Show simple item record

dc.contributor.authorOlsen, M.
dc.contributor.authorRasmussen, S.
dc.contributor.authorNischwitz, C.
dc.contributor.authorKilby, M.
dc.contributor.editorWright, Glennen_US
dc.contributor.editorKilby, Mikeen_US
dc.date.accessioned2012-05-15T17:09:12Z
dc.date.available2012-05-15T17:09:12Z
dc.date.issued2000-10
dc.identifier.urihttp://hdl.handle.net/10150/223843
dc.description.abstractPowdery mildew of pecan, caused by Microsphaera ulni, results in discoloration of pecan shucks, but its effects on yield and quality of kernels are not known. In 1999, powdery mildew was observed on pecan shucks by the latter part of June in a commercial pecan orchard near Sahuarita, Arizona. The fungus continued to be active throughout the summer. However, results of a field test comparing diseased and healthy nuts from two varieties of pecans indicate that powdery mildew did not affect nut weight or quality. Whole nut weights, kernel weights, color ratings or percentage of discarded nuts were not significant between paired clusters of nuts that were treated with fungicides and remained disease free and untreated nuts that were infected with powdery mildew. Although shucks may have a high percentage of area covered by powdery mildew, results from this trial indicate that fungicide treatments are not warranted.
dc.language.isoen_USen_US
dc.publisherCollege of Agriculture, University of Arizona (Tucson, AZ)en_US
dc.relation.ispartofseriesAZ1178en_US
dc.relation.ispartofseriesSeries P-123en_US
dc.subjectAgriculture -- Arizonaen_US
dc.subjectCitrus fruits -- Arizonaen_US
dc.subjectPecan -- Arizonaen_US
dc.subjectPecan -- Diseasesen_US
dc.titleEffect of Powdery Mildew on Pecan Nut Weight and Qualityen_US
dc.typetexten_US
dc.typeArticleen_US
dc.identifier.journalCitrus and Deciduous Fruit and Nut Research Reporten_US
refterms.dateFOA2018-08-26T15:21:22Z
html.description.abstractPowdery mildew of pecan, caused by Microsphaera ulni, results in discoloration of pecan shucks, but its effects on yield and quality of kernels are not known. In 1999, powdery mildew was observed on pecan shucks by the latter part of June in a commercial pecan orchard near Sahuarita, Arizona. The fungus continued to be active throughout the summer. However, results of a field test comparing diseased and healthy nuts from two varieties of pecans indicate that powdery mildew did not affect nut weight or quality. Whole nut weights, kernel weights, color ratings or percentage of discarded nuts were not significant between paired clusters of nuts that were treated with fungicides and remained disease free and untreated nuts that were infected with powdery mildew. Although shucks may have a high percentage of area covered by powdery mildew, results from this trial indicate that fungicide treatments are not warranted.


Files in this item

Thumbnail
Name:
az1178-12-2000.pdf
Size:
17.23Kb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record