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| Registros recuperados: 52 | |
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| Rodrigues, William Costa; Cassino, Paulo Cesar Rodrigues. |
| Com o propósito de conhecer os parasitóides de cochonilhas e aleirodídeos, associados às plantas cítricas no Estado do Rio de Janeiro, foram realizadas coletas de folhas contendo os fitoparasitos: Aleurothrixus floccosus (Maskell), Tetraleurodes (=Aleurotrachelus) cruzi (Cassino), Paraleyrodes bondari Peracchi, Coccus viridis (Green), Crysomphalus ficus (Ashmead), Orthezia praelonga (Douglas) e Pinnaspis aspidistrae (Signoret), sendo estas limpas, em seguida procedia-se a eliminação dos organismo que eram objeto de estudo (cada folha permanecia com um única espécie de fitoparasito, para que os parasitóides que surgissem fossem mesmo associados àquela espécie). Após este procedimento as folhas foram incubadas por um período de 25 dias, onde foi observado... |
| Tipo: Article |
Palavras-chave: Citros; Controle biológico; Inimigos naturais; Hymenoptera; Parasitismo; Biological control; Citrus; Hymenoptera; Natural enemies; Parasitism. |
| Ano: 2012 |
URL: http://hdl.handle.net/2315/232 |
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| Rojas Rojas, Patricia. |
| El psílido de la papa [Bactericera cockerelli (Sulc)] es una de las plagas más importantes de las solanáceas, causa daños no sólo por la alimentación sino además por el papel como vector de enfermedades en papa y tomate, lo cual ocasiona pérdidas millonarias en Estados Unidos de América, México y Centroamérica. Debido a esto el uso de plaguicidas contra este insecto se ha incrementado, y con ello los posibles problemas de resistencia a insecticidas, brotes de plagas secundarias y daños al ambiente; entonces es necesario implementar un programa de manejo integrado de esta plaga, donde el control biológico se convierta en una de las herramientas principales, para ello es necesario incrementar el conocimiento de la biología de los enemigos naturales de este... |
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Palavras-chave: Psílido de la papa; Enemigos naturales; Control biológico; Potato psyllid; Natural enemies; Biological control; Maestría; Entomología y Acarología. |
| Ano: 2010 |
URL: http://hdl.handle.net/10521/263 |
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| Murillo Hernández, Juan Eduardo. |
| Cuando no se puede evitar el uso de insecticidas es recomendable que la propuesta de manejo de sus plagas incluya el efecto de dichos insecticidas sobre los enemigos naturales (EN). En el presente estudio se evaluó el efecto de la residualidad y la toxicidad letal y subletal de los insecticidas beta-cyfluthrin, bifenazate, clorantraniliprol, flonicamid, spirotetramat y thiametoxam sobre Catolaccus hunteri, un ectoparasitoide del picudo del chile, Anthonomus eugenii. En las evaluaciones se empleó el método de contacto residual, se utilizaron discos foliares de plantas de chile como superficies de exposición. Se encontró diferencia significativa en la toxicidad letal, según la clasificación de la IOBC, thiametoxam resultó moderadamente nocivo (98% de... |
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Palavras-chave: Picudo del chile; Control biológico; Enemigos naturales; Plaguicidas; Efectos subletales; Pepper weevil; Biological control; Natural enemies; Pesticides; Sublethal effects; Entomología y Acarología; Maestría. |
| Ano: 2014 |
URL: http://hdl.handle.net/10521/2321 |
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| Mascarenhas,André Luiz S.; Silva Junior,Juvenal C.. |
| ABSTRACT Galls induced by thrips are simple structures when compared to those of other groups of arthropods, and little is known regarding many of their aspects. This study aimed to investigate aspects of the natural history of Gynaikothrips uzeli Zimmermann, 1900 in galls of Ficus benjamina L., 1753 using seasonal sampling (summer and winter). Twenty trees were sampled and divided into quadrants. From each of them, five galls were collected, forming a total of 400 galls per collection. Thrips showed greater abundance at higher temperatures (25.7°C) and no precipitation. Sex ratio was biased towards females (0.022 males per female), pointing to an inbred mating structure. Arthropod fauna associated with galls was more abundant (N=798) in winter, and it... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Leaf galls; Natural enemies; Sex ratio; Thrips. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212016000100216 |
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| Polaszek, A.; Abd-Rabou, S.; Huang, J.. |
| The species of Encarsia Foerster (Hymenoptera: Aphelinidae) known from Egypt are revised. A total of 14 species are treated, including one new species. E. indifferentis Mercet, 1929, is synonymised with E. inaron (Walker, 1839). All species are fully described or diagnosed, and illustrated. Host records, and species-distributions outside Egypt, are given. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Egypt; Encarsia; Aleyrodidae; Aphelinidae; Diaspididae; Parasitoids; Biological control; Natural enemies; 42.75. |
| Ano: 1999 |
URL: http://www.repository.naturalis.nl/record/215090 |
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| MONNERAT,R.G.; KIRK,A.A.; BORDAT,D.. |
| The genus Diadegma have some species able to parasite Plutella xylostella (L.) (DBM). Laboratory studies were carried out on a Diadegma sp. from Reunion Island to elucidate its ability to parasite DBM larvae, and to determine the influence of the temperature on its fecundity, longevity, oviposition and the consumption of cabbage leaves by parasitized DBM larvae. Parasitism rates were close to 70% for the L2 and L3 instar, and 53% for the L4. At 15°C, there were no progeny. At 20°C and 25°C, the percentage of parasitism was near 70%. At 29°C, the percentage parasitism was similar but the number of males produced was higher. Parasitized DBM larvae consumed 35% less leaf surface than non parasitized larvae. This Diadegma sp. is a possible candidate for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Natural enemies; Cabbage; Temperature; Parasitism; Diamondback moth. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2002000200015 |
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| Maia,Valéria Cid. |
| Abstract Many gall-inducing insects have been reported as pests in the Old World and North America, although few such examples are known from South America. A list of gall-inducing insects of potential economic importance, with a focus on those of restinga environments, was compiled using Maia (2013a) as starting point and updated with the database “Thompson ISI”, using ‘Insect (title) and gall (topic)’ as keywords. Botanical names were updated using the site “Flora do Brasil, 2020”, while potential economic significance of host plant species was acquired from Santos et al. (2009) and the site “Useful Tropical Plants”. Fifty-eight galling species were associated with 29 economically important plant species of 18 families in Brazilian restingas. The gallers... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cecidomyiidae; Diptera; Hemiptera; Natural enemies; Geographic distribution. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492018000100248 |
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| Leite,Germano Leão Demolin; Picanço,Marcelo; Jham,Gulab Newandram; Moreira,Márcio Dionízio. |
| The control of whitefly Bemisia tabaci (Gennadius) biotype B (Hemiptera: Aleyrodidae) on okra (Abelmoschus esculentus L.) consists primarily in the use of insecticides, due to the lack of information on other mortality factors. The objective of this study was to evaluate the spatial and temporal population dynamics of the whitefly B. tabaci biotype B on two successive A. esculentus var. "Santa Cruz" plantations. Leaf chemical composition, leaf nitrogen and potassium contents, trichome density, canopy height, plant age, predators, parasitoids, total rainfall and median temperature were evaluated and their relationships with whitefly on okra were determined. Monthly number estimates of whitefly adults, nymphs (visual inspection) and eggs (magnifying lens)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bemisia tabaci; Abelmoschus esculentus; Natural enemies; Plant phenology; Temperature. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2005000100003 |
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| Tavares,W.S; Cruz,I; Silva,R.B; Figueiredo,M.L.C; Ramalho,F.S; Serrão,J.E; Zanuncio,J. C. |
| Soil organisms play an important role in organic crops of Crotalaria juncea (Fabaceae) and are associated with the natural conservation of the environment. The present study was aimed to investigate the population of soil organisms in the organic culture of C. juncea, as well as its importance as a refuge for natural enemies. Dalbulus maidis (Hemiptera: Cicadellidae), Diabrotica sp. (Coleoptera: Chrysomelidae), Doru luteipes (Dermaptera: Forficulidae), Gryllus assimilis (Orthoptera: Gryllidae), Lagria villosa (Coleoptera: Lagriidae), Melanotus sp. (Coleoptera: Elateridae), Meloidogyne incognita (Tylenchida: Heteroderidae), Nephila clavipes (Araneae: Nephilidae), Orius insidiosus (Hemiptera: Anthocoridae), Pheidole sp. (Hymenoptera: Myrmicidae), Phyllophaga... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crotalaria juncea; Natural enemies; Organic agriculture; Pests; Soil organisms; Sun hemp. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582011000300001 |
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| Registros recuperados: 52 | |
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