Výsledky vyhledávání - "R. M. Nowierski"

Infectivity of Pandora neoaphidis (Zygomycetes: Entomophthorales) to Acyrthosiphon pisum (Hom., Aphididae) in response to varying temperature and photoperiod regimes

Autor: R. M. Nowierski, T. J. Poprawski, M. G. Feng, Z. Zeng

Publikováno v: Journal of Applied Entomology. 123:29-35

The infectivity of the pea aphid, Acyrthosiphon pisum, by the aphid-specific entomophthoralean fungus, Pandora neoaphidis, was studied in environmental chambers using computer simulated late-season temperature and photoperiod patterns and an excised

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6b5545a83e8f26540804b7de1291ed7b
https://doi.org/10.1046/j.1439-0418.1999.00305.x

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Binomial Sequential Sampling Plans and Decision Support Algorithms for Managing the Russian Wheat Aphid (Homoptera: Aphididae) in Small Grains

Autor: Frank B. Peairs, R. M. Nowierski, L. R. Elberson, David E. Legg, Gary L. Hein, M. G. Feng, J. B. Johnson

Publikováno v: Journal of Economic Entomology. 87:1513-1533

A sequential-interval procedure was developed to calculate upper and lower stop values of binomial sequential sampling models for the Russian wheat aphid, Diuraphis noxia (Kurdjumov), infesting small grains. This procedure was developed for economic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d1aeaf74e095b78fb9091828d244ce23
https://doi.org/10.1093/jee/87.6.1513

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Binomial Regression Models for Spring and Summer Infestations of the Russian Wheat Aphid (Homoptera: Aphididae) in the Southern and Western Plains States and Rocky Mountain Region of the United States

Autor: G. W. Cuperus, Gary L. Hein, R. M. Nowierski, David E. Legg, M. Karner, Frank B. Peairs, M. G. Feng

Publikováno v: Journal of Economic Entomology. 85:1779-1790

Counts of Russian wheat aphid, Diuraphis noxia (Mordvilko), on winter and spring wheat, Triticum vulgare Vill. aestivum L., and spring barley, Hordeum vulgare L, from six states were described by the negative binomial distribution. These data were fi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4b96612c361441c6caa121c2c4dd95ef
https://doi.org/10.1093/jee/85.5.1779

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Spatial patterns and sampling plans for cereal aphids [Hom.: Aphididae] killed by entomophthoralean fungi and hymenopterous parasitoids in spring wheat

Autor: R. M. Nowierski, M. G. Feng

Publikováno v: Entomophaga. 37:265-275

Cereal aphids infesting spring wheat in southwestern Idaho were surveyed during 1988 and 1989 for the presence of entomophthoralean fungi and hymenopterous parasitoids. Cereal aphids killed by the fungi (cadavers) and parasitoids (mummies) includedDi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a97638ebae3e684ae3c5d4ee68f16ce9
https://doi.org/10.1007/bf02372427

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Epizootics caused by entomophthoralean fungi (Zygomycetes, Entomophthorales) in populations of cereal aphids (Hom., Aphididae) in irrigated small grains of southwestern Idaho, USA

Autor: M. G. Feng, J. B. Johnson, R. M. Nowierski, T. J. Poprawski

Publikováno v: Journal of Applied Entomology. 113:376-390

Each summer from 1986 to 1989, cereal aphids, particularly Metopolophium dirhodum (Walker), Sitobion avenae (F.) and Diuraphis noxia (Mordvilko), were subject to entomophthoralean mycoses in spring wheat, winter wheat and spring barley grown under ro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9c68d9b5e3ef2202293ae9953018ead9
https://doi.org/10.1111/j.1439-0418.1992.tb00678.x

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Long-term field evaluation of Mecinus janthinus releases against Dalmatian toadflax in Montana (USA)

Autor: Sharlene Sing, D. K. Weaver, G. P. Markin, R. M. Nowierski

The toadflax stem mining weevil, Mecinus janthinus Germar, was first released in the United States in Montana, in 1996. This agent has now become established to varying degrees after subsequent releases made at sites throughout the state. Multiple re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::13d12bca51a0cab4f31507ab6217e025
https://doi.org/10.1079/9781845935061.0620

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First Report of Spotted Knapweed (Centaurea maculosa) Stem Dieback Caused by Pseudomonas syringae

Autor: R. M. Nowierski, W. E. Grey, S. A. Kearing

Publikováno v: Plant Disease. 81:113-113

In June and July of 1995, stems of spotted knapweed (Centaurea maculosa) displayed dieback at two field locations near Bozeman, MT. Dieback developed after plant bolting and during apical bud development. Seedlings and plants in the rosette stage wer

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39be70ab12e013e0add0efc204dde667
https://doi.org/10.1094/pdis.1997.81.1.113b

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Estimation of Thermal Thresholds and Age-Specific Life Table Parameters for the Walnut Aphid (Homoptera: Aphididae) Under Field Conditions

Autor: J. S. Yaninek, R. M. Nowierski, Andrew Paul Gutierrez

Publikováno v: Environmental Entomology. 12:680-686

Methods arc presented for estimating upper and lower thermal thresholds for walnut aphid development from field data. Age-specific life table techniques are also applied to field data to examine the effects of favorable and unfavorable temperatures o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2e5b7274916e9f65ec41ce54bcbc5306
https://doi.org/10.1093/ee/12.3.680

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Numerical and Binomial Sampling Plans for the Walnut Aphid, Chromaphis juglandicola (Homoptera: Aphididae)

Autor: A. P. Gutierrez, R. M. Nowierski

Publikováno v: Journal of Economic Entomology. 79:868-872

Taylor’s Power Law was performed on mean and variance estimates of eggs and viviparae of walnut aphids, Chromaphis juglandicola (Kaltenbach). Highly significant correlation coefficients suggested that Taylor’s Power Law fit the data well. Means a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::97d2477811976edb4cd09c6688b6049c
https://doi.org/10.1093/jee/79.3.868

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