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Showing 1 to 20 of 60 for “"curculionidae"”.
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A revision of the genus Listronotus (Curculionidae, Coleoptera)
Dissertation (Ph.D.)--University of Kansas, Entomology, 1938.
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The biology of Sternechus paludatus (Casey) (Coleoptera-Curculionidae)
Thesis (M.A.)--University of Kansas, Entomology, 1932.
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Evolutionary Studies in the Weevil Genus Lixus (Coleoptera, Curculionidae)
Made available in DSpace on 2014-12-05T21:34:04Z (GMT). No. of bitstreams: 1 6104328.pdf: 3550653 bytes, checksum: 991674c7f5341e192f80c3c57037fbea (MD5) Previous issue date: 1961
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Effects of a dual application of entomopathogenic nematodes and entomopathogenic fungi against a forest pest, Hylobius abietis L. (Coleoptera: Curculionidae) and a horticultural pest, Otiorhynchus sulcatus F. (Coleoptera: Curculionidae)
Entomopathogenic nematodes (EPN) and entomopathogenic fungi (EPF) are pathogens which require an insect host to fulfil their life cycle and are commonly used as biocontrol agents. Studies have shown that a combination of EPN and EPF can result in greater insect mortality when compared to the agents …
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Behavioural interactions between the large pine weevil, Hylobius abietis L.(Coleoptera: Curculionidae), and entomopathogenic nematodes
… pine weevil, Hylobius abietis L. (Coleoptera: Curculionidae), a major pest in Irish forestry. Applications of EPN to tree stumps in Ireland and the UK have been shown to significantly reduce adult H. abietis populations emerging from the stumps. To date however, little work had been done on the …
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Are Weevils Picky Eaters? Community Structure and Host Specificity of Neotropical Saproxylic Beetles (Coleoptera: Curculionidae)
<p>Abstract Primary saproxylic beetles play a major role in forest nutrient cycling and making deadwood accessible to other decomposers. Understanding beetle host preferences and patterns of community assembly is critical for their conservation, and for predicting which species might become …
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Reproduction and development of the black vine weevil (Coleoptera: Curculionidae) in relation to environmental factors
Otiorhynchus sulcatus (Fabricius) is a serious pest of various horticultural crops in the United States. Despite its economic importance, this pest remains very challenging to manage. Integrated Pest Management Program for O. sulcatus has not yet been implemented due to lack of accurate information …
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The seasonal occurrence, soil distribution and flight characteristics of Curculio sayi (Coleoptera: Curculionidae) in mid-Missouri
Chestnut trees were once a dominant sight across the deciduous forest of the eastern and central United States, but following a devastating blight in the early 1900's much of the native range for this tree species has been lost. As interest in the restoration of the American chestnut tree …
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Ecological impact of entomopathogenic nematodes used to control the large pine weevil, Hylobius abietis (Coleoptera: Curculionidae)
… large pine weevil (Hylobius abietis; Coleoptera: Curculionidae) is one of the most economically damaging pests in forestry across Northern Europe. Its larvae develop in coniferous tree stumps on clearfell sites and adult weevils feed on seedlings that are replanted on these sites, causing …
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Development of female sex organs during aestivation in the alfalfa weevil, Hypera postica (Gyll.) (Coleoptera, Curculionidae)
Laboratory studies and field observations were conducted to ascertain the development of the female sex organs of the alfalfa weevil during aestivation, to study the role of this aestivation on sexual development, and to investigate the factors responsible for this interaction. Measurements of …
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Insectos de la familia Curculionidae asociados al bosque de pino del municipio de San Fernando, Nueva Segovia
Los insectos de la familia Curculionidae son conocidos fitófagos y algunos son plagas dañinas para la agricultura. Ante la escasa información sobre estos insectos y su importancia en el funcionamiento del ecosistema de pinares se realizó el presente estudio para determinar la composición, …
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The reproductive seasonality and flight capability of Sitona discoideus Gyllenhal (Coleoptera: Curculionidae) and its pattern of larval establishment in Canterbury lucerne
In order to improve the level of understanding of the reproductive seasonality and flight potential of Silona discoideus Gyllenhal, samples were taken at regular intervals from lucerne (Medicago saliva L.) stands throughout the 1982-83 and 1983-84 seasons. Changes in the weevil's reproductive …
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Biochemical Separation of Geographical Strains of Plum Curculio, Conotrachelus nenuphar (Herbst) (Coleoptera: Curculionidae), and Evaluation of Olfactory Attractants in Virginia Orchards
Plum curculio, Conotrachelus nenuphar (Herbst), is an endemic pest of stone and pome crops of the eastern United States. Two morphologically identical strains of plum curculio have been described and documented in Virgina: a univoltine strain and a multivoltine strain. Because of the cryptic …
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Development and evaluation of trapping studies for Hylobius pales (Herbst) and Pissodes nemorensis Germar (Coleoptera: curculionidae) in Virginia Christmas tree plantations
The pales weevil, Hylobius pales (Herbst), and the deodar weevil, Piss odes nemorensis Germar, are regeneration pests of pine plantations in the eastern United States. Attempts to sample regeneration weevils in Virginia have met with little success. Two trap types were field tested to determine …
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