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| Publication Type:
| Report |
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| Author(s): | Baxendale, F. P.;
Shearman, R. C.;
Wit, L. A. |
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| Author Affiliation: | Dept. of Entomology and Dept of Horticulture, Univ. Of Nebraska |
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| Title: | Influence of Varying Amounts of Postapplication Irrigation on Northern Masked Chafer Control, 1988. |
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| Source: | Insecticide and Acaricide Tests. Vol. 14, 1989, p. 312. |
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| Publishing Information: | Lanham, MD: Entomological Society of America |
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| Keywords: | TIC Keywords: Poa pratensis; Agrostis stolonifera; Cyclocephala borealis; Thatch
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| Abstract/Contents: | "Fourteen insecticides were applied on 9 Aug to 5- by 10-ft plots of Kentucky bluegrass on a golf course in Lincoln, Nebr. Topography in the treated area consisted of a series of gentle slopes. The predominant grass species was Kentucky bluegrass (90%), with 5% creeping bentgrass in one replicate and a few weeds present. Thatch accumulation (finger compressed) ranged from 0.5 to 0.75 inches. Field conditions at the time of application were as follows: Air temperature, 82 degrees F; soil temperature (3-inch depth), 85 degrees F; soil type, silty clay loam; soil organic matter, 3-5%; soil pH, 6.7; water pH, 7.0; soil moisture was well below filled capacity. Granular formulations were combined with 6.7 oz Milorganite, which served as a carrier, and were applied with a hand-held shaker over plots. Liquid formulations were applied with a CO2 sprayer with a LF-4 nozzle at 28 psi and 3 gal/1000 ft2 spray rate. Milogranite (6.7 oz) also was applied to liquid-formulation-treated plots and untreated checks. The experiment was replicated 4 times using a randomized complete block design. Immediately after insecticide applications, plots were irrigated with 0. 0.5. or 1.0 inches water. An additional 1.1 inches of irrigated water was applied and 1.37 and 3.48 inches of rain fell during the 14-DAT and 40-DAT periods, respectively. Product efficacy was evaluated at 14 and 40 DAT (23 Aug and 19 Sep) by removing 2 1-ft2 sections of sod, 4 inches deep, from each plot and counting the number of surviving NMC. All treatments resulted in statistically significant reductions in NMC numbers at 14 and 40 DAT. The amount of irrigated water applied immediately after insecticide application had little effect on product efficacy. No phytotoxicity was observed." |
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| Language: | English |
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| References: | 0 |
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| Note: | 1 Table |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Baxendale, F. P., R. C. Shearman, and L. A. Wit. 1989. Influence of Varying Amounts of Postapplication Irrigation on Northern Masked Chafer Control, 1988.. Arthropod Manage. Tests. 14:p. 312. |
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MSU catalog number: SB 951 .A1 I48 |
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