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Showing 1 to 17 of 17 for “"Cecidomyiidae"”.
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Olfactory responses of Dasineura Dielsi Rübsaamen (Diptera: Cecidomyiidae) females to host plant volatiles
In 2001, Dasineura dielsi (Diptera: Cecidomyiidae), a gall midge, was introduced into South Africa as a biological control agent on the invasive alien plant species, Acacia cyclops (Mimosaceae). An investigation was launched to test the following hypotheses: 1) the midges respond to the scent of A. …
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Ecological and Evolutionary Consequences of Variation in Clutch Size in Asteromyia Carbonifera (o.s.) (Diptera: Cecidomyiidae)
The gall-midge Asteromyia carbonifera induces blister-like galls on the leaves of Canadian goldenrod, Solidago canadensis (Compositae). Female midges deposit one to five offspring per gall. During their brief adult existence, females produce a number of galls. The number of eggs laid at each …
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Taxonomy and Life History of Gall Midges (Diptera, Cecidomyiidae) on Drosanthemum and Malephora (Aizoaceae) in South Africa
… Africa, and much work is still to be done on the Cecidomyiidae of South Africa as a whole. Further targeted sampling may reveal greater distribution ranges and additional host plants for the five species described here, as well as many more undescribed species across the Aizoaceae.
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Estudo taxonômico dos Cecidomyiidae (Diptera) associados a galhas de Myrtaceae na Restinga da Barra de Maricá, Rio de Janeiro
… each one made by a distinct species of Cecidomyiidae. Besides these gallmakers, seven inquiline or predator species of Cecidomyiidae were also found. As result of this study three new genera and eleven new species of Cecidomyiidae were found and described on papers already published or …
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Cecidomyiinae (Diptera, Cecidomyiidae) das restingas da Barra de Maricá, Itaipuaçu e Carapebus (Rio de Janeiro, Brasil): descrições e dados biológicos
At "restingas" of Barra de Maricá, Itaipuaçu and Carapebus, 108 species of Cecidomyiinae were found in association with 53 plant species distributed among 42 genera and 32 families. 93 Cecidomyiinae species were cecidogenous, 4 predators, 5 inquilines of galls and 6 had free living larvae . Gall …
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Seed-reducing Cecidomyiidae as potential biological control agents for invasive Australian wattles in South Africa, particularly Acacia mearnsii and A. cyclops
The collection of gall-forming Cecidomyiidae specimens and their parasitoids from Australia and South Africa during this project produced a large and valuable assemblage of material, most of which will be or has been lodged with the National Insect Collection (Pretoria) (parasitoids) or the South …
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Investigation into the effects of parasitoids on a gall midge Dasineura sp. (Cecidomyiidae), a biological control agent of Australian myrtle, Leptospermum laevigatum
… wide-spread. The second agent a Dasineura sp (Cecidomyiidae) gall midge whose origin in unknown but was probably introduced accidentally. As it was not screened before release an investigation into the effect of parasitism on its effectiveness as a control agent is important. Midges were found …
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Patterns of parasitism and emergence in the gall midge Dasineura Dielsii (Diptera: Cecidomyiidae) : a biological control agent of Acacia cyclops in South Africa
Acacia cyclops A. Cunn. ex G. Don is an invasive alien plant that invades fynbos and coastal dunes. Several acacia species are grown commercially in South Africa and this has limited biocontrol agents to those that reduce only reproductive capacity. Dasineura dielsii was released in 2002 as a …
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Identificación e incidencia del agallador del botón floral (Díptera: Cecidomyiidae) de loroco (Fernaldia Pandurata Woodson.) en zonas productoras de los departamentos de La Libertad, Chalatenango y San Vicente
… del agallador del botón floral (Diptera: Cecidomyiidae), sus posibles enemigos naturales y la incidencia e impacto en las zonas de estudio.Esta se realizó en dos fases: fase de campo, que comprendió en realizar una encuesta a los productores para conocer la problemática, la búsqueda de …
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Investigating the natural history and predator complex of the native pine bark adelgid (Pineus strobi) in southwestern Virginia
… are adelgid specialists. Members of the families Cecidomyiidae, Coccinellidae, Chrysopidae, Hemerobiidae, and Syrphidae were also recovered. Most diverse were the Cecidomyiidae, with 15 different species inferred from their DNA barcodes. Additional work was performed to quantify supercooling …
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Assessing the drivers of adaptive radiation in a complex of gall midges: A multitrophic perspective on ecological speciation
… species <i>Asteromyia carbonifera</i> (Diptera: Cecidomyiidae), which appears to be in the throes of an incipient adaptive radiation on its host plant, goldenrod (<i>Solidago</i>). This galler uses a symbiotic fungus (<i>Botryosphaeria dothidae</i>) as a food source and as the major structural …
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Biological and Agronomic Aspects of Two Insect Predators of Switchgrass
… midge (Chilophaga virgati Gagné: Diptera: Cecidomyiidae) feeds above the last internode of the tiller, causing seed yield and biomass loss. There were two objectives for this study: (1) to determine genetic and temporal variation among cultivars for frequency of tiller infestation by …
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The role of chemicals in the location of host plants by midge pests of UK fruit crops
Gall midges (Diptera: Cecidomyiidae) are important pests of many horticultural crops. They are difficult to control by conventional means as the larvae develop in galls surrounded by plant tissue. Gravid females need to locate suitable host plant material on which to lay their eggs and there is …
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The chemical diversity of midge pheromones
Midges (Diptera: Cecidomyiidae) are pests of many economically valuable agricultural crops. The female sex pheromones of several midge species have been identified and the hypothesis was that midge sex pheromones could be chemically more diverse in structure than previously thought. This hypothesis …
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Insects in mountainous landscapes: Implications of landscape context and climate change
… and a (undescribed) gall midge (Diptera: Cecidomyiidae) were recorded in 2010 and 2011. In 2011, cecidomyiid galls were collected to investigate the cecidomyiid and its parasitoid Gastrancistrus sp. (Hymenoptera: Pteromalidae). Habitat suitability and patch-level extinctions and …
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Characterization of Hessian fly from Israel
… a gall midge and a member of the Dipteran family Cecidomyiidae. It is a common pest of wheat found throughout all of the major wheat growing areas of the world and poses a serious economic threat to the United States (US), particularly in the Southeast winter wheat region. Damage to wheat is done …
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Análisis de la biodiversidad funcional de enemigos naturales de plagas de un paisaje vitícola mediterráneo
… Staphylinidae, Formicidae, Forficulidae y Cecidomyiidae tuvo correlación con diversos índices de paisaje y, por tanto, con la heterogeneidad del mismo, cuantificada a través de dichos índices. La familia de arañas Lycosidae mostró el mayor nivel de correlación observado en el presente …