Výsledky vyhledávání - "G J, Michels"

Airborne Remote Sensing to Detect Greenbug1Stress to Wheat

Autor: Doug Jones, Zhiming Yang, G. J. Michels, Mpho Phoofolo, K. L. Giles, Norman C. Elliott, Vasile Catana, Mustafa Mirik

Publikováno v: Southwestern Entomologist. 34:205-211

Vegetation indices calculated from the quantity of electromagnetic radiation reflected from plants measured using multi-spectral imaging systems have been used to quantify stress levels in plants. Greenbugs, Schizaphis graminum (Rondani), cause stres

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2a43f94d911db5541918c48aa6e14817
https://doi.org/10.3958/059.034.0301

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New Records for Aceria anthocoptes (Acari: Eriophyidae) Occurring on Canada Thistle in Colorado, Nebraska, and Wyoming, U.S.A

Autor: J. Lydon, G. J. Michels Jr., R. L. Renn, V. A. Carney, Ronald Ochoa

Publikováno v: Entomological News. 119:483-491

Canada thistle [Cirsium arvense (L.) Scop.] growing in eastern Colorado, Wyoming and western Nebraska were surveyed for the presence and distribution of Aceria anthocoptes (Nal.). Of the 34 sites surveyed in 2004, mites were abundant at 42%, present

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7ae6e509f2a4f1b92931687a549a4299
https://doi.org/10.3157/0013-872x-119.5.483

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Examining the competitive advantage of Diuraphis noxia (Hemiptera: Aphididae) biotype 2 over biotype 1

Autor: Scott C, Merrill, Terri L, Randolph, Frank B, Peairs, G J, Michels, C B, Walker

Publikováno v: Journal of economic entomology. 107(4)

The Russian wheat aphid, Diuraphis noxia (Kurdjumov) is a serious pest of small grains, such as wheat and barley. High population growth rates and a broad gramineae host range have allowed this aphid to successfully establish and become pestiferous a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::c47828436c31da6806fabeb580710ebb
https://pubmed.ncbi.nlm.nih.gov/25195438

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Sequential sampling for adult coccinellids in wheat

Autor: G. J. Michels, B. W. French, N. C. Elliot, R. W. Kieckhefer

Publikováno v: Entomologia Experimentalis et Applicata. 84:267-273

Adult aphidophagous coccinellids are important predators of cereal aphids in wheat in the Great Plains of the United States for which sampling methods are needed to facilitate improved management. An equation relating the mean number of adult coccine

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ca4801c2f3010a7d1df90cfb3a044f64
https://doi.org/10.1046/j.1570-7458.1997.00224.x

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Estimating Aphidophagous Coccinellid Populations in Alfalfa

Autor: N. C. Elliott, G. J. Michels

Publikováno v: Biological Control. 8:43-51

Precise yet time-efficient sampling methods for coccinellids would be useful in integrated pest management (IPM) research and decision-making in alfalfa. We compared quadrat sampling, removal sampling, counting coccinellids for a constant amount of t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::19f1653f1e3507ff37a18672b431b10d
https://doi.org/10.1006/bcon.1996.0493

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COMPARISONS OF TWO SYMMETRIC DENSITY FUNCTION SOLUTIONS OF APHID POPULATION GROWTH MODELS

Autor: James H. Matis, Alejandro C. Costamagna, W. van der Werf, T. R. Kiffey, Timothy I. Matis, G .J. Michels Jr.

Publikováno v: Conference on Applied Statistics in Agriculture.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c6c981c63333fe7d1966893ffc47fa89
https://doi.org/10.4148/2475-7772.1097

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USING THE CUMULATIVE-SIZE MECHANISTIC MODEL FOR ANALYZING INSECT DATA

Autor: M. N. Parajulee, Timothy I. Matis, James H. Matis, G .J. Michels Jr.

Publikováno v: Conference on Applied Statistics in Agriculture.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d66638b1f78d5b65eab0dfa2f436d4ba
https://doi.org/10.4148/2475-7772.1107

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IPM case studies: sorghum

Autor: G. J. Michels, J. D. Burd, Richard Harrington, H. F. van Emden

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::946d1776ee97be99d986a7a41a31d230
https://doi.org/10.1079/9780851998190.0627

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Control of Banks Grass Mite, 1988

Autor: G. J. Michels, R. W. Behle, J. B. Bible

Publikováno v: Insecticide and Acaricide Tests. 14:208-209

Three Capture treatments were applied to field corn at the High Plains Research Station near Etter, Tex., and evaluated for BGM control. Applications were made 12 Aug with a 4-nozzle hand-held spray boom to plots that were a single row 50 ft long. Ea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a77c2e187eb6c060b3953bb61f75a7f0
https://doi.org/10.1093/iat/14.1.208

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Economic Threshold Levels of the Mexican Bean Beetle on Pinto Beans in Wyoming12

Autor: C. C. Burkhardt, G. J. Michels

Publikováno v: Journal of Economic Entomology. 74:5-6

Caged bean plants were infested with 5, 10, 20, and 40 larvae of Epilachna varivestis Mulsant per plant and were compared to uninfested checks to determine the economic threshold level. Class damage and yield data indicated increased damage and loss

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::886cdf2a4236c71d7427d9e9f34dc507
https://doi.org/10.1093/jee/74.1.5

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