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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.;
Steinegger, D. H. |
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| Author Affiliation: | Department of Entomology and Department of Horticulture, University of Nebraska, NE |
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| Title: | Reduced rates of Dursban combined with sunspray ultrafine spray oil for control of chinch bugs on buffalograss |
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| Source: | Insecticide and Acaricide Tests. Vol. 18, 1993, p. 329. |
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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: Bouteloua dactyloides; Blissus; Chlorpyrifos; Insecticides; Insecticide application
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| Geographic Terms: | Nebraska |
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| Abstract/Contents: | "The experiment was conducted on a buffalograss lawn in Lincoln, NE. Insecticides were applied on 15 Aug to 1.2 X 1.2 m plots arranged in a RCB design with 4 replication. Buffalograss was maintained at a mowing height of 10.2 cm and mowed to 5.1 cm prior to insecticide applications. Thatch accumulation ranged from 0 to 0.64 cm. Conditions at the time of application were as follows: air temperature 33 degrees C; soil temperature (10.2 cm depth) 30 degrees C; soil type, silty clay loam; soil organic matter, 3-5% soil pH, 6.0-7.0; water pH, 7.0; soil moisture 11%; Insecticides were applied with a CO2 sprayer using a LF-4 nozzle at 165.5 KPa and delivereing 18.9 liter spray/93 m2. Immediately following application, plots were irrigated with 0.325 cm water. No rainfall occurred during the post-treatment period. Product efficacy was evaluated 5 DAT (20 Aug) by removing from each plot three turf-soil cores to a depth of 2.54 cm with a 10.8 cm diam cup cutter (0.03 m2 total area per plot). Cores were returned to the laboratory and placed in Berlese funnels. Extracted chinch bugs were counted after 48 h. Pretreatment counts indicated 30-40 chinch bugs/0.03 m2 (33% first, 51% second, 16% third instar) in the test area. All treatments resulted in statistically significant reductions in chinch bug numbers when compared to the untreated check. SunSpray + Dursban Turf at 0.563 kg/hectare and Dursban Turf at both 1.125 kg and 0.563 kg/hectare provided greater than 90% control. Minor phytotoxicity was observed in two plots when spray mixtures were insufficiently agitated and the oil came out of suspension." |
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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., and D. H. Steinegger. 1993. Reduced rates of Dursban combined with sunspray ultrafine spray oil for control of chinch bugs on buffalograss. Arthropod Manage. Tests. 18:p. 329. |
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