Search Results - "Ngugi, H. K."

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  1. 1

    Reliability and accuracy of visual methods to quantify severity of foliar bacterial spot symptoms on peach and nectarine by Bardsley, S. J, Ngugi, H. K

    Published in Plant pathology (01-04-2013)
    “…The objectives of this study were to assess the reliability and accuracy of visual methods used to quantify the severity of bacterial spot (Xanthomonas…”
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    Journal Article
  2. 2

    Prevalence and factors associated with aflatoxin contamination of peanuts from Western Kenya by Mutegi, C.K., Ngugi, H.K., Hendriks, S.L., Jones, R.B.

    Published in International journal of food microbiology (15-03-2009)
    “…Aflatoxin contamination of peanuts poses a risk to human health and has been identified as a major constraint to trade in eastern Africa. A survey was carried…”
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    Journal Article
  3. 3

    Factors associated with the incidence of Aspergillus section Flavi and aflatoxin contamination of peanuts in the Busia and Homa bay districts of western Kenya by Mutegi, C. K., Ngugi, H. K., Hendriks, S. L., Jones, R. B.

    Published in Plant pathology (01-12-2012)
    “…The aim of this study was to identify agronomic, ecological and sociocultural factors that could be modified to reduce the risk of aflatoxin contamination of…”
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    Journal Article
  4. 4

    Bayesian Approach to Meta-Analysis of Plant Pathology Studies by Mila, A.L, Ngugi, H.K

    Published in Phytopathology (2011)
    “…Bayesian statistical methods are used for meta-analysis in many disciplines, including medicine, molecular biology, and engineering, but have not yet been…”
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    Journal Article Conference Proceeding
  5. 5

    Trends in Theoretical Plant Epidemiology by Scherm, H, Ngugi, H.K, Ojiambo, P.S

    Published in European journal of plant pathology (01-05-2006)
    “…We review trends and advances in three specific areas of theoretical plant epidemiology: models of temporal and spatial dynamics of disease, the synergism of…”
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    Journal Article Conference Proceeding
  6. 6

    Pollen mimicry during infection of blueberry flowers by conidia of Monilinia vaccinii-corymbosi by Ngugi, H.K., Scherm, H.

    “…Infection of blueberry flowers by Monilinia vaccinii-corymbosi, which causes mummy berry disease, occurs via the gynoecium and involves conidial germination on…”
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    Journal Article
  7. 7

    Use of survival analysis to assess management options for ray blight in Australian pyrethrum fields by Pethybridge, S.J, Ngugi, H.K, Hay, F.S

    Published in Plant pathology (01-06-2010)
    “…The effects of fungicide, cultivar and plant density on the time-to-death of pyrethrum flowers affected by ray blight (caused by Phoma ligulicola var…”
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    Journal Article
  8. 8

    Relationships between blueberry flower age, pollination, and conidial infection by Monilinia vaccinii-corymbosi by NGUGI, H. K, SCHERM, H, LEHMAN, J. S

    Published in Phytopathology (01-10-2002)
    “…ABSTRACT Monilinia vaccinii-corymbosi infects open blueberry flowers via the gynoecial pathway, leading to mummification of the developing fruit. To determine…”
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    Journal Article
  9. 9

    Multiple Treatment Meta-Analysis of Products Evaluated for Control of Fire Blight in the Eastern United States by Ngugi, H.K, Lehman, B.L, Madden, L.V

    Published in Phytopathology (01-05-2011)
    “…The aim of this analysis was to estimate the effect sizes and consistency of products evaluated for fire blight control in the eastern United States over the…”
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    Journal Article
  10. 10

    Simultaneous temporal progress of sorghum anthracnose and leaf blight in crop mixtures with disparate patterns by NGUGI, H. K, KING, S. B, HOLT, J, JULIAN, A. M

    Published in Phytopathology (01-08-2001)
    “…Field studies were conducted at Alupe in western Kenya in 1995 and 1996 to evaluate the efficacy of crop and species mixtures for the management of sorghum…”
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    Journal Article
  11. 11

    Distribution of Pseudosclerotia of Monilinia vaccinii-corymbosi and Risk of Apothecial Emergence Following Mechanical Cultivation by Ngugi, H K, Scherm, H, Nesmith, D S

    Published in Phytopathology (01-08-2002)
    “…ABSTRACT Pseudosclerotia (infected, mummified fruit) of Monilinia vacciniicorymbosi overwinter on the orchard floor and germinate to produce apothecia in early…”
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    Journal Article
  12. 12
  13. 13

    Biological control of infection of blueberry flowers caused by Monilinia vaccinii-corymbosi by Scherm, H, Ngugi, H.K, Savelle, A.T, Edwards, J.R

    Published in Biological control (01-02-2004)
    “…Monilinia vaccinii-corymbosi, the fungus that causes mummy berry disease, infects open blueberry flowers via the stigma–style pathway, followed by internal…”
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    Journal Article
  14. 14

    Effect of flower-applied Serenade biofungicide ( Bacillus subtilis) on pollination-related variables in rabbiteye blueberry by Ngugi, H.K., Dedej, S., Delaplane, K.S., Savelle, A.T., Scherm, H.

    Published in Biological control (2005)
    “…Application of Serenade, a commercial biofungicide formulation containing the bacterium Bacillus subtilis, to the stigmatic surface of open blueberry flowers…”
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    Journal Article
  15. 15

    Orchard Factors Associated with Resistance and Cross Resistance to Sterol Demethylation Inhibitor Fungicides in Populations of Venturia inaequalis from Pennsylvania by PFEUFER, Emily E, NGUGI, Henry K

    Published in Phytopathology (01-03-2012)
    “…Orchard management practices, such as destroying of overwintered inoculum and limiting the number of fungicide applications, are often recommended as tactics…”
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    Journal Article
  16. 16

    Biology of Flower-Infecting Fungi by Ngugi, H.K, Scherm, H

    Published in Annual review of phytopathology (01-01-2006)
    “…The ability to infect host flowers offers important ecological benefits to plant-parasitic fungi; not surprisingly, therefore, numerous fungal species from a…”
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    Journal Article
  17. 17

    Meta-Analysis to Determine the Effects of Plant Disease Management Measures: Review and Case Studies on Soybean and Apple by Ngugi, Henry K, Esker, Paul D, Scherm, Harald

    Published in Phytopathology (2011)
    “…The continuing exponential increase in scientific knowledge, the growing availability of large databases containing raw or partially annotated information, and…”
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    Journal Article Conference Proceeding
  18. 18

    Reliability and accuracy of visual methods used to quantify foliar symptoms of bacterial spot of peach and nectarine by Bardsley, S J, Ngugi, H K

    Published in Phytopathology (01-06-2010)
    “…Bacterial spot caused by Xanthomonas arboricola pv. pruni is the most important bacterial disease of peach and nectarine in Pennsylvania and severe epidemics…”
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    Journal Article
  19. 19

    Evaluation of leaf removal timing and method and gibberellic acid for grape bunch rot management by Hed, B, Ngugi, H K, Travis, J W

    Published in Phytopathology (01-06-2010)
    “…Bunch rot caused by Botrytis cinerea is an important disease of wine grapes worldwide. Bunch rot development is strongly influenced by the compactness of…”
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    Journal Article
  20. 20

    Correlation of Erwinia amylovora virulence characteristics to disease severity in fire blight in apple trees and seedlings by Lee, SA, Ngugi, H K, McNellis, T W

    Published in Phytopathology (01-06-2010)
    “…Bacterial plant pathogens have a major impact on crop production. E. amylovora, a gram-negative bacterium, is the causal agent of fire blight. Fire blight is…”
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    Journal Article