Persistent Link:
http://hdl.handle.net/10150/214973
Title:
Fungicide Performance for Control of Powdery Mildew on Lettuce in 2003
Author:
Matheron, Michael E.; Porchas, Martin
Issue Date:
Aug-2003
Publisher:
College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ)
Journal:
Vegetable Report
Abstract:
Powdery mildew on lettuce is caused by the fungus Golovinomyces cichoracearum (Erysiphe cichoracearum). This disease is favored by moderate to warm temperatures and dry weather conditions. Several potential new fungicides were evaluated for control of powdery mildew on lettuce in 2003. Powdery mildew appeared in our plots by Jan 9 and reached high levels by plant maturity on Feb 19. Compared to non-treated plants, all treatments significantly reduced the final severity of powdery mildew on lettuce statistically. However, only a limited number of compounds, such as Rally, Microthiol Disperss, Quinoxyfen, Flint, Zoxamide, Maneb, Pristine and Cabrio, provided the degree of disease control that would be of value to growers. The trial was intended to be a downy and powdery mildew trial; therefore, some of the treatments within this study were specifically included for downy mildew. No downy mildew developed; however, the downy mildew test products did offer some protection against powdery mildew.
Keywords:
Agriculture -- Arizona; Vegetables -- Arizona; Vegetables -- Plant pathogens
Series/Report no.:
AZ1323; Series P-136

Full metadata record

DC FieldValue Language
dc.titleFungicide Performance for Control of Powdery Mildew on Lettuce in 2003en_US
dc.contributor.authorMatheron, Michael E.en_US
dc.contributor.authorPorchas, Martinen_US
dc.date.issued2003-08-
dc.publisherCollege of Agriculture and Life Sciences, University of Arizona (Tucson, AZ)en_US
dc.identifier.journalVegetable Reporten_US
dc.description.abstractPowdery mildew on lettuce is caused by the fungus Golovinomyces cichoracearum (Erysiphe cichoracearum). This disease is favored by moderate to warm temperatures and dry weather conditions. Several potential new fungicides were evaluated for control of powdery mildew on lettuce in 2003. Powdery mildew appeared in our plots by Jan 9 and reached high levels by plant maturity on Feb 19. Compared to non-treated plants, all treatments significantly reduced the final severity of powdery mildew on lettuce statistically. However, only a limited number of compounds, such as Rally, Microthiol Disperss, Quinoxyfen, Flint, Zoxamide, Maneb, Pristine and Cabrio, provided the degree of disease control that would be of value to growers. The trial was intended to be a downy and powdery mildew trial; therefore, some of the treatments within this study were specifically included for downy mildew. No downy mildew developed; however, the downy mildew test products did offer some protection against powdery mildew.en_US
dc.subjectAgriculture -- Arizonaen_US
dc.subjectVegetables -- Arizonaen_US
dc.subjectVegetables -- Plant pathogensen_US
dc.identifier.urihttp://hdl.handle.net/10150/214973-
dc.relation.ispartofseriesAZ1323en_US
dc.relation.ispartofseriesSeries P-136en_US
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