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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Brandenburg, R. L.;
Hertl, P. T. |
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| Author Affiliation: | Department of Entomology, North Carolina State University |
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| Title: | Control of white grubs in bermudagrass sod, North Carolina |
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| Source: | Insecticide and Acaricide Tests. Vol. 16, 1991, p. 242-243. |
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| Publishing Information: | Lanham, MD: Entomological Society of America |
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| # of Pages: | 2 |
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| Keywords: | TIC Keywords: Cyclocephala lurida; Agrostis stolonifera; Insect control; Insecticides
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| Geographic Terms: | North Carolina |
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| Abstract/Contents: | "Plots were established on a golf course rough at the Oak Island Golf Course near Caswell Beach. The bermudagrass rough contained a variety of weed species and was maintained at a height of 8 cm with 1 cm of thatch. Soil was a sand with a pH of 5.8 and 1.2% humic matter. Treatments were applied 27 Mar to 3.0 X 3.0 m plots arranged in a randomized complete block with 4 replications. Air temperature was 75 F and soil temperature was 63 F. Soil was moist at time of insecticide application. Granular formulations were applied in a hand held glass jar shaker with a perforated top. Sprays were applied with a CO2-pressurized backpack sprayer delivering 135ml/plot (332 liters/ha) at 40 psi. After application all plots were irrigated with 0.7 cm of water. Pretreatment inspections revealed grubs to be Southern masked chafers. Plots were sampled on 10 Apr (14 DAT) using a 20 cm diam core sampler to a depth of 20 cm (most grubs were within 3 cm of the soil surface during both treatment and sampling). Five sample sites/plot were selected at random. All grubs were counted and removed from the soil core. Sampling on 24 Apr (28 DAT) found that a significant portion of the grubs had pupated due to an extremely mild winter and advanced development and thus was considered invalid. Counts from the 5 samples were summed for each plot and the data were transformed [:square root of] X + 0.5 prior to analysis. Sampling 14 DAT revealed some variation between replicates making mean separation among treatments difficult. All treatments did significantly reduce grub populations as compared to the untreated check plots. However, due to variability within plots, means of specific treatments could not be separated at the (P=0.05) level. Since the soil was moist at the time of treatment and all treatments were watered in, initial conditions appeared favorable for excellent insecticide activity. High variation in the plots is difficult to explain, but not unusual for soil arthropods." |
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| Language: | English |
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| References: | 0 |
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| See Also: | Other items relating to: GRUBS |
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| Note: | This item is an abstract, with table, only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Brandenburg, R. L., and P. T. Hertl. 1991. Control of white grubs in bermudagrass sod, North Carolina. Arthropod Manage. Tests. 16:p. 242-243. |
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