly known as camapú, balãozinho, juá-de-capote, bucho-de-rã, camambu, mata-fome, bate-testa and balão-rajado. Even being a species with wide ecological adaptation the studies on pest insects associated with these plants are incipient. Thus, this study reports for the first time the occurrence of stink bugs Edessa meditabunda on plants P. angulata in the Amazon region.
Tipo: Info:eu-repo/semantics/other Palavras-chave: Insect-pest; Plant-reservoir; Stink bug wing-black; Neotropical region.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000200336
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Potencial inseticida de plantas da família Annonaceae Rev. Bras. Frutic.
Krinski,Diones; Massaroli,Angélica; Machado,Marilza.
A utilização de plantas para o controle de insetos tem aumentado em todo o mundo. Isto ocorre porque os inseticidas vegetais apresentam moléculas biodegradáveis, são menos tóxicos a mamíferos e potencialmente adequados para utilização no controle de pragas. As plantas da família Annonaceae estão ganhando destaque como biopesticidas por serem naturalmente bioativas, apresentando atividade citotóxica, antitumoral, vermicida, antimicrobiana, imunossupressora, antiemética, inibidora do apetite e crescimento, antimalárica e também inseticida. A atividade inseticida das anonáceas deve-se à presença de acetogeninas, substâncias que atuam nas mitocôndrias, inibindo a NADH - ubiquinona oxidorredutase, causando a morte dos insetos. Nesta revisão, relatamos a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plantas inseticidas; Fitoinseticidas; Controle alternativo.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452014000500027
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Quantitative and qualitative damage caused by Oebalus poecilus (Hemiptera, Pentatomidae) to upland rice cultivated in new agricultural frontier of the Amazon rainforest (Brazil) Ciência e Agrotecnologia
Krinski,Diones; Foerster,Luís Amilton.
ABSTRACT Oebalus poecilus (Dallas 1851) is one of the stink bug species of great economic importance for rice producers in Brazil of irrigated, flood and upland cropping systems. These pentatomids are known as stink bugs of panicles, because both nymphs and adults feed mainly on panicles. Stink bug attacks result in pecky (spots) seeds, lower mass, germinative reduction and deformed grains. Bearing these factors in mind, the aim of this study was to evaluate the quantitative and qualitative losses in commercial cultivars of upland rice (Cambará variety), submitted to different population levels of stink bugs of panicles, O. poecilus, at different reproductive growth stages. The results show that in upland rice (Cambará variety), the rice grains are...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Oryza sativa; Stink bug of panicles; Damage level; Integrated pest management..
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000300300
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Toxicity of essential oils from leaves of Piperaceae species in rice stalk stink bug eggs, Tibraca limbativentris (Hemiptera: Pentatomidae) Ciência e Agrotecnologia
Krinski,Diones; Foerster,Luís Amilton.
ABSTRACT Tibraca limbativentris to is an important rice pest and occurs in all rice-growing regions of Latin America. The control this insect is accomplished with synthetic chemical insecticides, however, new approaches are needed to reduce risks to the environment, to the natural enemies and also to avoid the onset of insecticides resistance. This study was designed to assess the toxicity of essential oils (EOs) from leaves of Piper aduncum, P. gaudichaudianum, P. malacophyllum, P. marginatum and P. tuberculatum (Piperaceae) on rice stalk stink bug eggs, T. limbativentris. Essential oils were extracted with steam distillation and dilutions were made for bioassays at concentrations of 0.25; 0.5; 1.0; 2.0 and 4.0%. Essential oils from all species of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Piper aduncum; Piper gaudichaudianum; Piper malacophyllum; Piper marginatum; Piper tuberculatum.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542016000600676
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Use of artificial substrates of different colors for oviposition by the brown stink bug Euschistus heros (Hemiptera, Pentatomidae) Rev. Bras. entomol.
Krinski,Diones; Favetti,Bruna M.; Leite-Junior,Admar F.; Silva-Gomes,Izabela T..
Aiming to contribute to a rearing methodology for the brown stink bug, Euschistus heros, in the laboratory, we evaluated oviposition on artificial substrates of different colors. During six days, oviposition was evaluated daily, by counting the total number of eggs, number of clutches, and eggs/clutch. Females laid 12,463 eggs, in 1,677 clutches, resulting in an average of 7.28 ± 0.44 eggs/clutch. Black, brown, and green felt had the most eggs and clutches. The results demonstrated that many colors are suitable as oviposition substrate for E. heros, providing information for the mass rearing of this insect.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biological control; Cerrado; Insect pest; Soybean; Mato Grosso.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262013000300010
Registros recuperados: 12
Primeira ... 1 ... Última
 

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