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| Registros recuperados: 60 | |
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| SCHOENINGER,Karine; SOUZA,Jorge L.P.; KRUG,Cristiane; OLIVEIRA,Marcio L.. |
| ABSTRACT We surveyed parasitoid wasps (Hymenoptera) in two guarana plantations in the central Brazilian Amazon (one conventionally, and one organically managed), as well as in adjacent forest and edge areas between crop and forest. We evaluated differences between management systems in parasitoid diversity and abundance, and assessed the importance of the surrounding matrix as a source of parasitoid wasps for guarana cultivation. Parasitoid wasp richness, abundance and taxonomic composition (at family level) were compared between plantations, and among habitats within plantations. Wasps were sampled using Malaise and Moericke traps. A total of 25,951 parasitoid wasps (10,828 in the conventional, and 15,123 in the organic crop area) were collected, and were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agroecosystem; Chalcidoidea; Crop management; Encyrtidae; Natural enemies. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000400283 |
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| Adaime,Ricardo; Sousa,Maria do Socorro Miranda de; Santos,Jonh Carlo Reis; Deus,Ezequiel da Glória. |
| Abstract The objective of this study was to evaluate the potential of the pioneer plant species Bellucia grossularioides (L.) Triana (Melastomataceae) to act as a reservoir for parasitoids of fruit flies in the Brazilian Amazon. We collected 48 samples of fruits (total of 4,012 fruits, 43.98 kg) during the months of July, August and September of 2013, in 15 of the 16 municipalities of Amapá State, Brazil. All samples showed infestation by fruit flies, with rates varying from 60.6 to 239.1 puparia/kg of fruit (mean of 106.8 puparia/kg of fruit). The percentage of emergence varied 18.6 to 64.3% (mean of 39.9%). Specimens of Anastrepha coronilli Carrejo & González (Diptera: Tephritidae) were obtained from all samples collected. Specimens of Neosilba... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological control; Natural enemies; Anastrepha coronilli; Doryctobracon areolatus. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000200204 |
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| Leite,Germano Leão Demolin; Picanço,Marcelo; Zanuncio,José Cola; Ecole,Carvalho Carlos. |
| The objective of this study was to evaluate effects of total rainfall, mean temperature, natural enemies, chemical composition of leaves, levels of nitrogen and potassium on leaves and density of leaf trichomes on attack intensity of Thrips palmi Karny (Thysanoptera: Thripidae) and Aphis gossypii (Glover) (Homoptera: Aphididae) on plantations of the eggplant (Solanum melongena) in two regions of Minas Gerais, Brazil. Higher numbers of A. gossypii/leaf and T. palmi/leaf were observed in plantations of this eggplant in the Municipalities of Viçosa and Guidoval, respectively. Guidoval had a rainy and hotter weather than Viçosa. T. palmi was almost positivelly correlated with rainfall (r= 0.49, P= 0.0538) while A. gossypii seemed to be more affected by mean... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aphis gossypii; Natural enemies; Plant nutrition; Solanum melongena; Thrips palmi. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000400002 |
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| Moura,Alexandre P; Carvalho,Geraldo A; Botton,Marcos. |
| Temperate fruit crops are an important economic activity for growers in southern Brazil. However, several pest species are associated to apple (Malus domestica Borkh.) crops in Brazil. Pesticides are largely used to control them and one way to change this is to combine selective pesticides and predator insects. The goal of this research was to evaluate the effects of the abamectin, carbaryl, fenitrothion, methidathion, sulfur, and trichlorfon pesticides on the survival and stage length of larvae and pupae, adult oviposition from treated larvae, and hatched eggs of two Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae) populations. The compounds were sprayed on glass plates in accordance with the International Organization for Biological Control... |
| Tipo: Journal article |
Palavras-chave: Green lacewings; Insecticides; Natural enemies; Pest control; Side effects. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000200009 |
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| Leite,Germano Leão Demolin; Picanço,Marcelo; Zanuncio,José Cola; Gusmão,Marcos Rafael. |
| The control of Aphis gossypii Glover (Hemiptera: Aphididae) on okra Abelmoschus esculentus (L.) (Malvaceae) consist primarily in the use of insecticides, due to the lack of information on other mortality factors. The objective of this study was to determine the effects of predators and parasitoids, height of canopy, plant age, leaf areas, organic compounds leaves, levels of leaf nitrogen and potassium, density of leaf trichomes, total rainfall and median temperature on attack intensity of A. gossypii on two successive A. esculentus var. Santa Cruz plantations. Monthly number estimates of A. gossypii and natural enemies (visual inspection) occurred on bottom, middle and apical parts of 30 plants/plantation (one leaf/plant). Plants senescence, leaf areas and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Abelmoschus esculentus; Aphid; Natural enemies; Leaf area; Nitrogen. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542007000200011 |
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| Grez,Audrey A; Torres,Constanza; Zaviezo,Tania; Lavandero,Blas; Ramírez,Marcelo. |
| Permanent and permeable edges, where natural enemies can feed, overwinter or easily cross over, should enhance the early arrival of these predators to crops. We evaluated the abundance and species richness of coccinellids migrating to alfalfa fields adjacent to Eucalyptus, a mix of false acacia, blackberries and poplar (F-B-P), vineyards, corn and annual vegetables. From September 2007 to May 2008, we captured coccinellids in three sticky traps (2.64 m²) placed at the borders between alfalfa fields and adjacent vegetation. We also estimated the abundance of aphid populations in the alfalfa fields, by counting the number of individuals per alfalfa stem in spring, summer and autumn. We collected 90,396 coccinellids from 14 species. Neither total abundance... |
| Tipo: Journal article |
Palavras-chave: Agroecosystems; Conservation biological control; Edge effects; Ladybeetles; Migration; Natural enemies. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202010000200011 |
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| Luz,Priscila Maria Colombo da; Paula-Moraes,Silvana Vieira de; López,Juan Manuel Perilla; Pujol-Luz,José Roberto; Penteado-Dias,Angélica Maria; Specht,Alexandre; Diniz,Ivone Rezende. |
| ABSTRACT: Natural biological control is one of the major causes responsible for reduction of pest population in agricultural ecosystem. However, natural biological control importance is usually minimized by not being estimated. This study reports the occurrence of Campoletis sonorensis (Cameron, 1886) (Hymenoptera: Ichneumonidae), Archytas marmoratus (Townsend, 1915) and Archytas incertus (Macquart, 1851) (Diptera: Tachinidae) associated with Helicoverpa armigera (Hübner, 1809) (Lepidoptera: Noctuidae). The rate of larval parasitism was up to 41% in structured refuge areas of cotton, without chemical control with insecticides. This study strengthens our knowledge relating to parasitoids associated with natural control of H. armigera in the American... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological control; Integrated pest management; Natural enemies. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000100151 |
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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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| 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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| 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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| 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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| ALMEIDA, R. P. de. |
| Em todos os tipos de sistemas produtivos, quer sejam monocultivo ou policultivo, irrigado ou de sequeiro, agroecológico ou onvencional, grande parte das limitações da produção está vinculada a ocorrência de pragas. Os diferentes cultivos de importância econômica (commodities ou não), que visam a sustentabilidade da produção agrícola, têm por princípio direcionar suas ações para o manejo das pragas com base em princípios ecológicos. Os sistemas agroecológicos, por sua vez, têm por objetivo a otimização da produção de forma a garantir a sustentabilidade do agroecossistema, conferindo qualidade e segurança ambiental. As técnicas de produção não precisam necessariamente ser as mais sofisticadas, entretanto devem atender às necessidades das práticas de cultivo... |
| Tipo: Livros |
Palavras-chave: Insetos-praga; Sistema Agroecológico; Agroecologic system; Policultivo; Polyculture; Resíduos culturais; Cultural waste; Algodão; Inseto Para Controle Biológico; Inimigo Natural; Praga; Biological control; Cotton; Insect pests; Natural enemies. |
| Ano: 2020 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1135898 |
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| Registros recuperados: 60 | |
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