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 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.

Comparison of Two Nematode Formulations for Black Turfgrass Ataenius Control, 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 ◽  
Sandy Loam ◽  
Weather Conditions ◽  
Soil Conditions ◽  
Time Of Application ◽  
Country Club

Abstract This trial was conducted at Wentworth-By-The-Sea Country Club, New Castle, NH. All treatments were applied to a fairway on 15 Jul on 7 X 7 ft plots, 5 replicates per treatment, using an RCB design with 1 -ft buffers between plots. Treatments 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. The entire trial was irrigated with 1/2 inch of water immediately after application. Weather conditions at time of application were as follows: air temp, 72°F; sky, cloudy; wind, strong breeze. Soil conditions were as follows: surface temp, 70°F; at 1-inch depth, 71°F; at 2-inch depth, 71°F; texture, sandy loam; sand, 67%; silt, 27%; clay, 6%, soil pH, 6.0; dry matter, 74%; moisture, 26%; organic matter, 12%; thatch depth, 1/4 inch. The trial was rated on 5 Aug. A Ryan 12” sod cutter was used to cut a strip to a depth of 3/4 inch. A 1 ft2 piece of sod was pealed back, and live grubs were counted.

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.

scholarly journals Efficacy of Five Spinosad Formulations on Early Stages of Black Cutworm, 1997

1998 ◽  
Vol 23 (1) ◽  
pp. 318-318
Author(s):  
Stanley R. Swier ◽  
Alan Rollins ◽  
Rachel Lamarche ◽  
Meggan Hodgson
Keyword(s):  
Organic Matter ◽  
Treatment Period ◽  
Weather Conditions ◽  
Soil Conditions ◽  
Black Cutworm ◽  
Early Stages ◽  
Surface Temperatures ◽  
Country Club ◽  
Third Instar Larvae

Abstract This trial was conducted at Amherst Country Club, Amherst, NH on a bentgrass nursery. The trial consisted of 7 treatments, replicated 4 times, with 3 sampling dates, in a RCB design. For each replicate, 20 third-instar larvae were placed in PVC cylinder on 19 Aug and treated on 20 Aug. The insecticides were applied using 32-oz, hand-held pump sprayers. Peak daytime surface temperatures were relatively cool during the treatment period 70-80°F). The volume of water and insecticide mixture per cylinder was 2 gal/1000ft2. Weather conditions were as follows: air temp, 68°F; sky, mostly sunny; wind, 5 mph. Soil conditions were as follows: surface temp, 86°F; at 1-inch depth, 75°F; at 2-inch depth, 70°F; texture, loam; sand, 44%; silt, 38%; clay, 18%; moisture, 21%; organic matter, 4%. The trial was rated 1,3, and 7 DAT by applying a solution of Joy dish soap and water to each cylinder to force live larvae to the surface for counting.

scholarly journals Control of Early Instar Black Cutworm Larvae with Spinosad Formulations and Dursban, 1997

1998 ◽  
Vol 23 (1) ◽  
pp. 317-318 ◽  
Author(s):  
Stanley R. Swier ◽  
Alan Rollins ◽  
Rachel Lamarche ◽  
Meggan Hodgson
Keyword(s):  
Organic Matter ◽  
Soil Conditions ◽  
Black Cutworm ◽  
Light Soil ◽  
Surface Temperatures ◽  
Country Club ◽  
Early Instar

Abstract The rial was conducted at Hanover Country Club, Hanover, NH on a bentgrass nursery. One hundred 3rd-instar larvae per treatment were placed in a PVC cylinder on 9 Jul. Treatments in all cylinders were applied on 10 Jul. There were a total of 12 treatments, replicated 4 times, with 3 rating dates, in a RCB design. The insecticides were applied using 32-oz, hand-held pump sprayers. The volume of water and insecticide mixture per cylinder was 2 gal/1000 ft2. vVeather conditions were as follows: air temp, 68°F; sky, mostly sunny; wind, light. Soil conditions were as follows: surface temp, 78°F; at 1-inch depth, 74°F; at 2-inch depth, 70°F; texture, loam; sand, 64%; silt, 28%; clay, 8%; moisture, 21%; organic matter, 4.8%; pH, 7.3. The trial was rated on 11 Jul, 13 lul, and 17 Jul by applying to each cylinder a dilution of Joy dish soap and water to each cylinder to force live larvae to the surface for counting. During : he rating period, peak daytime surface temperatures were hot (90°F).

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.

Effect of Soil pH on Adsorption and Persistence of Imazaquin

Weed Science ◽  
1992 ◽  
Vol 40 (3) ◽  
pp. 490-496 ◽  
Author(s):  
Mark M. Loux ◽  
Kirk D. Reese
Keyword(s):  
Organic Matter ◽  
Soil Ph ◽  
Microbial Degradation ◽  
Field Studies ◽  
Soil Conditions ◽  
Silt Loam ◽  
Herbicide Application ◽  
Dry Soil ◽  
Decreasing Ph ◽  
Ph Range

Laboratory and field studies were conducted in 1988 through 1990 to determine the effect of soil pH on imazaquin adsorption and persistence in a Crosby silt loam (1.6% organic matter) and a Hoytville clay (3.3% organic matter). Above a pH of 6, 6 to 7% of the total imazaquin present was adsorbed to both soils. Adsorption increased as pH decreased from about 7 to 4.5, with a maximum of 16.5 and 31% adsorbed on Crosby and Hoytville soils, respectively. Imazaquin was more persistent in the Hoytville clay than in the Crosby silt loam. Herbicide dissipated more slowly in both soils in 1988 than in 1989 due to dry soil conditions immediately prior to and following herbicide application in 1988. In both soils, imazaquin persistence increased as soil pH decreased, over a pH range from 6.5 to 4.5. Increased persistence with decreasing pH was attributed in part to increased adsorption and decreased availability for microbial degradation.

scholarly journals Efficacy of Advance Ant Bait in Turf; 1997

1998 ◽  
Vol 23 (1) ◽  
pp. 339-339
Author(s):  
Stanley R. Swier ◽  
Alan Rollins ◽  
Rachel Lamarche ◽  
Meggan Hodgson
Keyword(s):  
Organic Matter ◽  
Weather Conditions ◽  
Pressure Source ◽  
Country Club ◽  
Mountain Country

Abstract This trial was conducted at White Mountain Country Club, Ashland, NH. Five replications of 3 treatments were applied on 24 Jul on a bluegrass fairway. Each plot was 140 ft2, separated by 5-ft buffers on all sides; the plots were arranged in a RCB design. The ant bait was distributed evenly onto each plot using a commercial salt shaker. Dursban was applied using a 2-wheel bicycle-type boom sprayer equipped with 4 spray heads; each head was fitted with an 8005 flat fan-type nozzle and a 50-mesh strainer. The volume of water and Dursban mix per plot was 2 gal/1000 ft2, using CO2 as a pressure source at 40 psi. Weather conditions were as follows: air temp, 70°F; sky, cloudy; wind, 5-10 mph. Soils conditions were as follows: surface temp, 76°F; at 1-inch, 78°F; at 2-inches, 78°F; texture, loam; sand, 44%; silt, 42%; clay, 14%; moisture, 20%; organic matter, 6.3%; pH, 5.2. All active anthills per plot were counted prior to spraying and then every 7 days for 4 weeks after treatment.

scholarly journals Evaluation of Mach 2 and Merit Against First Generation Black Turfgrass Ataenius Larvae, 1997

1998 ◽  
Vol 23 (1) ◽  
pp. 337-337
Author(s):  
Stanley R. Swier ◽  
Alan Rollins ◽  
Rachel Lamarche ◽  
Meggan Hodgson
Keyword(s):  
Organic Matter ◽  
First Generation ◽  
Adult Emergence ◽  
Weather Conditions ◽  
Soil Conditions ◽  
Golf Club ◽  
Scottish Highlands ◽  
Natural Rainfall

Abstract This trial was conducted at Campbell’s Scottish Highlands Golf Club, Salem, NH. Five replications of 8 treatments were applied to a bluegrass fairway on 21 May one week past peak adult emergence. Each plot was 49 ft2; the plots were arranged in an RCB form. The liquid formulations were applied with a 2-wheel bicycle-type sprayer equipped with 4 spray heads; each head was fitted with an 8004 flattened fan-type nozzle with a 50-mesh strainer. All granulars were evenly applied with a large-holed commercial salt shaker. The volume of water and insecticide mix per plot was 2 gal/1000 ft2, applied by CO2 pressure at 40 psi. Natural rainfall irrigated the plots (0.1 inch). Weather conditions were as follows: air temp, 55°F; sky, partly cloudy; wind, 10 mph. Soil conditions were as follows: temp (1-inch), 55CF; texture, loam; sand, 66%; silt, 26%; clay, 8%; moisture, 20.95%; organic matter, 5.3%; pH, 7.2. On 22 Jul, a 2-ft2 section of each plot was rated for live larvae.

Availability and uptake of boron in a group of pedogenetically related Canterbury, New Zealand soils

Soil Research ◽  
1991 ◽  
Vol 29 (3) ◽  
pp. 415 ◽  
Author(s):  
JA Adams ◽  
Z Hamzah ◽  
RS Swift
Keyword(s):  
Organic Matter ◽  
New Zealand ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Soil Ph ◽  
Dry Matter ◽  
Hot Water ◽  
Dry Matter Yield ◽  
Boron Uptake ◽  
Extractable Soil

Amounts of soil boron extracted from six Canterbury, New Zealand soils by hot water (HWS), hot 0.02 M CaCl2, 0.01 M CaCl2 + 0.05 M mannitol, and a boron specific resin were significantly (P < 0.01) correlated with each other. The soils are all formed from greywacke alluvium and/or loess but cover a range of organic matter and clay contents. Hot water and hot 0.02 M CaCl2 yielded higher levels of extractable boron than did 0.01 M CaCl2 + 0.05 M mannitol and the resin. Amounts of boron extracted by all four reagents were significantly correlated with soil organic carbon contents (and to a lesser extent clay contents), but not with soil pH. Dry matter yield and boron uptake by radishes (Raphanussativus L.) over two harvests increased with increasing extractable soil boron for all four extractants showing that all were suitable for assessing the boron available to radishes. Decreased yields occurred in soils with HWS or hot 0.02 M CaCl2 extractable boron levels less than 1.1 �g g-1 and were associated with a progressively lower allocation of dry matter to roots. For analytical purposes, the hot 0.02 M CaCl2 reagent provided the most convenient measure of available soil boron.

Sign in / Sign up

Export Citation Format

Share Document