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WHITE GRUB CONTROL ON A GOLF COURSE ROUGH, 2009

WHITE GRUB CONTROL ON A GOLF COURSE ROUGH, 2009 Arthropod Management Tests 2012, Vol. 37 doi: 10.4182/amt.2012.G18 (G18) SHEEPS FESCUE: Festuca ovina L. David. R. Smitley Department of Entomology Michigan State University East Lansing, MI 48824-1115 Phone: (517) 353-9672 Fax: (517) 353-4354 – fax E-mail: smitley@msu.edu Terrance W. Davis Phone: 517-353-9672 E-mail: tdavis@msu.edu European chafer: Rhizotrogus majalis (Razoumowsky) Japanese beetle: Popillia japonica Newman An area of non-irrigated abandoned fairway mowed to rough height on The Old Channel Trail Golf Club in Montague, MI (43°24’27.13”N 86°26’08.26”W) was used for this test. The area had not been treated with insecticides since the mid 1960s. Starting prior to the initiation of the test, the area was mowed to rough height and was subsequently mowed about 5 times over the course of the season. Insecticide treatments were replicated 6 times and consisted of 4 ft × 4 ft plots separated from each other by 2 ft-wide buffer strips. The plots within the grid were blocked from the north to south. Treatments were applied on 21 May or 17 Jul. Liquid application treatments were made at 50 psi through a single nozzle hand-held R & D Sprayers CO sprayer with an 8003 nozzle at a rate of 175 gal/acre. Granular application treatments were made with a hand-held “shaker”. Acelepryn and Merit treatments applied on 21 May were watered-in with ¼ inch of irrigation (2.5 gal per 16 ft ). Irrigation was applied with watering cans immediately after insecticide applications were completed. The plots were sampled by digging six 7 inch x 7 inch (2 ft 2) squares of turf from each plot on 29 Sep and 16 Oct. Grubs were collected from each plot and were brought back to the lab to be ID’d to species by looking at the rastral patterns under a dissecting microscope. 52.1% were European chafers and 46.2% were Japanese beetles. Data was analyzed by a one-way ANOVA with a Fisher’s protected LSD test for mean separation. All treatments except the low rate of Acelepryn SC reduced survival of Japanese beetle larvae significantly when compared to the Untreated Check treatment. The Merit 0.5G, GrubEx SL Killer 0.2 G, Acelepryn 0.2 G at 60 lb/A, Merit 75 WP applied on 7 Jul, Meridian 25 WG applied on 17 Jul and the low rate of Acelepryn SC reduced the numbers of European chafer larvae significantly compared to the untreated check. All of the insecticide treatments in the test reduced the overall number of grubs significantly except for the 2 rates of Acelepryn SC and the High Yield Grub Free Zone. The protocol for the project called for a much-reduced rate of the High Yield Grub Free Zone than the labeled rate. This project was supported by funding from industry and the Michigan Turf Foundation. 1 Arthropod Management Tests 2012, Vol. 37 doi: 10.4182/amt.2012.G18 Grubs per 2 ft Treatment/ Formulation rate-prod/area JB EC All Grubs Merit 0.5G 60 lb/acre 21 May 1.83a 3.33a 5.17a GrubEx SL 125 lb/acre 17 Jul 3.83a 5.17ab 9.00ab Killer 0.2G Acelepryn 0.2G 60 lb/acre 21 May 3.00a 6.67abc 9.67abc Merit 75WP 8.5 oz/acre 17 Jul 3.33a 6.50abc 10.17abc Meridian 25 WG 17 oz/acre 17 Jul 1.50a 11.17abcd 12.67abcd Meridian 25 WG 17 oz/acre & Daconil 6 F 5.5 fl oz/acre 17 Jul 1.83a 13.00bcde 14.83bcd Merit 75WP 6.4 oz/acre 21 May 4.33a 11.17bcde 15.50bcd Acelepryn 0.2G 50 lb/acre 21 May 7.67ab 14.67cde 22.50bcd Acelepryn 1.67SC 8 fl oz/acre 21 May 16.83bc 12.83abcd 33.67cde Acelepryn 1.67SC 12 fl oz/acre 21 May 3.67a 18.17de 22.83de Hi Yield Grub 15 lb/acre 17 Jul 6.17ab 25.50cde 31.67de Free Zone 0.5G Untreated Check 23.50c 26.50e 50.83e Means followed by the same letter are not significantly different from each other. Date transformed log (x+1) prior to analysis of variance. Untransformed means are presented in tables. 2 Arthropod Management Tests 2012, Vol. 37 doi: 10.4182/amt.2012.G18 Part II: Materials Tested (G18) SHEEPS FESCUE: Festuca ovina L. David. R. Smitley Department of Entomology Michigan State University East Lansing, MI 48824-1115 Phone: (517) 353-9672 Fax: (517) 353-4354 – fax E-mail: smitley@msu.edu Brand Name Formulation Common Name Composition* Manufacturer** Merit 0.5 G imidacloprid 1-(6-chloro-3-pyridylmethyl)- Bayer Agricultural Products N-nitroimidazolidin-2-ylideneamine P. O. Box 4913 Kansas City, MO 64120 GrubEx Season 0.2 G imidacloprid 1-(6-chloro-3-pyridylmethyl)-N- Scott’s Long Grub Killer nitroimidazolidin-2-ylideneamine 14111 Scottslawn Rd. Marysville, OH 43041 Acelepryn 0.2 G chlorantraniliprole 3-Bromo-N-[4-chloro-2-methyl-6- DuPont Crop Protection (methylcarbamoyl)phenyl]-1-(3-chloro-2- P.O. Box 30 pyridine-2-yl)-1H-pyrazole-5-carboxamide Newark, DE 19714-0030 Merit 75 WP imidacloprid 1-(6-chloro-3-pyridylmethyl)-N- Bayer Agricultural Products nitroimidazolidin-2-ylideneamine P. O. Box 4913 Kansas City, MO 64120 Acelepryn 1.67 SC chlorantraniliprole 3-Bromo-N-[4-chloro-2-methyl-6- DuPont Crop Protection (methylcarbamoyl)phenyl]-1-(3-chloro-2- P.O. Box 30 pyridine-2-yl)-1H-pyrazole-5-carboxamide Newark, DE 19714-0030 Meridian 25 WG thiamethoxam (EZ)-3-(2-chloro-1, 3-thiazol-5-ylmethyl)- Syngenta 5-methyl-1, 3, 5-oxadiazinan-4- P.O. Box 18300 ylidene(nitro)amine Greensboro, NC 27419 Daconil 6F chlorothalanil 1,3-benzenedicarbonitrile,2,4,5,6- Crystal Chemical Inter-America Tetrachloro-chlorothalonil 10303 N.W. Freeway, Suite 512 Houston TX 77083 Hi Yield Grub 0.5G imidacloprid 1-(6-chloro-3-pyridylmethyl)-N- Voluntary Purchasing Groups, Inc. Free Zone nitroimidazolidin-2-ylideneamine Bonham,TX 75418 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Arthropod Management Tests Oxford University Press

WHITE GRUB CONTROL ON A GOLF COURSE ROUGH, 2009

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Oxford University Press
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© Published by Oxford University Press.
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2155-9856
DOI
10.4182/amt.2012.G18
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Abstract

Arthropod Management Tests 2012, Vol. 37 doi: 10.4182/amt.2012.G18 (G18) SHEEPS FESCUE: Festuca ovina L. David. R. Smitley Department of Entomology Michigan State University East Lansing, MI 48824-1115 Phone: (517) 353-9672 Fax: (517) 353-4354 – fax E-mail: smitley@msu.edu Terrance W. Davis Phone: 517-353-9672 E-mail: tdavis@msu.edu European chafer: Rhizotrogus majalis (Razoumowsky) Japanese beetle: Popillia japonica Newman An area of non-irrigated abandoned fairway mowed to rough height on The Old Channel Trail Golf Club in Montague, MI (43°24’27.13”N 86°26’08.26”W) was used for this test. The area had not been treated with insecticides since the mid 1960s. Starting prior to the initiation of the test, the area was mowed to rough height and was subsequently mowed about 5 times over the course of the season. Insecticide treatments were replicated 6 times and consisted of 4 ft × 4 ft plots separated from each other by 2 ft-wide buffer strips. The plots within the grid were blocked from the north to south. Treatments were applied on 21 May or 17 Jul. Liquid application treatments were made at 50 psi through a single nozzle hand-held R & D Sprayers CO sprayer with an 8003 nozzle at a rate of 175 gal/acre. Granular application treatments were made with a hand-held “shaker”. Acelepryn and Merit treatments applied on 21 May were watered-in with ¼ inch of irrigation (2.5 gal per 16 ft ). Irrigation was applied with watering cans immediately after insecticide applications were completed. The plots were sampled by digging six 7 inch x 7 inch (2 ft 2) squares of turf from each plot on 29 Sep and 16 Oct. Grubs were collected from each plot and were brought back to the lab to be ID’d to species by looking at the rastral patterns under a dissecting microscope. 52.1% were European chafers and 46.2% were Japanese beetles. Data was analyzed by a one-way ANOVA with a Fisher’s protected LSD test for mean separation. All treatments except the low rate of Acelepryn SC reduced survival of Japanese beetle larvae significantly when compared to the Untreated Check treatment. The Merit 0.5G, GrubEx SL Killer 0.2 G, Acelepryn 0.2 G at 60 lb/A, Merit 75 WP applied on 7 Jul, Meridian 25 WG applied on 17 Jul and the low rate of Acelepryn SC reduced the numbers of European chafer larvae significantly compared to the untreated check. All of the insecticide treatments in the test reduced the overall number of grubs significantly except for the 2 rates of Acelepryn SC and the High Yield Grub Free Zone. The protocol for the project called for a much-reduced rate of the High Yield Grub Free Zone than the labeled rate. This project was supported by funding from industry and the Michigan Turf Foundation. 1 Arthropod Management Tests 2012, Vol. 37 doi: 10.4182/amt.2012.G18 Grubs per 2 ft Treatment/ Formulation rate-prod/area JB EC All Grubs Merit 0.5G 60 lb/acre 21 May 1.83a 3.33a 5.17a GrubEx SL 125 lb/acre 17 Jul 3.83a 5.17ab 9.00ab Killer 0.2G Acelepryn 0.2G 60 lb/acre 21 May 3.00a 6.67abc 9.67abc Merit 75WP 8.5 oz/acre 17 Jul 3.33a 6.50abc 10.17abc Meridian 25 WG 17 oz/acre 17 Jul 1.50a 11.17abcd 12.67abcd Meridian 25 WG 17 oz/acre & Daconil 6 F 5.5 fl oz/acre 17 Jul 1.83a 13.00bcde 14.83bcd Merit 75WP 6.4 oz/acre 21 May 4.33a 11.17bcde 15.50bcd Acelepryn 0.2G 50 lb/acre 21 May 7.67ab 14.67cde 22.50bcd Acelepryn 1.67SC 8 fl oz/acre 21 May 16.83bc 12.83abcd 33.67cde Acelepryn 1.67SC 12 fl oz/acre 21 May 3.67a 18.17de 22.83de Hi Yield Grub 15 lb/acre 17 Jul 6.17ab 25.50cde 31.67de Free Zone 0.5G Untreated Check 23.50c 26.50e 50.83e Means followed by the same letter are not significantly different from each other. Date transformed log (x+1) prior to analysis of variance. Untransformed means are presented in tables. 2 Arthropod Management Tests 2012, Vol. 37 doi: 10.4182/amt.2012.G18 Part II: Materials Tested (G18) SHEEPS FESCUE: Festuca ovina L. David. R. Smitley Department of Entomology Michigan State University East Lansing, MI 48824-1115 Phone: (517) 353-9672 Fax: (517) 353-4354 – fax E-mail: smitley@msu.edu Brand Name Formulation Common Name Composition* Manufacturer** Merit 0.5 G imidacloprid 1-(6-chloro-3-pyridylmethyl)- Bayer Agricultural Products N-nitroimidazolidin-2-ylideneamine P. O. Box 4913 Kansas City, MO 64120 GrubEx Season 0.2 G imidacloprid 1-(6-chloro-3-pyridylmethyl)-N- Scott’s Long Grub Killer nitroimidazolidin-2-ylideneamine 14111 Scottslawn Rd. Marysville, OH 43041 Acelepryn 0.2 G chlorantraniliprole 3-Bromo-N-[4-chloro-2-methyl-6- DuPont Crop Protection (methylcarbamoyl)phenyl]-1-(3-chloro-2- P.O. Box 30 pyridine-2-yl)-1H-pyrazole-5-carboxamide Newark, DE 19714-0030 Merit 75 WP imidacloprid 1-(6-chloro-3-pyridylmethyl)-N- Bayer Agricultural Products nitroimidazolidin-2-ylideneamine P. O. Box 4913 Kansas City, MO 64120 Acelepryn 1.67 SC chlorantraniliprole 3-Bromo-N-[4-chloro-2-methyl-6- DuPont Crop Protection (methylcarbamoyl)phenyl]-1-(3-chloro-2- P.O. Box 30 pyridine-2-yl)-1H-pyrazole-5-carboxamide Newark, DE 19714-0030 Meridian 25 WG thiamethoxam (EZ)-3-(2-chloro-1, 3-thiazol-5-ylmethyl)- Syngenta 5-methyl-1, 3, 5-oxadiazinan-4- P.O. Box 18300 ylidene(nitro)amine Greensboro, NC 27419 Daconil 6F chlorothalanil 1,3-benzenedicarbonitrile,2,4,5,6- Crystal Chemical Inter-America Tetrachloro-chlorothalonil 10303 N.W. Freeway, Suite 512 Houston TX 77083 Hi Yield Grub 0.5G imidacloprid 1-(6-chloro-3-pyridylmethyl)-N- Voluntary Purchasing Groups, Inc. Free Zone nitroimidazolidin-2-ylideneamine Bonham,TX 75418

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Arthropod Management TestsOxford University Press

Published: Jan 1, 2012

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