Výsledky vyhledávání - "Leon W. Coles"

Bathyplectes stenostigma,1 a Parasite of the Alfalfa Weevil2 in Europe

Publikováno v: Annals of the Entomological Society of America. 64:1361-1367

Bathyplectes stenostigma (Thomson), a univoltine parasite of the alfalfa weevil, Hypera postica (Gyllenhal), discovered in Europe in 1961, is apparently native to northern and central Europe and is probably host-specific to the alfalfa weevil. Field

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e2fb43d575b58fa4ba434b828e111e54
https://doi.org/10.1093/aesa/64.6.1361

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Distribution of Microctonus aethiops and M. colesi, Parasites of the Alfalfa Weevil, in the Eastern United States124

Autor: W. H. Day, Leon W. Coles, Roger W. Fuester, J. A. Stewart

Publikováno v: Journal of Economic Entomology. 64:190-193

Recent research has shown that both species of parasites are much more widely established than was previously known. M. aethiops (Nees), a bivoltine, biparental parasite of adult Hypera postica (Gyllenhal), is now present in at least 47 counties in 1

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::626d6acd2897473f88b33fa65cffe60f
https://doi.org/10.1093/jee/64.1.190

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Host Preference, Longevity, Developmental Period and Sex Ratio of Aphelinus asychis1 with Three Sorghum-Fed Species of Aphids2 Held at Controlled Temperatures3

Autor: Harley G. Raney, Kennth J. Starks, Robert D. Morrison, Leon W. Coles, R. D. Eikenbary

Publikováno v: Annals of the Entomological Society of America. 64:169-176

Laboratory studies of Aphelinus asychis (Walker), an imported, internal parasite of aphids, conducted at 5 controlled temperatures showed the preference of the parasite for the aphid species in descending order to be: greenbug, Schizaphis graminum (R

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d441ef1d695b9019d2f651e63dd41e8b
https://doi.org/10.1093/aesa/64.1.169

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Wheat Stem Sawfly Parasites, Collyria calcitrator and Pediobius nigritarsis, in Eastern United States

Autor: Leon W. Coles, Frederick A. Streams

Publikováno v: Journal of Economic Entomology. 58:303-306

From 1935–38 Collyria calcitrator (Gravenhorst), a parasite of the European wheat stem sawfly, Cephus pygmaeus (L.), was released in Eastern United States by the USDA but not recovered until 1957, when adults of Collyria calcitrator were collected

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::52ef21fac717957120c18aec8070c554
https://doi.org/10.1093/jee/58.2.303

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Two Potential Parasites of the Mexican Bean Beetle from India13

Autor: Leon W. Coles, George W. Angalet, James A. Stewart

Publikováno v: Journal of Economic Entomology. 61:1073-1075

Two parasites of Henosepilaehna sparsa (Herbst) from India were tested against the Mexican bean beetle, Epilachna Varivestis Mulsant, at the Insect Identification and Parasite Introduction Research Branch, Moorestown, N. J. Tetrastiehus ovulorum Ferr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3df205d9d6ececf65dacc5a5c5431c96
https://doi.org/10.1093/jee/61.4.1073

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Status of the Alfalfa Weevil Biological Control Program in the Eastern United States

Autor: Benjamin Puttler, Leon W. Coles

Publikováno v: Journal of Economic Entomology. 56:609-611

The alfalfa weevil ( Hypera postica (Gyllenhal)) became established in the eastern United States in 1952. The parasite, Bathyplectes curculionis (Thomson), successfully established in Utah in 1911, has now been generally established in the East. Rece

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c9eb373dda67b339c64f0cc8b8e2a21f
https://doi.org/10.1093/jee/56.5.609

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Introduction, Colonization, and Establishment of Bathyplectes curculionis, a Parasite of the Alfalfa Weevil in the Eastern United States

Autor: Leon W. Coles, D. W. Jones, Benjamin Puttler

Publikováno v: Journal of Economic Entomology. 54:878-880

Bathyplectes curculionis (Thomson), a parasite of the alfalfa weevil ( Hypera postica (Gyllenhal)), was introduced into the eastern United States in 1959 and 1900. Recoveries in 1900 from 1959 releases indicate its establishment in several release si

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ec7782dc72017000ab45115e482eb555
https://doi.org/10.1093/jee/54.5.878

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