Curative Black Cutworm Control With Merit and Fcr 4S4S, 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 327-327
Author(s):  
Stanley R. Swier ◽  
Alan Rollins
Keyword(s):  
Organic Matter ◽  
Soil Moisture ◽  
Soil Organic Matter ◽  
Air Temperature ◽  
Soil Ph ◽  
Soil Texture ◽  
Fourth Instar ◽  
Silt Loam ◽  
Black Cutworm ◽  
Country Club

Abstract Three treatments were applied to third and fourth instar BCW larvae at Amherst Country Club. Plots were 7 X 7 ft, replicated 4 times, in a RCB design. Treatments were applied 7 Sep and rated 14 Sep (7 DAT). Treatments were applied with a CO2 boom sprayer, 8004 nozzles, at 40 PSI, in 2 gal water per 10002. Plots were rated using a soap flush and counting the number of emerging larvae. Conditions at the time of treatment were: air temperature, 84.3°F; wind, calm; sky, cloudy; soil temperature, 77.3°F; thatch depth, 0.25 inch; soil pH, 5.7; slope, 0%; soil texture, silt loam: sand 40%, silt 59%, clay 1%; soil organic matter, 3.7%; soil moisture, 22.6%; post treatment precipitation, 0.1 inch daily; mowing height, 0.187 inch.

scholarly journals Full Season Control of Japanese Beetle Grub Control with Merit, NH, 1994

1996 ◽  
Vol 21 (1) ◽  
pp. 352-352
Author(s):  
Stanley R. Swier
Keyword(s):  
Organic Matter ◽  
Soil Moisture ◽  
Soil Organic Matter ◽  
Air Temperature ◽  
Soil Ph ◽  
Soil Texture ◽  
Clay Soil ◽  
Golf Course ◽  
Silt Loam ◽  
Japanese Beetle

Abstract The trial was conducted 10 May on a golf course rough, Amherst, NH. Plots were 10 X 10 ft, replicated 4 times, in a RCB design. Merit WP was applied in 4 gal water/1000 ft2 with a watering, can. Merit G granules were applied with a homemade salt shaker. Treatments were irrigated with 0.5 inch water after application. Plots were rated 30 Sep by counting the number of live grubs per 1 ft2. Conditions at the time of treatment were: air temperature 70°F; wind, 3 MPH; sky, clear; soil temperature, 1 inch, 60°F; thatch depth, 0.5 inch soil pH, 5.4; slope 0%; soil texture, silt loam, 47% sand, 50% silt, 3% clay; soil organic matter, 6.9%; soil moisture, 21.8%.

scholarly journals Control of Black Cutworm With Merit Used Preventatively and Pyrethroids Used Curatively, 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 326-326
Author(s):  
Stanley R. Swier ◽  
Alan Rollins
Keyword(s):  
Organic Matter ◽  
Soil Moisture ◽  
Soil Organic Matter ◽  
Experimental Design ◽  
Soil Temperature ◽  
Air Temperature ◽  
Soil Texture ◽  
Mixed Population ◽  
Black Cutworm ◽  
Plot Size

Abstract The experimental design was an RCB, replicated 4X, plot size was 7 X 7 ft. All treatments were applied with a CO2 boom sprayer, 8004 nozzles, at 40 PSI, in 2 gal water per 10002. All plots were lightly preirrigated. Merit was applied 3 Jul and irrigated (0.1 in). The remaining treatments were applied 31 Jul to a mixed population of 3-6 instar larvae and were not immediately watered. Plots were rated 7 Aug using a soap flush and counting live larvae. Conditions at the time of treatment on 3 Jul were: air temperature, 86.4°F; wind, calm; sky, clear; soil temperature, 90.6°F; thatch depth, 0.25 inch; slope, 0%; soil texture, loamy sand, sand 80%, silt 13%, clay 7%; soil organic matter, 1.7%; soil moisture 8%; post treatment precipitation, light irrigation daily; mowing height 0.125 inch.

scholarly journals Comparison of Three Rates of a Growth Regulator on Black Cutworm, 1996

1997 ◽  
Vol 22 (1) ◽  
pp. 353-353
Author(s):  
Stanley R. Swier ◽  
Alan Rollins ◽  
Bryan Carney
Keyword(s):  
Organic Matter ◽  
Soil Ph ◽  
Growth Regulator ◽  
Soil Texture ◽  
Dry Matter ◽  
Weather Conditions ◽  
Soil Conditions ◽  
Black Cutworm ◽  
Country Club

Abstract Two trials were conducted at Amherst Country Club, Amherst, NH. In the first trial treatments were applied on 6 Sep to a bentgrass nursery and rated 13 Sep. In the second, treatments were applied 12 Sep and rate 19 Sep. The treatments were applied in an RCB design, 4 replicates per treatment, with 1 -ft buffers between plots. All treatments were applied with a 2-wheel bicycle-type CO2 boom sprayer, using four 8004 nozzles with 50-mesh screens. The volume of water and insecticide mix per plot was 2 gal/1000ft2 delivered at 40 psi. BCW larvae were predominantly 3rd-4th instar in the 1st trial and 1 st-2nd instar in the 2nd trial. Weather conditions were as follows: on 6 Sep, air temp, 81°F; sky, clear; wind, calm. Soil conditions were as follows: surface temp, 83°F; temp at 1-inch depth, 74°F; soil pH, 5.7; dry matter, 80%; moisture, 20%; organic matter, 4%; soil texture, loam; sand, 60%; silt, 20%; clay, 20%. On 12 Sep, air temp was 74°F; soil temp at surface was 71°F; at 1-inch depth, 69°F. The trials were rated for live larvae by soaking each plot with Joy dish soap and water to force larvae to the surface.

scholarly journals Full Season Japanese Beetle Grub Control with Merit, 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 313-314
Author(s):  
Stanley R. Swier
Keyword(s):  
Organic Matter ◽  
Soil Moisture ◽  
Soil Organic Matter ◽  
Air Temperature ◽  
Soil Ph ◽  
Clay Soil ◽  
Sandy Loam ◽  
Golf Course ◽  
Japanese Beetle ◽  
Wettable Powder

Abstract Two formulations of Merit were compared for efficacy against Japanese beetle grubs on a golf course fairway in Amherst, NH. Plots were 10 × 10 ft, replicated 4 times in an RCB design. Treatments were applied 26 Apr and rated 24 Sep. The granular formulation was applied with a homemade salt shaker. The wettable powder was applied in a watering can at a volume of 5 gal water/1000 ft2. After application, plots were irrigated with 0.5 inches water. Plots were rated by counting the number of live grubs in a 3 ft2 sample. Conditions at the time of treatment were: air temperature, 53.3°F; soil temperature, 2 inches, 50.8°F; thatch depth, 0.5 inch; soil pH, 5.8; slope, 1%; soil texture, sandy loam, 53% sand, 43% silt, 4% clay; soil organic matter, 6.5% soil moisture, 19.4%.

scholarly journals Efficacy of Merit Against Annual Bluegrass Weevil, Nh, 1994

1996 ◽  
Vol 21 (1) ◽  
pp. 344-344
Author(s):  
Stanley R. Swier
Keyword(s):  
Organic Matter ◽  
Soil Moisture ◽  
Soil Organic Matter ◽  
Air Temperature ◽  
Adult Emergence ◽  
Putting Greens ◽  
Light Rain ◽  
Annual Bluegrass ◽  
Country Club ◽  
Loam Soil

Abstract The trial was conducted at Hanover Country Club, Hanover, NH. Treatments were applied 3 May, at the beginning of adult emergence. The plots were 6 X 6 ft, replicated 4 times and randomly arranged along the collar of putting greens. Each plot was separated by a 3 ft buffer. Merit was applied with a CO2 backpack sprayer in 1.8 gal water/1000 ft2. After application treatments were irrigated with 0.5 inch water. Plots were rated 27 Jun by removing three, 0.1 ft2 plugs and counting live larvae in the laboratory. Conditions at the time of treatment were: air temperature 55°F; wind, 3 MPH; sky, cloudy; soil temperature, 50°F; thatch depth, 0.5 inch soil pH, 5.9; soil texture, loam; soil organic matter, 4%; soil moisture, 20%; post treatment precipitation, light rain.

scholarly journals Control of Annual Bluegrass Weevil With Entomophagous Nematodes, 1994:

1996 ◽  
Vol 21 (1) ◽  
pp. 343-344
Author(s):  
Stanley R. Swier
Keyword(s):  
Organic Matter ◽  
Soil Moisture ◽  
Soil Organic Matter ◽  
Clay Soil ◽  
Golf Course ◽  
Efficacy Trial ◽  
Annual Bluegrass ◽  
Plot Size ◽  
Country Club ◽  
Large Plot

Abstract A large plot efficacy trial was conducted at Rutland Country Club, Rutland, VT on a golf course fairway. Plot size was 14 X 75 ft., arrayed in an RCB design, replicated 4 times. Treatments were applied 8 June at 0800 with an FMC hydraulic sprayer using 8004 nozzles delivering 3.6 gal. water/1000 ft2. Within 30 minutes of application, 0.2 inch irrigation water was applied to the plots. Plots were 60% annual bluegrass and 40% bentgrass. Larvae were predominantly third instar. Plots were rated at 7 and 14 DAT. Five cup cutter plugs were then taken per plot and analyzed in the lab. The number of live larvae were recorded. Conditions at the time of treatment were: air temperature 64.4°F; wind, 2 MPH; sky, clear; soil temperature, 1 inch –66°F; thatch depth, 0.25 inch soil pH, 5.2; slope, 3%; soil texture, loam: 48% sand, 42% silt, 10% clay; soil organic matter, 7.5%; soil moisture, 21.3%; post-treatment precipitation, 0.2 inch every other day.

scholarly journals Efficacy of Four B.T., Japonica BUI BUI, Formulations on Japanese Beetle Grubs, 1996

1997 ◽  
Vol 22 (1) ◽  
pp. 371-371
Author(s):  
Stanley R. Swier ◽  
Alan Rollins ◽  
Bryan Carney
Keyword(s):  
Organic Matter ◽  
Soil Ph ◽  
Dry Matter ◽  
Weather Conditions ◽  
Post Treatment ◽  
Soil Conditions ◽  
Silt Loam ◽  
Japanese Beetle ◽  
Time Of Application ◽  
Country Club

Abstract This trial was conducted at Amherst Country Club, Amherst, NH. The lawn was mowed at 1.5 inches and irrigated daily (0.1 inch). All treatments were applied on 19 Aug to 7 X 11 ft plots with 1-ft buffers, replicated 5 times in an RCB design. Liquid formulations were applied with a 2-wheel bicycle-type CO2 boom sprayer equipped with 4 spray heads fitted with a 50-mesh strainer and an 8004 fan-type nozzle. The volume of water and insecticide mix per plot was 2 gal/1000 ft2 delivered at 40 psi. Granular formulations were evenly dispersed using large plastic salt shakers. The surface of the turf was free of moisture (dew) at time of application. The plots were irrigated post-treatment with 0.4 in of water. Grubs were primarily 2nd instar. Weather conditions at time of application were as follows. Air, temp; 78°F; sky, clear; wind, moderate breeze. Soil conditions were as follows: surface temp, 80°F; at 1-inch depth, 76°F; at 2-inch depth, 75°F; soil pH, 5.6; texture, silt loam; sand, 50%; silt, 43%; clay, 7%; dry matter, 81%; moisture, 19%; organic matter, 5%. The trial was rated on 20 Sep using a Ryan 18-inch sod cutter to cut the plots to a depth of 3/4 inch. A 3 ft2 piece of sod was moved and live grubs counted.

Importance of mechanisms and processes of the stabilisation of soil organic matter for modelling carbon turnover

2003 ◽  
Vol 30 (2) ◽  
pp. 207 ◽  
Author(s):  
Evelyn S. Krull ◽  
Jeffrey A. Baldock ◽  
Jan O. Skjemstad
Keyword(s):  
Organic Matter ◽  
Soil Moisture ◽  
Soil Organic Matter ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Soil Texture ◽  
Soil Structure ◽  
Current Knowledge ◽  
Biologically Active ◽  
Physical Protection

This paper reviews current knowledge of soil organic carbon (SOC) dynamics with respect to physical protection, soil moisture and temperature, and recalcitrant carbon fractions (such as charcoal) in predominantly agricultural soils. These factors are discussed within the framework of current soil organic matter models. The importance of soil structure in the stabilisation of organic residues through physical protection has been documented previously in various studies. In addition, changes in soil structure associated with tillage can significantly affect soil organic matter decomposition rates. The concept of physical protection has been incorporated into several soil carbon models as a function of soil texture. While soil texture can affect the soil's capacity for aggregation and adsorption, factors such as soil moisture and temperature may further enhance or reduce the extent of physical protection. While adsorption and aggregation can slow decomposition processes, it is unlikely that these processes are solely responsible for the high mean residence times measured in biologically active surface soils. Accordingly, chemical recalcitrance appears to be the only mechanism by which soil organic carbon can be protected for long periods of time.

scholarly journals Control of Black Cutworm on a Bentgrass Nursery, 1996

1997 ◽  
Vol 22 (1) ◽  
pp. 354-354 ◽  
Author(s):  
Stanley R. Swier ◽  
Alan Rollins ◽  
Bryan Carney
Keyword(s):  
Organic Matter ◽  
Soil Ph ◽  
Dry Matter ◽  
Weather Conditions ◽  
Soil Conditions ◽  
Black Cutworm ◽  
Country Club

Abstract This trial was conducted at Amherst Country Club, Amherst, NH. All treatments were applied on 27 Sept to a bentgrass nursery. The treatments were laid out in an RCB design with 1 ft buffers between plots. All liquid formulations were applied with a 2-wheel bicycle-type CO2 boom sprayer equipped with 4 spray heads, fitted with a 50-mesh strainer and an 8004 fan-type nozzle. The volume of water and insecticide mix per plot was 2 gal/ 1000ft2 delivered at 40psi. Granular formulations were evenly dispersed using large plastic salt shakers. All granulars were irrigated with 1/2 inch of water. No liquid formulations were irrigated. BCW larvae were predominantly 4th instar. Weather conditions were as follows: air temp, 50°F; sky, cloudy; wind, calm. Soil conditions were as follows: surface temp, 55°F; at 1-inch depth, 53°F; at 2-inch depth, 53°F; texture, loam; sand, 60%; silt, 20%; clay, 20%; soil pH, 5.7; dry matter, 80%; moisture, 20%; organic matter, 4%. The trial was rated on 4 Oct by applying to each plot a mixture of Joy dish soap and water to force live larvae to the surface for counting.

scholarly journals Selected Rates of Conventional and Biorational Insecticides for Early Season Sod Webworm Control, 1997

1998 ◽  
Vol 23 (1) ◽  
pp. 340-341
Author(s):  
A. P. Weinhold ◽  
F. P. Baxendale ◽  
J. Schild ◽  
T. Merrigan
Keyword(s):  
Organic Matter ◽  
Soil Moisture ◽  
Soil Organic Matter ◽  
Tall Fescue ◽  
Weather Conditions ◽  
Kentucky Bluegrass ◽  
Silt Loam ◽  
Time Of Application ◽  
Plot Area ◽  
Loam Soil

Abstract Insecticides were evaluated for control of sod webworm larvae on a Kentucky bluegrass lawn at the Gering Cemetery, in Scotts Bluff County, Nebraska. The turf (80% Kentucky bluegrass, 20% perennial rye and tall fescue) was maintained at a mowing height of 2.5 inches. Thatch accumulation (finger compressed) in the plot area was 0.5 inches. Field conditions at the study site were: soil type, silt loam; soil organic matter, 2.3%; soil pH, 8.4. Weather conditions at the time of application were as follows: soil moisture 22% by wt; air temperature 71°F; soil temperature 70°F; relative humidity : 27%; wind direction and velocity 108° at 7 mph. Plots were 6 X 10 ft and the experimental design was a RCB with 4 replications. Treatments were applied on 5 May. Liquid insecticides were applied using a CO2 sprayer with a TeeJet® 8002 nozzle at 30 psi and delivering 87 gpa finished spray. Following applications, plots were irrigated with 0.25 inches of water. No rain fell during the post-treatment period. Treatments were evaluated 3, 7, and 14 DAT (8, 12, and 19 May) by mixing 0.5 oz Lemon Dawn® per gal of water and applying 2 gal of the dilution to each of two 6 ft sampling areas per plot (12.0 ft2 total area). Larvae that moved to the grass surface after 30 minutes were collected and counted.

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