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| Publication Type:
| Report |
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| Author(s): | Heng-Moss, T. M.;
Baxendale, F. P.;
Weinhold, A. P. |
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| Author Affiliation: | Department of Entomology, University of Nebraska-Lincoln, Lincoln, NE |
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| Title: | Effect of post-treatment irrigation on deltamethrin for buffalograss chinch bug control, 1997 |
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| Section: | Ornamentals
Other records with the "Ornamentals" Section
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| Source: | Arthropod Management Tests. Vol. 23, 1998, p. 341-342. |
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| Publishing Information: | Annapolis, MD: Entomological Society of America |
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| # of Pages: | 2 |
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| Keywords: | TIC Keywords: Bouteloua dactyloides; Blissus; Irrigation; Application timing; Pest control; Insect control; Insecticides; Insecticide evaluation; Pest density; Application rates; Deltamethrin; Irrigation rates; Watering-in; Chlorpyrifos
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| Abstract/Contents: | "Insecticides were evaluated for control of chinch bugs on a buffalograss seed production field near Murdock, NE. The turf (100% buffalograss) was maintained unmowed but was cut to a height of 2 inches prior to insecticide applications. Thatch accumulation (finger compressed) in the plot area was less than 0.125 inches. Field conditions at the study site were: soil type, silty clay loam; soil organic matter, 3-5%; soil pH, 6-7; water pH, 7.0. Environmental conditions at the time of treatment were as follows: soil moisture 11%; air temperature 80°F; soil temperature 79°F; relative humidity 73%; wind direction and velocity 126° at 6 mph. Plots were 6 x 10 ft and the experimental design was a RCB with 4 replications. Insecticide treatments were applied on 27 Aug 1997. Granular treatments were applied by using a pre-calibrated 24H12 Gandy spreader. Liquid insecticides were applied using a CO₂ sprayer with a TeeJet® 8002 nozzle at 30 psi and delivering 87 gpa finished spray. Post-treatment irrigation involved application of 0.5 or 0.125 inches water to designated plots using a sprinkling can. A total of 1.53 inches of rain fell during the post-treatment period. Treatments were evaluated 3, 7 and 21 DAT (30 Aug, 3 and 18 Sep) by removing from each plot three, 4.25-inch-diam turf-soil cores (0.3 ft² total area) to a depth of 1 inch. Cores were placed in Berlese funnels and extracted chinch bugs were counted after 48 hr. Pre-treatment estimate of insect activity was 30+ chinch bugs/ft². Dursban Pro 2 EC provided statistically signficant reductionsin chinch bug numbers, when compared to the untreated control, at all evaluation dates except the non-irrigated treatment at 3 DAT. At 7 DAT, all Deltamethrin treatments, except the 50 SC formulation with no irrigation, provided statistically significant chinch bug control. Deltamethrin 50 SC consistently showed a reduction in control related to reduced irrigation. No phytotoxicity was observed." |
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| Language: | English |
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| References: | 0 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Heng-Moss, T. M., F. P. Baxendale, and A. P. Weinhold. 1998. Effect of post-treatment irrigation on deltamethrin for buffalograss chinch bug control, 1997. Arthropod Manage. Tests. 23:p. 341-342. |
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