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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Baxendale, F. P.;
Ali, M. A. A.;
von Bargen, K.;
Grisso, R. D.. |
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| Author Affiliation: | Department of Entomology and Biological Systems Engineering, University of Nebraska-Lincoln, NE |
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| Title: | Subsurface applications of MYX-678 and Turcam for control of annual white grubs, 1992 |
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| Source: | Insecticide and Acaricide Tests. Vol. 18, 1993, p. 320. |
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| Publishing Information: | Lanham, MD: Entomological Society of America |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Poa pratensis; Cyclocephala lurida; Insecticide application; Bendiocarb; Ochrosidia dillosa
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| Geographic Terms: | Nebraska |
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| Abstract/Contents: | "This study was conducted in Lincoln, NE on a Kentucky bluegrass golf course fairway. The turf(95% Kentucky bluegrass) was maintained at a mowing height of 1.6 cm and thatch accumulation (finger compressed) in the plot area was 1.3 to 1.9 cm. Field conditions at the time of application were: air temperature, 27.2 degrees C; soil temperature (10-cm depth), 16.7 degrees C; soil type, silty clay laom; soil organic matter, 3-5%; soil pH, 6.0 to 7.0; water pH, 7.0; soil moisture, 15%. Plots were 1.05 X 4.5 m and the experimental design was a RCB with 3 replications. Insecticides were applied 18 Aug; subsurface treatments were applied using a Cushman prototype subsurface applicator designed to place liquid insecticide at the soil-thatch interface (average depth, 1.9 cm), and a Cushman prototype high pressure liquid injector. Conventional liquid treatments were applied with a CO2 sprayer. Immediately following applications, plots were irrigated with 1 cm of water. The test area received approximately 3.8 cm of irrigated water during the post-treatment period. Treatments were evaluated 21 DAT on 8 Sep by removing from each plot three, 20.3 cm diam turf-soil cores (.09 m2 total area) to a depth of 7.6 cm and counting the number of surviving grubs. Pretreatment estimates indicated 50-100 SMC/0.09 m2 (12% eggs, 68% first, 20% second instar grubs) in the test area. Both high and low rates of MYX-678 applied with the Cushman prototype high pressure liquid injector provided statistically significant white grub reduction (60.6% and 54.2%, respectively) when compared to the untreated check. However, the high pressure liquid applicator operated with water only resulted in a 39.0% reduction. Conventional application of MYX-678, and MYX-678 applied with the Cushman prototype subsurface placement applicatore provided white grub reductions of 36.0% or less. A high degree of variability among plots (CV=94.2) resulted in relatively poor separation of means. No phytotoxicity was observed." |
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| Language: | English |
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| References: | 0 |
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| Note: | Table
This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Baxendale, F. P., M. A. A. Ali, K. von Bargen, and R. D. Grisso. 1993. Subsurface applications of MYX-678 and Turcam for control of annual white grubs, 1992. Arthropod Manage. Tests. 18:p. 320. |
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