Index Catalog // ScholarsArchive@OSU

Potential of Trichoderma sp. for inhibition of Botrytis cinerea and Sclerotinia sclerotiorum on snap beans

Creator:: Nelson, Mark E.
Abstract:: Isolates of Trichoderma spp. collected from snap bean foliage were tested for inhibition of grey mold of snap beans caused by Botrytis cinerea. In a detached blossom-pod assay an isolate of Trichoderma hamatum reduced pod rot by 94% compared to the nontreated check. Control was comparable to that obtained with...
Resource Type:: Masters Thesis
Full Text:: cinerea and Sclerotinia sclerotiorum on snap beans AN ABSTRACT OF THE THESIS OF Mark E. Nelson for the

Meta-Analysis Reveals a Critical Period for Management of Powdery Mildew on Hop Cones

Creator:: Nelson, Mark E., Gent, David H., and Grove, Gary G.
Abstract:: Results of 28 field trials conducted over a 12-year period investigating management of hop powdery mildew caused by Podosphaera macularis were quantitatively summarized by meta-analysis to compare product efficacy and use patterns by mode of action as defined by Fungicide Resistance Action Committee (FRAC) groups. Availability of original observations enabled...
Resource Type:: Article
Full Text:: Hop Cones Nelson, M. E., Gent, D. H., & Grove, G. G. (2015). Meta-analysis reveals a critical

GentInteractionBasalFoliageSuppTable2.pdf

Creator:: Gent, David H., Probst, Claudia, Nelson, Mark E., Grove, Gary G., Massie, Stephen T., and Twomey, Megan C.
Abstract:: Canopy management is an important aspect of control of powdery mildew diseases and may influence the intensity of fungicide applications required to suppress disease. In hop, powdery mildew (caused by Podosphaera macularis) is most damaging to cones when infection occurs during bloom and the juvenile stages of cone development. Experiments...

GentInteractionBasalFoliageSuppTable1.pdf

Creator:: Gent, David H., Probst, Claudia, Nelson, Mark E., Grove, Gary G., Massie, Stephen T., and Twomey, Megan C.
Abstract:: Canopy management is an important aspect of control of powdery mildew diseases and may influence the intensity of fungicide applications required to suppress disease. In hop, powdery mildew (caused by Podosphaera macularis) is most damaging to cones when infection occurs during bloom and the juvenile stages of cone development. Experiments...

GentInteractionBasalFoliage.pdf

Creator:: Gent, David H., Probst, Claudia, Nelson, Mark E., Grove, Gary G., Massie, Stephen T., and Twomey, Megan C.
Abstract:: Canopy management is an important aspect of control of powdery mildew diseases and may influence the intensity of fungicide applications required to suppress disease. In hop, powdery mildew (caused by Podosphaera macularis) is most damaging to cones when infection occurs during bloom and the juvenile stages of cone development. Experiments...
Full Text:: ; Claudia Probst, Mark E. Nelson, and Gary G. Grove, Department of Plant Pathology, Washington State

Interaction of Basal Foliage Removal and Late-Season Fungicide Applications in Management of Hop Powdery Mildew

Creator:: Gent, David H., Probst, Claudia, Nelson, Mark E., Grove, Gary G., Massie, Stephen T., and Twomey, Megan C.
Abstract:: Canopy management is an important aspect of control of powdery mildew diseases and may influence the intensity of fungicide applications required to suppress disease. In hop, powdery mildew (caused by Podosphaera macularis) is most damaging to cones when infection occurs during bloom and the juvenile stages of cone development. Experiments...
Resource Type:: Article

Association of Spring Pruning Practices with Severity of Powdery Mildew and Downy Mildew on Hop

Creator:: Gent, David H., Nelson, Mark E., Grove, Gary G., Mahaffee, Walter F., Turechek, William W., and Woods, Joanna L.
Abstract:: Downy mildew (caused by Pseudoperonospora humuli) and powdery mildew (caused by Podosphaera macularis) are important diseases of hop in the Pacific Northwest United States, and cultural practices may affect the severity of both diseases. The association of spring pruning quality and timing with severity of downy mildew and powdery mildew...
Resource Type:: Article
Full Text:: , and Department of Botany and Plant Pathology, Oregon State University, Corvallis 97331; Mark E. Nelson

WolfenbargerDistributionCharacterizationPodosphaeramacularisSuppFigureS1.pdf

Creator:: Wolfenbarger, Sierra N., Massie, Stephen T., Ocamb, Cynthia, Eck, Emily B., Grove, Gary G., Nelson, Mark E., Probst, Claudia, Twomey, Megan C., and Gent, David H.
Abstract:: Host resistance, both quantitative and qualitative, is the preferred long-term approach for disease management in many pathosystems, including powdery mildew of hop (Podosphaera macularis). In 2012, an epidemic of powdery mildew occurred in Washington and Idaho on previously resistant cultivars whose resistance was putatively based on the gene designated R6....

WolfenbargerDistributionCharacterizationPodosphaeramacularis.pdf

Creator:: Wolfenbarger, Sierra N., Massie, Stephen T., Ocamb, Cynthia, Eck, Emily B., Grove, Gary G., Nelson, Mark E., Probst, Claudia, Twomey, Megan C., and Gent, David H.
Abstract:: Host resistance, both quantitative and qualitative, is the preferred long-term approach for disease management in many pathosystems, including powdery mildew of hop (Podosphaera macularis). In 2012, an epidemic of powdery mildew occurred in Washington and Idaho on previously resistant cultivars whose resistance was putatively based on the gene designated R6....
Full Text:: , Department of Botany and Plant Pathology;Gary G. Grove, Mark E. Nelson, and Claudia Probst, Washington State

Distribution and Characterization of Podosphaera macularis Virulent on Hop Cultivars Possessing R6-Based Resistance to Powdery Mildew

Creator:: Wolfenbarger, Sierra N., Massie, Stephen T., Ocamb, Cynthia, Eck, Emily B., Grove, Gary G., Nelson, Mark E., Probst, Claudia, Twomey, Megan C., and Gent, David H.
Abstract:: Host resistance, both quantitative and qualitative, is the preferred long-term approach for disease management in many pathosystems, including powdery mildew of hop (Podosphaera macularis). In 2012, an epidemic of powdery mildew occurred in Washington and Idaho on previously resistant cultivars whose resistance was putatively based on the gene designated R6....
Resource Type:: Article

ScholarsArchive@OSU

Potential of Trichoderma sp. for inhibition of Botrytis cinerea and Sclerotinia sclerotiorum on snap beans

Meta-Analysis Reveals a Critical Period for Management of Powdery Mildew on Hop Cones

GentInteractionBasalFoliageSuppTable2.pdf

GentInteractionBasalFoliageSuppTable1.pdf

GentInteractionBasalFoliage.pdf

Interaction of Basal Foliage Removal and Late-Season Fungicide Applications in Management of Hop Powdery Mildew

Association of Spring Pruning Practices with Severity of Powdery Mildew and Downy Mildew on Hop

WolfenbargerDistributionCharacterizationPodosphaeramacularisSuppFigureS1.pdf

WolfenbargerDistributionCharacterizationPodosphaeramacularis.pdf

Distribution and Characterization of Podosphaera macularis Virulent on Hop Cultivars Possessing R6-Based Resistance to Powdery Mildew

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