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| Registros recuperados: 59 | |
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| Holtz, Anderson Mathias; Escola Agrotécnica Federal de Colatina; Almeida, Gustavo Dias de; Universidade Federal de Viçosa; Fadini, Marcos Antonio Matiello; Empresa de Pesquisa Agropecuária do Estado de Minas Gerais; Zanuncio, José Cola; Universidade Federal de Viçosa; Zanuncio Júnior, José Salazar; Universidade Federal de Viçosa; Andrade, Gilberto Santos; Universidade Federal de Viçosa. |
| The effect of plant feeding on biological aspects of Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) was evaluated. Nymphs and adults of this predator were fed with Tenebrio molitor L. (Coleoptera: Tenebrionidae) pupae on Eucalyptus urophylla plants in the field or only with pupae of this prey in the laboratory. The development and nymphal survival, as well as the pre-oviposition period, number of egg masses, number, fertility and viability of eggs and the longevity of females of this predator were evaluated. The eucalyptus plants improved the development of P. nigrispinus. This demonstrates that this predator can present higher population growth with eucalyptus plants and T. molitor pupae than in the laboratory (controlled conditions) only with... |
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Palavras-chave: 5.00.00.00-4 Podisus nigrispinus; Biological control; Feeding habit; Vegetable supplement; Predator 5.01.02.02-8 Podisus nigrispinus; Biological control; Feeding habit; Vegetable supplement; Predator. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6152 |
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| Ruiz-Sánchez,Esaú; Caamal-Eb,Lorenza; Cristóbal-Alejo,Jairo; Munguía-Rosales,Ricardo; Pérez-Gutiérrez,Alfonzo. |
| The multicolored Asian lady beetle, Harmonia axyridis Pallas (Coleoptera: Coccinelliadae), is a voracious predator of soft-bodied insects that has been widely used for biological control. In this work, we examined the effects of dilflubenzuron, an insect growth regulator (IGR), on a young population of H. axyridis under laboratory conditions in order to evaluate the risk of using this IGR in integrated pest management programs. Larval and pupal stages of H. axyridis were dipped 3 s in diflubenzuron dilutions (50, 100 or 200 mg L-1) or pure distilled water (control). The percentage of survival and the number of days from immature stage treated to adult emergence were evaluated. The negative effects were related to the developmental stages of H. axyridis and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: H. axyridis; Diflubenzuron; Insect growth regulator; Predator. |
| Ano: 2010 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952010000300011 |
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| Malaguido,Andréa B.; Panizzi,Antônio R.. |
| Observou-se a ocorrência de Alcaeorrhynchus grandis (Dallas) (Hemiptera: Pentatomidae: Asopinae) predando larvas da lagarta do girassol Chlosyne lacinia saundersii Doubleday & Hewitson em girassol (Helianthus annuus L.) na Fazenda Experimental da Embrapa Soja, no norte do Paraná, durante janeiro-fevereiro de 1998. De ovos coletados em campo, ninfas do percevejo foram criadas em laboratório alimentadas com larvas de C. l. saundersii obtidas no campo. As ninfas também foram criadas com larvas da lagarta da soja Anticarsia gemmatalis Hübner obtidas em laboratório, para comparação. Nenhuma ninfa de A. grandis sobreviveu até a idade adulta, atingindo 100% de mortalidade já no 3º instar, quando alimentadas com larvas de C. l. saundersii. Quando... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Hemiptera; Lepidoptera; Helianthus annuus; Predator. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591998000400024 |
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| Zanuncio,José Cola; Silva,Carlos Alberto Domingues da; Lima,Eraldo Rodrigues de; Pereira,Fabrício Fagundes; Ramalho,Francisco de Souza; Serrão,José Eduardo. |
| The effect of the defense of the prey Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) on predation rates of Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) females was studied. P. nigrispinus preyed 1.0, 1.4, 1.2, 3.8 and 3.0 and 0.4, 0.8, 1.6, 2.8 and 3.2 third instars of S. frugiperda larvae with and without defense, respectively, with the densities of one, two, four, six and eight larvae. The attack rate and the manipulation time were, respectively, 0.67 ± 0.39-h and 6.72 ± 2.88 h for P. nigrispinus females fed with larvae with defense and 2.51 ± 0.16-h and 0.51 ± 0.77 h for those without defense. The functional response of the predator P. nigrispinus varies with the defense and the density of the prey S. frugiperda, with larger... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Asopinae; Biological control; Predator; Functional response. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000100015 |
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| Pereira,Alexandre Igor de Azevedo; Ramalho,Francisco de Sousa; Rodrigues,Karjoene Cassimiro Vilar; Malaquias,José Bruno; Souza,Jefferson Virgínio da Silva; Zanuncio,José Cola. |
| In this work, the effect of different densities (1, 3, 5, 7 and 9) of 3rd instar Alabama argillacea (Huebner) larvae on food consumption by Podisus nigrispinus (Dallas) males was evaluated. The densities established were converted to weight of prey offered: 13.4 mg (one larva), 33.3 mg (three larvae), 54.3 mg (five larvae), 81.8 mg (seven larvae), and 110.34 mg (nine larvae). The quantity of food consumed by P. nigrispinus increased with the prey density. The density of preys did not affect the time spent by the predator to ingest the food. The quantity of food extracted per minute was always higher in smaller densities and lower in higher densities. Males mean body weight did not differ statistically between the treatments tested, and weight gain was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cotton leafworm; Predator; Stinkbug; Food consumption; Nutrition. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000500004 |
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| Lemos,Walkymário de Paulo; Ramalho,Francisco de Souza; Serrão,José Eduardo; Zanuncio,José Cola. |
| The morphology of the reproductive tract of Podisus nigrispinus (Dallas) females fed with Alabama argillacea (Hübner) larvae, artificial diet, Tenebrio molitor L. larvae or Musca domestica L. larvae were studied. The reproductive tract of females of this species presented yellow coloration and independent of the diet, each ovary had seven ovarioles joined through terminal filaments and forming a bunch shape structure. The histological data revealed that the ovary of P. nigrispinus was of meroistic telotrophic type, with each individual ovariole divided in a terminal filament, a tropharium (trophic chamber), a vitellarium, and a pedicel. The prey type affected the development and morphometry of these structures. Females of P. nigrispinus fed with 3rd or 5th... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological control; Morphology; Ovaries; Predator; Reproduction. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000100017 |
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| Pereira,Alexandre Igor Azevedo; Ramalho,Francisco de Sousa; Bandeira,Catarina de Medeiros; Malaquias,José Bruno; Zanuncio,José Cola. |
| Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) was exposed to gammacyhalothrin to study the stimulatory effect of low concentrations of this pyrethroid. The doses studied were 23.4375, 11.7188, 5.8594, 2.9297, 1.4648, 0.7324 mg.litre-1 and water, as control. The third, fourth, and fifth instars of P. nigrispinus were shorter with all the doses of this insecticide. The survival and longevity of this predator was highest with the lowest doses. The oviposition period of P. nigrispinus decreased as the doses increased. The lowest pre-and postoviposition periods were found with 11.7188 mg.litre-1 of gammacyhalothrin. The dose 0.7324 mg.litre-1 increased the clutch interval. The egg viability was similar between the treatments. The number of eggs per... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Predator; Pyrethroid; Stink bug; Hormesis; Biology. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000500013 |
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| Cola Zanuncio,José; Azevedo de Freitas,Fernando; de Souza Tavares,Wagner; Lourenção,André Luiz; Vinha Zanuncio,Teresinha; Serrão,José Eduardo. |
| The parameters of survival, development and reproduction of Podisus nigrispinus Dallas, 1851 (Heteroptera: Pentatomidae) may be affected by feeding on soybean (Glycine max L. Merr.; Fabaceae) cultivars. The direct effect was evaluated of the insect-resistant soybean 'IAC-24' (insect-susceptible soybean 'UFVS-2006' + pupae of Tenebrio molitor L., 1758 Coleoptera: Tenebrionidae versus 'IAC-24' plants + pupae of T. molitor) in the nymph and adult stages of the predator P. nigrispinus. The duration of the nymph stage was similar between treatments, but 'IAC-24' reduced the duration of the IV instar of this predator. The survival of P. nigrispinus was similar between treatments in the instars I, II, IV and V and in the nymph stage, but the survival of the III... |
| Tipo: Journal article |
Palavras-chave: Asopinae; Biological control; Integrated pest management; Predator; Soybean. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000400011 |
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| Costa,Denilson Bezerra; Souza,Brígida; Carvalho,Geraldo Andrade; Carvalho,César Freire. |
| ABSTRACT - This work was designed to evaluate the residual action of the insecticides trichlorfon, triflumuron, endosulfan, fenpropathrin, chlorpirifos, tebufenozide and esfenvalerate, sprayed on cotton plants, to second-instar larvae of Chrysoperla externa (Hagen, 1861), under greenhouse conditions. The experimental design was completely randomized with ten replicates. Three larvae were released on each plant, in the 1st, 12th and 23rd day after pesticides spray. Tebufenozide and esfenvalerate were little persistent (class one), while trichlorfon, triflumuron and endosulfan were slightly persistent, decreasing the survival of C. externa larvae over 30%, up to 14 days after spray. Fenpropathrin and chlorpirifos caused mortality over 30%, up to 25 days... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Selectivity; Predator; Pesticides; Cotton. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542003000400014 |
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| Trystram, Clément; Roos, David; Guyomard, David; Jaquemet, Sébastien. |
| Understanding drivers of trophic partitioning at the community level is an essential prerequisite to the establishment of ecosystem-based management of fisheries. In this study, we identify drivers of trophic partitioning within a community of epipelagic fish and a community of deep-water fishes off Reunion Island. Effects of intrinsic (species identity, etc.) and environmental variables (fishing zone, month) on stomach content composition and stable isotope ratios were tested using regression trees and linear models respectively. Our results demonstrated firstly an independence of both communities, with very few common prey although they occurred in similar localities, and secondly, very different patterns of resources partitioning among each community.... |
| Tipo: Text |
Palavras-chave: Trophic partitioning; Deep-sea; Epipelagic; Predator; Stable isotopes; Stomach contents. |
| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00353/46440/46184.pdf |
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| Registros recuperados: 59 | |
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