scholarly journals Influence of Hm-8902 Combined with Fn-5354 Or Naf-53 for Control of Annual White Grubs, 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 319-319
Author(s):  
F. P. Baxendale ◽  
A. P. Weinhold ◽  
R. E. Gaussoin
Keyword(s):  
Near Field ◽  
Field Capacity ◽  
Kentucky Bluegrass ◽  
Silty Clay ◽  
Clay Loam Soil ◽  
White Grubs ◽  
Time Of Application ◽  
Water Ph ◽  
Plot Area ◽  
Loam Soil

Abstract The study was conducted in Lincoln, NE on a Kentucky bluegrass and perennial rye golf course fairway. The turf (50% Kentucky bluegrass and 50% perennial rye) was maintained at a mowing height of % inches and thatch accumulation in the plot area was 0.75 inches (finger compressed, 0.5 inches). Field conditions at the time of application were: soil type, silty clay loam; soil organic matter, 3—5%; soil pH, 6—7; water pH, 7.0; soil moisture, near field capacity. Plots were 6 × 6 ft and the experimental design was a RCB with 4 replications. Insecticide treatments were applied 24 Aug using a CO2 sprayer with an LF-4 tip at 24 psi and delivering 5 gal finished spray/1000 ft2. Immediately following applications, the test area was irrigated with approximately 0.5 inches of water. A total of 4.61 inches of rain fell during the post-treatment period. Product efficacy was evaluated 14 Sep (21 DAT) by removing from each plot three 8-inch diam turf-soil cores (1.05 ft2 total area) to a depth of 3 inches and counting the number of surviving grubs.

scholarly journals Influence of Post-Application Irrigation on Control of Annual White Grubs on a Golf Course Fair-Way, 1996

1997 ◽  
Vol 22 (1) ◽  
pp. 355-355
Author(s):  
F.P. Baxendale ◽  
A.P. Weinhold ◽  
K.A. Weinhold
Keyword(s):  
Kentucky Bluegrass ◽  
Golf Course ◽  
Silty Clay ◽  
Clay Loam Soil ◽  
Silty Clay Loam ◽  
White Grubs ◽  
Time Of Application ◽  
Water Ph ◽  
Plot Area ◽  
Loam Soil

Abstract This study was conducted in Lincoln, NE on a golf course fairway. The turf (20% Kentucky bluegrass and 80% perennial rye) was maintained at a mowing height of 11/16 inch. Thatch accumulation (finger compressed) in the plot area was 0.375 to 0.50 inch. Field conditions at the study site were: soil type, silty clay loam; soil organic matter, 4%; soil pH, 6.2; water pH, 7.0. Environmental conditions at the time of application were as follows: soil moisture 12% by wt.; air temperature 72°F; soil temperature 72°F; relative humidity 43%; wind direction and velocity 6° at 7 mph. Plots were 6 X 10 ft and the experimental design was a RCB with 3 replications. Insecticides were applied once on 9 Jul and twice on 11 Jul. Liquids were applied using a CO2 sprayer with a TeeJet® 8002 nozzle at 30 psi and delivering 2 gal/1000 square feet. A pre-calibrated Gandy 24H12 drop spreader was used to apply granular insecticides. Post-application irrigations were applied as follows: 09 Jul application, none; 11 Jul, first application, 0.35 inch; 11 Jul, second application with syringe, approximately 0.125 inch. Normal irrigation was resumed after 48 h. Precipitation between application and evaluation totaled 11.3 inches. Treatments were evaluated 57 DAT on 4 SEP by removing from each plot three, 8-inch diam turf-soil cores (1.05 ft2 total area) to a depth of 3 inches and counting the number of surviving grubs. Insecticides were applied prior to the onset of masked chafer oviposition.

scholarly journals Preventive Control of Annual White Grubs on a Golf Course Fairway, 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 337-337
Author(s):  
F. P. Baxendale ◽  
J. A. Kalisch ◽  
R. E. Gaussoin
Keyword(s):  
Near Field ◽  
Field Capacity ◽  
Golf Course ◽  
Silty Clay ◽  
White Grubs ◽  
Preventive Control ◽  
Time Of Application ◽  
Water Ph ◽  
Plot Area ◽  
Loam Soil

Abstract The study was conducted in Lincoln, NE on a perennial rye golf course fairway. The turf (100% perennial rye) was maintained at a mowing height of 5/s inches and thatch accumulation in the plot area was 0.5 inches finger compressed, 0.25 inches). Field conditions at the time of application were: soil type, silty clay loam; soil organic matter, 3-5%; soil pH, 6-7; water pH, 7.0; soil moisture, near field capacity. Plots were 8 × 8 ft, and the experimental design was a RCB with 5 replications. Insecticide treatments were applied 19 Apr. Liquid insecticides were applied using a CO2 sprayer with an LF-4 tip at 24 psi and delivering 5 gal finished spray/1000 ft2. The granular formulation of Merit was applied with a pre-calibrated Gandy 24H12 spreader. Immediately following applications, the test area was irrigated with approximately 0.5 inches of water. A total of 20.68 inches of rain fell during the post-treatment period. Product efficacy was evaluated 3 Sep (137 days after treatment) by removing from each plot six, 8-inch diameter turf-soil cores (2.1 ft2 total area) to a depth of 3 inches and counting the number of surviving grubs.

scholarly journals Control of Buffalograss Chinch Bugs with Beauvarja Bassiana and Entomopathogenic Nematodes, 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 328-328
Author(s):  
F. P. Baxendale ◽  
A. P. Weinhold ◽  
T. P. Riordan
Keyword(s):  
Entomopathogenic Nematodes ◽  
Near Field ◽  
Field Capacity ◽  
Silty Clay ◽  
Clay Loam Soil ◽  
Silty Clay Loam ◽  
Time Of Application ◽  
Water Ph ◽  
Plot Area ◽  
Loam Soil

Abstract The study was conducted on a buffalograss lawn in Lincoln, NE. The turf was maintained at a mowing height of 3.5 inches and thatch accumulation in the plot area was 0.25 inches. Field conditions at the time of application were: soil type, silty clay loam; soil organic matter, 3-5%; soil pH, 6-7; water pH, 7.0; soil moisture, near field capacity. Plots were 4 × 4 ft and the experimental design was a RCB with 3 replications’. Insecticide treatments were applied 2 Sep. Prior to application, the plot area was mowed to 1.5 inches. Treatments were applied with a CO2 sprayer using a LF-4 tip at 24 psi and delivering 5 gal finished spray/1000 ft2. Immediately following application, plots were syringed with 0.25 inches water. A total of 0.29 and 0.68 inches of rain fell respectively, during the 7 and 14 day post-treatment periods. Product efficacy was evaluated 9 and 16 Sep (7 and 14 DAT) by removing from each plot three turf-soil cores to a depth of 1 inch with a 4.25-inch diam cup cutter (0.3 ft2 total area per plot). Cores were returned to the laboratory and placed in Berlese funnels. Extracted chinch bugs were counted after 48 hr.

scholarly journals Control of Buffalograss Chinch Bugs with Combinations of Insecticidal Soap and Reduced Rates of Conventional Insecticides, 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 328-328
Author(s):  
F. P. Baxendale ◽  
J. A. Kalisch ◽  
D. H. Steinegger
Keyword(s):  
Near Field ◽  
Field Capacity ◽  
Silty Clay ◽  
Soil Cores ◽  
Clay Loam Soil ◽  
Silty Clay Loam ◽  
Time Of Application ◽  
Water Ph ◽  
Plot Area ◽  
Loam Soil

Abstract The study was conducted on a buffalograss lawn in Lincoln, NE. The turf was maintained at a mowing height of 3.5 inches and thatch accumulation in the plot area was 0.25 inches. Field conditions at the time of application were: soil type, silty clay loam; soil organic matter, 3-5%; soil pH, 6-7; water pH, 7.0; soil moisture, near field capacity. Plots were 4 × 4 ft and the experimental design was a RCB with 4 replications. Insecticide treatments were applied 3 Sep. Prior to application, the plot area was mowed to 1.5 inches. Treatments were applied with a CO2 sprayer using a LF-4 tip at 24 psi and delivering 5 gal finished spray/1000 ft2. Immediately following application, plots were syringed with 0.25 inches water. Product efficacy was evaluated 8 Sep (5 DAT) by removing from each plot three turf-soil cores to a depth of 1 inch with a 4.25-inch diam cup cutter (0.3 ft2 total area per plot). Cores were returned to the laboratory and placed in Berlese funnels. After 48 hr extracted chinch bugs were counted.

scholarly journals Influence of Application Timing of Insecticides on Control of Southern Masked Chafer, 1997

1998 ◽  
Vol 23 (1) ◽  
pp. 333-334
Author(s):  
T. M. Heng-Moss ◽  
A. P. Weinhold ◽  
F. P. Baxendale
Keyword(s):  
Kentucky Bluegrass ◽  
Silty Clay ◽  
Soil Cores ◽  
Clay Loam Soil ◽  
Silty Clay Loam ◽  
Application Timing ◽  
Time Of Application ◽  
Water Ph ◽  
Plot Area ◽  
Loam Soil

Abstract This study was conducted in Lincoln, NE, on a golf course rough. The turf (50% Kentucky bluegrass and 50% perennial rye) was maintained at a mowing height of 2.0 inches. Thatch accumulation (finger compressed) in the plot area was 0.75 inch. Field conditions at the study site were; soil type, silty clay loam; soil organic matter, 3.5%; soil pH, 6.5; water pH, 7.0. Environmental conditions at the time of application, (17 Jun, and 12 Aug) were as follows: soil moisture 20%, and 22% by wt respectively; air temperature 84° F, and 64° F; soil temperature 65° F, and 66° F; relative humidity 32%, and 88%; wind direction and velocity 245° at 3 mph., and 345° at 7 mph. Plots were 6 X 10 ft and the experimental design was a RCB with 4 replications. Liquid insecticides were applied using a CO2 sprayer with a TeeJet® 8002 nozzle at 30 psi and delivering 87 gpa. Following applications, plots were irrigated with 0.25 inches of water. Post-treatment precipitation totaled 8.34 inches. Treatments were evaluated 80 days after the first application on 05 Sep by removing from each plot six, 8-inch diam turf-soil cores (2.10 ft2 total area) to a depth of 3 inches and counting the number of surviving grubs.

scholarly journals Control of Bluegrass Billbug Larvae on a Kentucky Bluegrass Lawn in Saunders Co., Nb, 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 318-318
Author(s):  
F. P. Baxendale ◽  
T. P. Riordan ◽  
J. M. Johnson-Cicalese ◽  
S. R. Westerholt
Keyword(s):  
Agricultural Research ◽  
Near Field ◽  
Field Capacity ◽  
Kentucky Bluegrass ◽  
Silty Clay ◽  
Time Of Application ◽  
Water Ph ◽  
Agricultural Research And Development ◽  
Loam Soil ◽  
The University

Abstract Conven tional insecticides and entomopathogenic nematodes were evaluated for control of bluegrass billbug larvae on a Kentucky bluegrass lawn at the University of Nebraska Agricultural Research and Development Center near Mead, NB. The turf (100% Kentucky bluegrass) was maintained at a mowing height of 1.5 inches and thatch accumulation in the plot area was 0.75 inches (finger compressed, 0.50 inches). Field conditions at the time of application were: soil type, silty clay loam; soil organic matter, 3-5%; soil pH, 6.2-6.6; water pH, 7.0; soil moisture, near field capacity. Plots were 8 × 8 ft and the experimental design was a RCB with three replications. Insecticide treatments were applied 7 Jul. Granular insecticide treatments were applied with a precalibrated Gandy 24H12 spreader. Liquid insecticides and nematodes were applied using a CO2 sprayer with a LF-4 tip at 24 psi and delivering 4 gal finished spray/1000 ft2. The test area was irrigated with approximately 0.5 inches of water immediately following applications. A total of 3.88 inches of rain fell during the post-treatment period. Product efficacy was evaluated 21 Jul (14 DAT) by removing six 8-inch diam turf-soil cores (2.1 ft2 total area) to a depth of 3 inches and counting the surviving larvae.

scholarly journals Annual White Grub Control on a Golf Course Fairway Using Subsurface and Conventional Application Methods, 1994

1995 ◽  
Vol 20 (1) ◽  
pp. 287-287
Author(s):  
F. P. Baxendale ◽  
A. P. Weinhold ◽  
K. Von Bargen ◽  
R. D. Grisso
Keyword(s):  
Kentucky Bluegrass ◽  
Golf Course ◽  
Silty Clay ◽  
Soil Cores ◽  
White Grub ◽  
Clay Loam Soil ◽  
Silty Clay Loam ◽  
Water Ph ◽  
Plot Area ◽  
Loam Soil

Abstract This study was conducted in Lincoln, NE on a golf course fairway. The turf (100% Kentucky bluegrass) was maintained at a mowing height of 5/s inches. Thatch accumulation (finger compressed) in the plot area was 0.5 to 0.75 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. Soil moisture was maintained at approximately 17% by weight, throughout the study. Plots were 40 inches × 15 ft and the experimental design was a RCB with 3 replications. Insecticide treatments were applied on 23 Aug 1994 using either a Cushman prototype subsurface applicator designed to place insecticide granular treatments at the soil-thatch interface (avg depth 0.75 inches), or a Gandy 24H12 drop spreader. Following applications, plots were irrigated with 0.5 inches of water. Posttreatment precipitation totaled 0.42 inches. Treatments were evaluated 21 DAT on 13 Sep by removing from each plot three, 8-inch diam turf-soil cores (1.05 ft2 total area) to a depth of 3 inches and counting the number of surviving grubs. Pretreatment counts indicated 10-40 SMC/ft2 with 80-90% in the third instar stage in the test area.

scholarly journals Application Timing of Insecticides for Control of Annual White Grubs on a Golf Course Rough, 1996

1997 ◽  
Vol 22 (1) ◽  
pp. 372-372
Author(s):  
A.P. Weinhold ◽  
F.P. Baxendale ◽  
K.A. Weinhold
Keyword(s):  
Organic Matter ◽  
Kentucky Bluegrass ◽  
Golf Course ◽  
Soil Cores ◽  
White Grubs ◽  
Application Timing ◽  
Time Of Application ◽  
Water Ph ◽  
Plot Area ◽  
Loam Soil

Abstract This study was conducted in Lincoln, NE on a golf course rough. The turf (50% Kentucky bluegrass and 50% perennial rye) was maintained at a mowing height of 2.0 inches. Thatch accumulation (finger compressed) in the plot area was 0.75 inches. Field conditions at the study site were: soil type, silty cla> loam; soil organic matter, 3.5%; soil pH, 6.5; water pH, 7.0. Environmental conditions at the time of application on 18 Jun, 09 Jul, and 06 Aug were, respectively, as follows: soil moisture 20%, 19%, and 20% by wt; air temperature 81°F, 74°F, and 87°F; soil temperature 72°F, 74°F, and 77°F; relative humidity 63%, 39%, and 66%; wind direction and velocity 155° at 3 mph., 22° at 6 mph, 204° at 12 mph. Plots were 6 X 10 ft and the experimental design was a RCB with 3 replications. Liquid insecticides were applied using a CO2 sprayer with a TeeJet® 8002 nozzle at 30 psi and delivering 2 gal/1000 ft2 Following applications, plots were irrigated with 0.35 inch water. Post-treatment precipitation totaled 13.71 inches. Treatments were evaluated 77 days after the first application on 3 Sep by removing from each plot three, 8-inch diam turf-soil cores (1.05 ft2 total area) to a depth of 3 inches and counting the number of surviving grubs

scholarly journals Spring Management of Bluegrass Billbug with Merit 75Wsp and Vector Tl at the Valentine Turfgrass Research Center, University Park, Pa, 1994

1995 ◽  
Vol 20 (1) ◽  
pp. 291-292
Author(s):  
P. R. Heller ◽  
R. Walker ◽  
C. Silcox
Keyword(s):  
Soil Temperature ◽  
Treatment Time ◽  
Kentucky Bluegrass ◽  
Particle Size Analysis ◽  
Size Analysis ◽  
Larval Feeding ◽  
Feeding Damage ◽  
Clay Loam Soil ◽  
Water Ph ◽  
Loam Soil

Abstract The field plot consisted primarily of Kentucky bluegrass. Treatment plots were 6 × 9 ft, arranged in a RCB design, replicated 4 times. Two ft untreated barriers were placed between each treatment replicate. Liquid formulations were applied by using a CO2 compressed air sprayer with 4 8004VS TeeJet nozzles mounted on a 6 ft boom, operating at 28 psi, and delivering 5 gal/1000 ft2. At treatment time (31 May), the following soil and environmental conditions existed: air temperature, 78°F; soil temperature at 1 inch depth, 76°F; soil temperature at 2 inch depth, 66°F; RH, 80%; amount of thatch, 0.25-0.5 inches; soil type, silt-clay-loam; soil particle size analysis: 16.0% sand, 54.2% silt, 29.8% clay; organic matter, 5.0%; soil moisture (oven baked), 14.7%; water pH, 6-7; soil pH, 6.9; and skies were clear. Immediately after treatment the experimental area was irrigated with 0.25 inches of water. Posttreatment counts were made 30 DAT (30 Jun). Bluegrass billbug control was evaluated by removing four 0.087 ft2 sod samples from each replicate, and the total number of bluegrass billbug life stages (larva, pupa, adult) were recorded from each sample and converted to a ft2 count. Sod samples were removed with a 4-inch cup cutter. Billbug feeding damage rating was recorded on 12 Jul. Each 54 ft2 replicate was rated by determining larval feeding damage based on color ratings.\

scholarly journals Preventive Management of White Grubs with 1.5-G Formulations of Halofenozide and Mach-2 Liquid Insecticide, 1997

1998 ◽  
Vol 23 (1) ◽  
pp. 332-332
Author(s):  
P. R. Heller ◽  
R. Walker
Keyword(s):  
Soil Temperature ◽  
Treatment Time ◽  
Kentucky Bluegrass ◽  
Product Distribution ◽  
Particle Size Analysis ◽  
Size Analysis ◽  
Japanese Beetle ◽  
White Grubs ◽  
Water Ph ◽  
Loam Soil

Abstract The turfgrass area, located in Carbon County, PA, consisted primarily of Kentucky bluegrass (40%), annual bluegrass (40%), and perennial ryegrass (20%). Treatment plots were 8 X 6 ft, arranged in a RCB design and replicated 3 times. Liquid formulations were applied by using z CO2 sprayer with 4 8002VS TeeJet nozzles mounted on a 6-ft boom, operating at 28 psi, and applied in 500 ml of water/48 ft2 or delivering 2.7 gal/lOOC ft2. Granular formulations were applied with a hand-held shaker and mixed with fine top-dressing sand to facilitate product distribution. At treatment time (19 Aug), the following soil and environmental conditions existed: air temperature, 70° F; soil temperature at 1-inch depth, 69° F; soil temperature at 2 inch, 69° F; RH, 68%; amount of thatch, 0.5-0.625 inch; soil textural class, silt loam to loam; soil particle size analysis; sand, 39.4%; silt, 50.5%; clay 10.1%; organic matter, 20.9%; soil percent water content (percent by weight), 36.3; water pH, 7.0; soil pH, 6.8; application time, mid-morning; and skies cloudy. Immediately after treatment select treatments were irrigated in with 0.2 inch of water. Post-treatment counts were made on 7 Oct. Three ft2 soc samples were randomly taken from each replicate, and the total number of Japanese beetle grubs/ft2 was recorded.

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