scholarly journals Control of Black Cutworm on Greens 1992

1994 ◽  
Vol 19 (1) ◽  
pp. 304-304
Author(s):  
Stanley R. Swier ◽  
John S. Weaver
Keyword(s):  
Experimental Design ◽  
Soil Temperature ◽  
Air Temperature ◽  
Soil Texture ◽  
Soap Solution ◽  
Sandy Loam ◽  
Golf Course ◽  
Feeding Damage ◽  
Black Cutworm ◽  
Time Of Application

Abstract The experiment was conducted on a golf course nursery. The experimental design was an RCB, replicated 4 times, with 6 ft × 6 ft plots. Treatments were applied 13 Aug and rated 20 Aug. Liquid treatments were applied with a watering can and granular treatments with a salt shaker applicator. Dylox was watered in with 2 gal/plot. Neem was not watered in. The BCW were predominantly 5th instar. Although neem dried on the foliage, the weather was cool and damp for 3 DAT. Conditions at the time of application were: air temperature, 68.2°F; soil temperature, 65.5°F; thatch depth, 0.75 inch; soil texture, sandy loam. Plots were rated by flushing the plot with a soap solution and counting the emerging BCW. Plots could not be rated for feeding damage due to excessive disease.

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.

Suppression of Black Cutworm Larvae with Spinosad, Bifenthrin, Chlorpyrifos, and Experimental Formulations on Creeping Bentgrass, 1997

1998 ◽  
Vol 23 (1) ◽  
pp. 312-313 ◽  
Author(s):  
P. R. Heller ◽  
R. Walker
Keyword(s):  
Soil Temperature ◽  
Treatment Time ◽  
Sandy Loam ◽  
Creeping Bentgrass ◽  
Weight Percent ◽  
Early Morning ◽  
Particle Size Analysis ◽  
Size Analysis ◽  
Black Cutworm ◽  
Time Of Application

Abstract Treatment plots were 6 x 8 ft, arranged in a RCB design and replicated 4 times. White PVC cylinders (8-inch diam x 6 inch length) were placed in each replicate and secured in place. One cylinder was placed in each replicate per evaluation period (28 Jul and 30 Jul). Fifteen 0.125-inch black cutworm larvae were placed in each cylinder on 22 Jul. Bird netting was placed over the experimental area from 22 Jul through 28 Jul to prevent bird predation. Liquid formulations were applied by using a CO2 compressed-air sprayer with 4 8002VS Tee-Jet nozzles mounted on a 6-ft boom, operating at 28 psi, and applied in 363 ml of water/48 ft2 or delivering 2.0 gal/1,000 ft2. At treatment time (25 Jul), the following soil and environmental conditions existed: air temperature, 63° F; soil temperature at 1 inch depth, 62° F; soil temperature at 2-inch depth, 60° F; RH, 96%; amount of thatch, 0.125 inch; soil textural class, sandy loam; soil particle size analysis: 61.3% sand, 27.7% silt, 11.0% clay; soil percent water weight (percent by weight), 24.2%; organic matter, 5.2%; water pH, 7.0; soil pH, 6.8; time of application, early morning; and overcast skies. A total of 2.8 inches of rainfall or irrigation was recorded from 22 Jul through 25 Jul; a total of 0.3 inch rainfall or irrigation was recorded from 25 Jul through 26 Jul; and a total of 1.0 inch rainfall or irrigation was recorded from 27 Jul through 30 Jul. Efficacy data were recorded on 28 Jul and 30 Jul by counting the number of black cutworm larvae flushed to the surface within each PVC cylinder by using a soap irritant drench.

scholarly journals Evaluation of Merit and Tempo as a Preventative Treatment to Control Black Cutworm (Bcw) on Golf Course Greens, Wv, 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 331-331
Author(s):  
Joseph E. Weaver ◽  
James C. Farren
Keyword(s):  
Soil Temperature ◽  
Air Temperature ◽  
Environmental Conditions ◽  
Untreated Control ◽  
Golf Course ◽  
Preventative Treatment ◽  
Black Cutworm ◽  
Sample Area ◽  
Water Ph ◽  
Temperature Surface

Abstract Merit 75W and Tempo 20W were compared as side by side treatments on whole greens with ½ half of a green being a replicate of each treatment. Treatments were applied 23 May, replicated 4 times; there was no untreated control. Compounds were applied with a Cushman Turfmaster 125 sprayer and watered in with the same sprayer at 120 gal/acre. Water pH was 8.33. Environmental conditions at start (8:35 am) and finish (11:30 am) of treatment applications were, respectively: air temperature, 23.5°C and 32.5°C; RH, 43% and 54%; sky clear; soil temperature (surface), 25.5°C and 33.5°C, (1 inch) 25.5°C and 29°C; soil very moist. Efficacy was evaluated on 31 Jul (69 DAT) by treating entire greens with Tempo 2 at the rate of 0.04 lb (AI)/acre, syringing the green 8-10 min and counting the no. of cutworms flushed to the surface in a sample area of 4 m2. Two areas were sampled on each treated half of each green. Within these sample areas, the no. of obvious cutworm feeding holes were also counted.

scholarly journals Evaluation of Merit 75Wsp for Extended Management of Black Cutworm on Creeping Bentgrass at University Park, Pennsylvania, 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 322-322
Author(s):  
P. R. Heller ◽  
R. Walker
Keyword(s):  
Soil Temperature ◽  
Treatment Time ◽  
Sandy Loam ◽  
Creeping Bentgrass ◽  
Dry Weight ◽  
Particle Size Analysis ◽  
Size Analysis ◽  
Black Cutworm ◽  
Time Of Application ◽  
Water Ph

Abstract Treatment plots were 10 X 8 ft, arranged in a RCB design, replicated 4 times. Liquid formulations were applied by using a CO2 compressed air sprayer with 6 8O02VS TeeJet nozzles mounted on an 8 ft boom, operating at 28 psi, and applied in 756 ml of water/80 ft2 or delivering 2.5 gal/1,000 ft2. At treatment time (14 Jun), the following soil and environmental conditions existed: air temperature, 72°F; soil temperature at 1 inch depth, 78°F; soil temperature at 2 inch depth, 70°F; RH, 62%; amount of thatch, 0.125 inch; soil textural class, sandy loam; soil particle size analysis: 73.9% sand, 21.0% silt, 5.1% clay; soil moisture (oven dry weight), 31.6%; organic matter, 5.4%; water pH, 7.0; soil pH, 6.6; time of application, mid morning; and clear skies. The area received 0.2 inch of irrigation immediately after treatment (14 Jun). Efficacy data was recorded on nine sampling dates (23 Jun, 30 Jun, 7 Jul, 14 Jul, 28 Jul, 11 Aug, 23 Aug, 8 Sep, 13 Sep) by counting the number of black cutworm larvae flushed to the surface within a 1.0 yd2 wood frame sampling area using a soap irritant drench of 15 ml Lemon Joy™dishwashing detergent in 2 gal of water.

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 Evaluation of Talstar, Dursban, and Experimental Formulations to Manage Black Cutworm on Creeping Bentgrass at the Valentine Turfgrass Research Center, University Park, Pennsylvania, 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 322-324
Author(s):  
P. R. Heller ◽  
R. Walker
Keyword(s):  
Soil Temperature ◽  
Treatment Time ◽  
Creeping Bentgrass ◽  
Dry Weight ◽  
Early Morning ◽  
Particle Size Analysis ◽  
Size Analysis ◽  
Black Cutworm ◽  
Time Of Application ◽  
Loamy Sand Soil

Abstract Treat-ment plots were 10 X 8 ft, arranged in a RCB design, replicated 4 times. Liquid formulations were applied by using a CO2 compressed air sprayer with 6 8002VS TeeJet nozzles mounted on an 8 ft boom, operating at 28 psi, and applied in 756 ml of water/80 ft2 or delivering 2.5 gal/1,000 ft?2. At treatment time (24 Jul), the following soil and environmental conditions existed: air temperature, 75°F; soil temperature at 1 inch depth, 78°F; soil temperature at 2 inch depth, 74°F; RH, 83%; amount of thatch, 0.125 inch; soil textural class, loamy sand; soil particle size analysis: 80.0% sand, 11.5% silt, 8.5% clay; soil moisture (oven dry weight), 31%; organic matter, 3.4%; water pH, 7.0; soil pH, 6.6; time of application, early morning; and overcast skies. The area was irrigated in with 0.1 inch of water immediately after treatment (24 Jul). Efficacy data was recorded 3 DAT and 7 DAT by counting the number of black cutworm larvae flushed to the surface within a 1.0 yd2 wood frame sampling area using a soap irritant drench of 15 ml Lemon Joy™dishwashing detergent in 2 gal of water.

scholarly journals Management of Black Cutworm on Creeping Bentgrass with Experimental Formulations, Tempo 20Wp, and Dursban Pro, 1996

1997 ◽  
Vol 22 (1) ◽  
pp. 348-348
Author(s):  
P. R. Heller ◽  
R. Walker
Keyword(s):  
Soil Temperature ◽  
Treatment Time ◽  
Creeping Bentgrass ◽  
Dry Weight ◽  
Research Area ◽  
Particle Size Analysis ◽  
Size Analysis ◽  
Black Cutworm ◽  
Time Of Application ◽  
Wood Frame

Abstract Treatment plots were 6 X 10 ft, arranged in a RCB design and replicated 4 times at University Park, PA. Liquid formulations were applied by using a CO2 compressed air sprayer with 4 8002VS TeeJet nozzles mounted on a 6 ft boom, operating at 28 psi, and applied in 454 ml of water/60 ft2 or delivering 2.0 gal/1,000 ft2. Treatments were applied on 15 Aug following artificial infestation of research area with 2nd and 3rd instar black cutworms. An average of 16/yd2 cutworm larvae was recorded on 13 Aug prior to treatment. The entire experimental area was covered with bird netting until post-treatment counts were recorded on 17 Aug. At treatment time (15 Aug) the following soil and environmental conditions existed: air temperature, 70°F; soil temperature at 1 inch depth, 64°F; soil temperature at 2 inch depth, 64°F; RH, 93%; amount of thatch, 0.0625 inch; soil textural class, loam; soil particle size analysis; 51.0% sand, 40.6% silt, 8.4% clay; soil moisture (oven dry weight), 23.9%; organic matter, 3.9%; watei pH, 7.0; soil pH, 6.1%; time of application, mid-afternoon; and overcast skies. A total of 2.6 inch of rainfall occurred after treatments had been applied Evaluation was done 2 DAT (17 Aug) and 6 DAT (21 Aug) by counting the number of black cutworm larvae flushed to the surface within a 1.0 yd2 wood frame sampling area using a soap irritant drench of 30 ml Lemon Joy™ dishwashing detergent in 2 gal of water.

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 DIFFERENTIAL RESPONSE OF SEVERAL ROW COVERS ON YIELD OF WHITE POTATOES IN MISSOURI

HortScience ◽  
1990 ◽  
Vol 25 (8) ◽  
pp. 860e-860
Author(s):  
Mack A. Wilson ◽  
Michael Aide
Keyword(s):  
Soil Temperature ◽  
Plant Height ◽  
Air Temperature ◽  
Sandy Loam ◽  
Bare Soil ◽  
Differential Response ◽  
Potato Plants ◽  
Row Covers ◽  
The Mean

Four types of row covers were evaluated on 'Norchip' and 'Atlantis' potatoes at Charleston, Missouri on a Lilbourn sandy loam entisol. Row covers used were spun-bonded polyester, insolar slitted, clear slitted and VisPore. The row covers increased the mean afternoon soil temperature above the ambient afternoon air temperature from 3 to 25°F when potato plants were covered. The number of plants which emerged were significantly different among treatment for the cultivar 'Norchip'. Data for plant height was significantly different between the bare soil control and the row cover treatments. Yield (Kg/HA) were higher with the spunbonded polyester and insolar slitted row covers for both number and weight of grade A (47.6-82.6 mm) potatoes, and results were significantly different.

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.

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