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 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 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 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 Efficacy of Talstar Flow Able and Granular as a Preventative Against Black Turfgrass Ataenius Adults, 1997

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

Abstract This trial was conducted at Campbell’s Scottish Highlands Golf Course, Salem, NH. Four replications of six treatments were applied to a bluegrass fairway on 15 May at peak adult emergence. Each plot was 147 ft2, arranged in an RCB form. The liquid formulations were applied with a 2-wheel bicycle-type boom sprayer equipped with 4 spray heads; each head was fitted with an 8004 flattened fan-type nozzle and a 50-mesh strainer. CO2 was the source of pressure applied at 40 psi. The volume of water and insecticide mix per plot was 1 gal/1000 ft2. All granulars were evenly applied with a large-holed, commercial salt shaker. The liquid formulations were allowed to dry; the granulars were watered in up to M". Weather conditions were as follows: air temp, 65°F; sky, overcast; wind, 10-15 mph. Soil conditions were as follows: temp (1-inch), 57°F; temp (2-inch), 55°F; texture, sandy loam; sand, 68%; silt, 24%; clay, 8%; moisture, 21.2%; organic matter, 5.2%; pH, 7. On 23 Jul, 2-ft2 sections of each plot were rated for live larvae; a Ryan sod cutter was used to cut into the turf.

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).

scholarly journals Control of Japanese Beetle Larvae with Insecticide Mixtures, 1997

1998 ◽  
Vol 23 (1) ◽  
pp. 334-334
Author(s):  
Philip L. Nixon ◽  
W. Dorner ◽  
Susan T. Ratcliffe ◽  
S. Goodwin
Keyword(s):  
Relative Humidity ◽  
Soil Ph ◽  
Irrigation System ◽  
Kentucky Bluegrass ◽  
Golf Course ◽  
Japanese Beetle ◽  
Single Row ◽  
Time Of Application ◽  
Country Club ◽  
Insecticide Mixtures

Abstract The study was conducted in the short rough alongside a golf course fairway at Urbana Country Club, Urbana, IL. The fairway, short, and long rough consisted of Kentucky bluegrass. A RCB design was used because an outlet for the fairway’s irrigation system was directly opposite block 1, resulting in successively lower levels of irrigation and JB infestation from block 1 through 3. Plots were 5 X 10 ft and were arranged in a single row. Insecticide applications were applied in 3 replications on 16 Sep. Liquid applications were applied with a watering can, and the granular application (Dylox) was shaken from a measuring spoon. Insecticides were watered into the soil within 30 min after all applications were completed with approximately H inch irrigation. At the time of application, it was partly cloudy, 80°F, 50% relative humidity, and with winds < 10 mph. Soil pH was 6.1 with no thatch and was moist at application and 21 DAT. Grub sampling was conducted with a 6-inch diam sod sampler taking five scattered samples in each plot. All the JB grubs were counted in each ⅕ ft2 sample and the numbers were added together in each plot to obtain a ft2 measure. An ANOVA was conducted on the data and means separated by LSD test at P = 0.05.

EFFECTS OF SEED INOCULATION METHODS WITH PEAT-BASED RHIZOBIUM MELILOTI ON ALFALFA

1975 ◽  
Vol 55 (2) ◽  
pp. 555-563 ◽  
Author(s):  
H. T. KUNELIUS ◽  
UMESH C. GUPTA
Keyword(s):  
Soil Ph ◽  
Dry Matter ◽  
Rhizobium Meliloti ◽  
Sandy Loam ◽  
Good Growth ◽  
Seed Treatments ◽  
Fine Sandy Loam ◽  
Seed Inoculation ◽  
Medicago Sativa L ◽  
Uniform Manner

Saranac alfalfa (Medicago sativa L.) was grown on Charlottetown fine sandy loam (CHFSL) and Culloden sandy loam (CSL) in the greenhouse and field. Uninoculated, inoculated with peat-based rhizobia (I), inoculated and molybdenum-treated (IMo), inoculated and lime-coated (ILC), and inoculated, lime-coated and Mo-treated (ILCMo) seeds were included. At soil pH 5.0 and 5.3 in the greenhouse, the dry weights of alfalfa ranged from 214 to 727 mg/plant in the four cuttings from the ILC and ILCMo seed. The dry weights of alfalfa from the I and IMo seed were 1.3 to 99.7% of those from the ILCMo seed. Alfalfa from the ILC and ILCMo seed was well nodulated, whereas I and IMo seed resulted in poor nodulation. The 1973 field experiment showed that ILC and ILCMo seed at soil pH 5.5 and 5.6 resulted in alfalfa dry matter (DM) yields of 4,050 and 4,830 kg/ha which were equal to DM yields from plots with a pH of 6.0 and 6.1 seeded with inoculated seed. In plots with pH 5.5 and 5.6, total DM yields from I and IMo seed were 26.0–49.7% lower than those from ILCMo seed. In 1972, seed treatments on CHFSL at pH 5.6 did not influence the DM yields of alfalfa, whereas on CSL at pH 5.2 the crop failed to establish except from ILC and ILCMo seed and in limed plots at pH 5.9. In the first cutting, high N concentrations of alfalfa tissue coincided with good growth and good nodulation. The Mo concentrations of alfalfa tissue were not influenced in a uniform manner by seed treatments and varied from 0.11 to 0.49 ppm in the first cut tissue.

scholarly journals Efficacy of Four Formulations of Halofenozide (A Growth Regulator) Against European Chafer Larvae on a Home Lawn, 1996

1998 ◽  
Vol 23 (1) ◽  
pp. 355-356
Author(s):  
P. J. Vittum ◽  
M. Tiskus
Keyword(s):  
Soil Ph ◽  
Growth Regulator ◽  
Kentucky Bluegrass ◽  
Taraxacum Officinale ◽  
Soil Conditions ◽  
Digitaria Sanguinalis ◽  
Time Of Application ◽  
Overhead Irrigation ◽  
Silty Loam ◽  
Loam Soil

Abstract Four formulations of halofenozide (RH-0345) were tested for efficacy against European chafer larvae on a home iawn at the Suburban Experiment Station, Waltham, MA. The lawn consisted of 30% crabgrass (Digitaria sanguinalis), 30% perennial ryegrass, 20% Kentucky bluegrass, 20% dandelion (Taraxacum officinale L.), and was mowed at ca. 1.5 inches. Treatment plots were 8 ft by 8 ft, replicated 5 times, arranged in a CRB. All applications were made on 24 Jul. Granular products were applied using glass jars with perforated lids. Liquid formulations were applied ay hand with a watering can using 3 liters of water per plot. Soil conditions at the study site at time of application were as follows: soil type, silty loam; soil pH 6.2. All plots were watered in with 0.25 inch of irrigation through overhead irrigation within 15 minutes of application. Product efficacy was evaluated on 19 Sept (57 DAT) by removing 5 cup-cutter plugs (4.25-inch diam) from near the center of each plot, dislodging soil and counting all grubs to a Jepth of 3 inches.

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.

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