Downy Mildew of Broccoli - Promising New Fungicides for Disease Control
| dc.contributor.author | Matheron, M. E. | |
| dc.contributor.author | Matejka, J. C. | |
| dc.contributor.editor | Oebker, Norman F. | en_US |
| dc.contributor.editor | Kingdon, Lorraine B. | en_US |
| dc.date.accessioned | 2012-05-01T17:39:42Z | |
| dc.date.available | 2012-05-01T17:39:42Z | |
| dc.date.issued | 1987-05 | |
| dc.identifier.uri | http://hdl.handle.net/10150/221432 | |
| dc.description.abstract | Downy mildew of broccoli, caused by the fungus Peronospora parasitica, is a perennial disease problem affecting winter broccoli production in Arizona. During 1985-87, potential systemic fungicides were evaluated in the field for disease control. In the 1985-86 season, a period of high disease incidence, lesion development was significantly reduced by fosetyl-Al (44 %), phosphorous acid (42 %), oxadixyl + mancozeb (35 %), chlorothalonil (33 %), metalaxyl + mancozeb (30 %) and metalaxyl + chlorothalonil (28 %). During the 1986 -87 growing season, disease incidence was low and lesion development was significantly reduced by phosphorous acid (82 %), fosetyl -Al or oxadixyl + chlorothalonil (77 %), metalaxyl + chlorothalonil (68 %) and chlorothalonil (54 %). Fosetyl-Al, phosphorous acid and oxadixyl were as effective as currently available fungicides ( metalaxyl and chlorothalonil) for control of downy mildew of broccoli in Arizona. | |
| dc.language.iso | en_US | en_US |
| dc.publisher | College of Agriculture, University of Arizona (Tucson, AZ) | en_US |
| dc.relation.ispartofseries | Series P-70 | en_US |
| dc.relation.ispartofseries | 370070 | en_US |
| dc.subject | Agriculture -- Arizona | en_US |
| dc.subject | Vegetables -- Arizona | en_US |
| dc.subject | Broccoli -- Arizona | en_US |
| dc.subject | Broccoli -- Diseases | en_US |
| dc.title | Downy Mildew of Broccoli - Promising New Fungicides for Disease Control | en_US |
| dc.type | text | |
| dc.type | Article | |
| dc.identifier.journal | Vegetable Report | en_US |
| refterms.dateFOA | 2018-06-18T05:45:02Z | |
| html.description.abstract | Downy mildew of broccoli, caused by the fungus Peronospora parasitica, is a perennial disease problem affecting winter broccoli production in Arizona. During 1985-87, potential systemic fungicides were evaluated in the field for disease control. In the 1985-86 season, a period of high disease incidence, lesion development was significantly reduced by fosetyl-Al (44 %), phosphorous acid (42 %), oxadixyl + mancozeb (35 %), chlorothalonil (33 %), metalaxyl + mancozeb (30 %) and metalaxyl + chlorothalonil (28 %). During the 1986 -87 growing season, disease incidence was low and lesion development was significantly reduced by phosphorous acid (82 %), fosetyl -Al or oxadixyl + chlorothalonil (77 %), metalaxyl + chlorothalonil (68 %) and chlorothalonil (54 %). Fosetyl-Al, phosphorous acid and oxadixyl were as effective as currently available fungicides ( metalaxyl and chlorothalonil) for control of downy mildew of broccoli in Arizona. |
