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| Publication Type:
| Report |
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| Author(s): | Holcomb, G. E.;
Fry, J. |
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| Author Affiliation: | Department of Plant Pathology and Crop Physiology; Department of Horticulture, LA Agricultural Experiment Station, LA State Agricultural Center, Baton Rouge, LA |
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| Title: | Reaction of St. Augustinegrass cultivars and selections to gray leaf spot |
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| Source: | Biological and Cultural Tests for Control of Plant. Vol. 6, 1991, p. 103. |
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| Publishing Information: | St. Paul, MN: The American Phytopathological Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Stenotaphrum secundatum; Gray leaf spot; Diseases; Pesticides
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| Abstract/Contents: | "Twenty-seven St. Augustinegrass cultivars and selections were planted in May 1990 in a plot at the LA State University Burden Research Plantation. The plot contained three blocks in which each selection occurred at random one time, for a total of three replications. Individual replications measured 5 x 10 ft. All entries were treated the same during the growing season in respect to mowing (twice a week through Oct at 2 inches, thereafter as needed), irrigation (as needed), and fertilization (1 lb N/1000 ft2 applied twice). Pesticides were not used routinely except for one application of oxidation after planting to reduce germination of annual weeds, and the use of glyphosate to keep the grasses within the 5 x 10 ft areas. Disease inoculum was from natural sources. Pyricularia grisea leaf spot counts were made Nov 27 by counting the total number of spots present in two random 25 cm2 areas of each replicate (six readings per entry). Data were subjected to an analysis of variance and Duncan's multiple range test. The highly significant F value indicated significant differences among the entries in their susceptibility to gray leaf spot. Selection MSA-21 was alone in being the most susceptible to leaf spot. All other entries ranged from slightly to moderately susceptible to leaf spot. Late summer and fall months were drier than usual in Baton Rouge, although overall rainfall for the year was normal." |
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| Language: | English |
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| References: | 0 |
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| Note: | Table |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Holcomb, G. E., and J. Fry. 1991. Reaction of St. Augustinegrass cultivars and selections to gray leaf spot. Biol. Cult. Tests Control Plant Dis. 6:p. 103. |
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MSU catalog number: SB 975 .B5 |
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