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Publication Type:
| Report |
Author(s): | Wick, R. L.;
Nissenbaum, T. |
Author Affiliation: | Department of Microbiology, Morrill Science Center N203, University of Massachusetts, Amherst, MA 01003 |
Title: | Evaluation of DiTera soil injections for managing nematodes in turf, 1997 |
Section: | Turfgrasses Other records with the "Turfgrasses" Section
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Source: | Biological and Cultural Tests for Control of Plant. Vol. 13, 1998, p. 135. |
Publishing Information: | St. Paul, MN: The American Phytopathological Society |
# of Pages: | 1 |
Abstract/Contents: | "A putting green in Northfield, Massachusetts consisting of a mixture of annual bluegrass and creeping bentgrass was chosen for this study. Top-dresing over the years has resulted in approximately 4 in of sandy soil. Mechanical analysis of the top 4 in showed it to be 72% sand, 24% silt, and 2.9% clay. USDA criteria classify this soil as a coarse sandy loam. Twenty five plots, 6 x 6 ft provided five replications for 5 treatments. Three DiTera treatments were injected into the turf on 3 Jun. Injection was carried out with a Rogers Root Zone Injector which delivered solution at approximately 5,000 lb/sq in, to a depth of 4 to 8 in. Three DiTera treatments applied/1,000 ft² were: 0.58 lb formulated product, 1.16 lb formulated product, and 0.58 lb formulated product which received a second 0.58 lb on 14 Jul. DiTera is a 95% formulation consisting of dried fermentation solids and solubles of Myrothecium verrucaria (Abbott Laboratories, Long Grove, IL 60047). A single treatment of Nemacur, 2.3 lb/1,000 sq ft, was applied 6 Jun. Five plots served as untreated controls. All plots received approximately 0.5 in irrigation following Nemacur application. For nematode assays, ten subsamples per plot were collected with a 1 in soil sampling tube to a depth of 4 in and bulked. Nematodes were recovered by wet sieving/sugar flotation and identified to genus. The data were subjected to analysis of variance and a test of LSD. Plots were evaluated for color and thinning during each collection date. The season provided excellent growing conditions for turfgrass. There were no differences in turf color or thinning among the treatments. Nemacur suppressed Criconemella, Hoplolaimus and Tylenchorhynchus but by the last collection date nematodes populations had risen in this treatment. DiTera did not significantly reduce nematode populations but with the 1.16 lb rate, Criconemella tended to have a reduced population. The two lower treatment rates of DiTera resulted in a Hoplolaimus population that was higher in Aug than the control. Injection of DiTera into soil at the above rates did not effectively reduce populations of Criconemella, Hoplolaimus and Tylenchorhynchus." |
Language: | English |
References: | 0 |
Note: | Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Wick, R. L., and T. Nissenbaum. 1998. Evaluation of DiTera soil injections for managing nematodes in turf, 1997. Biol. Cult. Tests Control Plant Dis. 13:p. 135. |
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