TURFGRASS FUNGICIDE RESEARCH REPORT J. M. Vargas, Jr., and R. Detweiler Department of Botany and Plant Pathology Michigan State University

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1 TURFGRSS FUNGC RESERCH REPORT - J. M. Vargas, Jr., and R. Detweiler Department of Botany and Plant Pathology Michigan State University Snow Mold Fungicide - Fertility Trials - - Boyne Highlands Resorts, Harbor Springs, Michigan Establishment: The Typhula snow mold fungicide - fertility trials were conducted at the Boyne Highlands Resort, Harbor Springs, M on 'Penncross' creeping bentgrass mowed at / inch. Treatments were applied to ' x plots in three repetitions of a random block design on November,. The wettable powders and flowables were applied with a small-plot CO sprayer at a volume of gal/acre. The granular fungicide and fertilizer applications were made with a ft Scotts droptype spreader. The plot ratings were taken on pril,. Results: The predominant snow mold present was Typhula blight caused by Typhula incarnata. small amount of Fusarium patch was present and is so indicated in the tables. The most effective treatments were Calo-Gran lbs., Calo Clor oz. Daconil oz + RP oz., Daconil oz. + RP oz., Daconil oz., Daconil oz. + RP oz., and Scotts F + F x rate. While the table would indicate that most of the control coming from the Daconil + RP combination was due to the Daconil, the combination did in some cases improve the efficacy of Daconil. This years results were comparable to the - season when Calo-Clor, Calo Gran and Daconil fungicides were the best products. The PCNB products, Scotts F + F, and Terraclor gave significant control compared to the untreated check but not as good as other seasons. The chloroneb product, Tersan SP, also gave significant control compared to the untreated check, but certainly not acceptable control from a practical point of view. The reason for the increase in the amount of snow mold present in - and this season in PCNB and chloroneb treatments is not known.

2 Percent Typhula blight, except where otherwise indicated, on Penncross creeping bentgrass at Boyne Highlands Resort, Harbor Springs, Mi. Treatment Calo Gran Calo Clor Daconil + Rp Daconil + Rp Daconil Daconil + Rp Scotts F + F Daconil Daconil + Rp Daconil Terraclor (wp) cti-dione RZ Terraclor (GR) Rp Tersan SP Calo Clor + Terraclor (wp) Calo Clor BFN G-- Rp G-- Tersan SP + Calo Clor Rp Tersan SP + Terraclor (wp) DPX Terraclor (wp) DPX BFN Tersan SP Rate/ ft" lbs. oz. oz. + oz. oz. + oz. oz. oz. + oz. X oz. oz. + oz. oz. oz. oz..bs. oz. oz. oz. + oz. oz. fl oz.. gm. ai. oz gm. ai. oz. + oz. oz. oz. + oz. oz. oz. oz. fl. oz. oz. a a a a oo a a Repetition l a a a a a a a a a a VE DMR b B BC BC BC BCD BCD C F EFG EFG FGH FGH FGHJ FGHJ GHJ GHJ GHJ GHJ GHJ HJ HJ J J J J J J - represents the following percent Fusarium patch included in total number: Dae. + Rp. oz. + oz. -%; Dae. + Rp. oz.+ oz. - %; Dae. oz. - % + % respectively; Dae. + Rp. oz. + oz. - % + % respectively; Dae. oz. - %; Dae. + Rp. oz. + oz. - % + % respectively; Dae.. oz. - % + % respectively; Tersan SP oz. - %; G--,. gm ai - %; Ter. SP + Terr. oz. + oz. - %; check % + % respectively - treatments followed by same letter are not significantly different at % level.

3 Plum Hollow Snow Mold Fungicide Report - -, Plum Hollow Golf Course, Livonia, M. Establishment: This snow mold study was established at Plum Hollow Golf Course on a Poa annua fairway maintained at about /" height of cut. Treatments were applied to ' x plots in three repetitions of a random block design on November,. The wettable powders and flowables were applied with a small-plot COo sprayer at a volume of gal/acre. The granular fungicide applications were made with a * Scotts drop-type spreader. The readings were taken on March,. Results: The results in this study are somewhat inconclusive due to a lack of severe disease pressure. The predominant disease was pink snow mold (Fusarium nivale), although a good deal of gray snow mold (Typhula incarnata) was present in certain plots.

4 Treatment Daconil Terraclor (GR) Tersan SP + Tersan Terraclor (wp) Daconil Sets. F + F BFN Rp Daconil Calo-Clor. Tersan SP Daconil + Rp Calo-Gran Tersan SP G-- Bromosan Rp Daconil + Rp Daconil + Rp DPX DPX Daconil + Rp Daconil + Rp Tersan Rp Daconil + Rp Daconil + Rp BFN Daconil + Rp G-- Daconil + Rp cti-dione - Thiram cti-dione - RZ cti-dione - TGF plots Plum Hollow Snow Mold Studies % area infested with pink snow mold, except where otherwise indicated Rate/ ft* oz.. lbs. oz. + oz oz. oz. X fl. oz. oz. oz. pz. oz. oz. + oz. lbs. oz. gm ai oz. oz. oz + oz. oz. + oz oz. oz. oz. + oz oz. + oz oz. oz. oz. + oz oz. + oz. fl oz. oz. + oz. gm ai oz. + oz, oz. oz. oz.. infected primarily with gray snow mold?- VE B B B B B B B B B B B B B B B B B B B B BC BC BC BC BC BC BC C C treatments followed by same letter are not significantly different from each other at the % level.

5 Helminthosporium (Melting-Out) study - The Helminthosporium vagans (melting-out) fungicide trials were conducted at the MSU soils research farm on Park Kentucky bluegrass maintained at a V height of cut. Fungicide treatments were applied on a bi-weekly schedule on May, May and May, except as noted on the data charts. ll liquid and wettable powder formulations were applied with a C«small plot sprayer at a volume of gal/acre. The granular formulations were applied with a Scotts drop-type spreader. The plots were ' x ' and were replicated three times in a randomized block design. The plots were rated on June.

6 HELMNTHOSPORUM'LEF SPOT STUDY RTNGS MSU SOLS FRM - // QULTY RTNGS -, best -, worst Treatment Lesco DPX DPX + Tersan DPX + Tersan Lesco DPX Dae. -WP Rp Dae. - Fl BFN BFN BFN Rp DPX Tersan Dae. -F Dae. - Fl Dae. -WP cti-dione TGF BFN cti-dione TGF cti-dione Plus Rp cti-dione Plus DPX + Tersan G- (EC) BFN (GR) Dae. - F BFN BFN BFN (GR) Bromosan - FL BFN G- (EC) BFN Bromosan WP Caddy.+ Bromosan-FL a Caddy Rate/ ft oz (ai). oz (ai) + oz (ai) + oz oz (ai) oz oz (ai) f oz oz fl oz f oz. oz (ai). oz (ai) oz f oz f oz oz. oz fl oz. oz. oz. oz (ai). oz oz (ai) + gm (ai) lbs f oz oz f oz lbs fl oz fl gm (ai) oz. oz f oz + fl oz fl These materials applied only once prior to ratings. This material " " twice prior to ratings. NOTE: Repetition VE Treatments followed by same letter are not significantly different from each other at the % level. DMR B BC BC BCD BCD BCD BCD BCD BCD BC BC BC BC BC BC BCF BCF BCF BCF BCF BCF BCF BCF BCF BCF BCF BCF BCF BCF BCF BCF CF CF F EF F

7 HELMNTHOSPORUM LEF SPOT STUDY RTNGS MSU SOLS FRM - // DSESE RTNG -, least disease,, most disease Treatment DPX Dae. - WP DPX + Tersan Rp DPX DPX DPX + Tersan Dae. - WP BFN Rp DPX + Tersan G - (EC) BFN Lesco cti-dione TGF Rp Dae. - F Lesco Dae. - Fl BFN BFN BFN BFN Bromosan WP G - (EC) BFN BFN Bromosan FL Dae. - F BFN - GR BFN cti-dione TGF cti-dione Plus BFN - GR cti-dione Plus Caddy + Bromosan - FL a Dae. - FL Caddy Tersan Rate/ ft oz (ai) oz oz (ai) +. oz (ai) oz (ai). oz (ai). oz (ai) + oz fl oz oz (ai) oz (ai) + gm (ai) f oz oz. oz. oz (ai) f oz oz f oz oz f oz oz f oz oz gm (ai) fl oz fl oz f oz f oz lbs oz. oz. oz lbs. oz _ fl oz + f oz fl oz oz oz oz oz floz These materials applied only once prior to ratings. This material applied twice only prior to ratings. NOTE: Repetition VE Treatments followed by same letter are not significantly different from each other at the % level. DMR B B B B B B BC BC BC BC BCD BCD BC BC BCF BCF BCF BCF BCFG BCFG BCFGH BCFGH BCFGH BCFGH CFGH FGH FGH EFGH FGCH FGH FGH GH GH H H

8 Results: Helminthosporium melting-out The following treatments all gave significant control of Helminthosporium melting-out when compared to the untreated control: DPX,. oz ai, oz ai, oz ai; DPX oz ai + Tersan oz; DPX. oz ai + Tersan oz; DPX oz ai + Tersan oz; Daconil (WP) oz, oz; Daconil (F) fl oz; Daconil ( FL) fl oz; Rp. oz ai,. oz ai, oz ai; BFN fl oz; G (EC) gm ai; BFN fl oz, fl oz; cti-dione TGF. oz; Lesco oz, oz; and BFN oz. There are several new fungicides with excellent potential for the control of Helminthosporium melting-out. These new materials, along with established materials like Daconil and cti-dione TGF, should provide a good selection of Helminthosporium melting-out fungicides for the future. Common Dollar Spot - Fungicide Study - The common (benzimidazole sensitive) dollar spot (Sclerotinia homeocarpa) study was conducted on a Poa annua fairway on the Burroughs Farms Golf Course, Brighton, Michigan. The ' x ' plots were laid out in three replications in a randomized block design. ll liquid fungicide applications were made with a CO small-plot sprayer at a volume of gal/acre. ll granular formulations were applied with a Scotts drop-type spreader. The dollar spot infestation was severe over the entire plot area prior to the first fungicide application on ugust. second treatment was made on September, with the ratings being taken on September.

9 Common Dollarspot Fungicide Study - Disease Rating Scale - (no disease) - (severe disease) Treatment Tersan Fungo Cleary Cleary -FL Spectro FDS Fert. --+BRS Fung. FDS Fert. + BRS Fung. X FDS FERT. + BRS Fung. X MF Kromad. Daconil -F DPX + Tersan DPX Lesco Lesco BFN BFN BFN Bayleton - WP Bayleton - WP Bayleton - WP BFN Bromosan WP CG--EC DPX DPX + Tersan DPX + Tersan Daconil - WP Bayleton WP BFN BFN Bromosan FL Caddy Bromosan FL + Caddy DPX Rp cti-dione Plus cti-dione TGF + Fe S cti-dione TGF + Fe SO? Daconil - FL Rp Rp CG--EC LLSE cti-dione TGF cti-dione Plus Rate/ ft" oz oz oz fl oz oz. lbs lbs. lbs oz oz f oz. oz ai +. oz oz ai oz oz oz f oz f oz. oz ai oz ai oz ai f oz oz gm ai oz ai. oz ai + oz oz ai + oz oz. oz ai f oz oz fl oz fl oz fl oz + fl oz. -oz ai oz. oz. oz +. oz. oz +. oz fl oz. oz. oz gm ai :. oz. oz Plot disease ratings VE (DM B B B B B B B B B BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC

10 Treatment Rate/ ft Plot disease ratings VE (DMR) cti-dione TGF. oz C LLSE : D qua-gro fl oz * * * D -. D *phytotoxicity NOTE: Treatments followed by same letter are not significantly different at % level. Results: Common Dollarspot study ll treatments with the exception of qua-gro fl oz and LLSE at the : gave significant control when compared to the untreated control. The entire area had a rating of - when the study was initiated. The dollar spot was so severe that individual spots could not be counted so an estimated % disease was used. Benzimidazole - Resistant Dollarspot Study - The benzimidazole - resistant dollarspot (Sclerotinia homeocarpa) study was conducted on a Toronto creeping bentgrass nursery at Maple Lanes Golf course in Warren, Michigan. The x plots were laid out in three replications in a randomized block design. ll liquid treatments were applied with a small-plot CO sprayer at a volume of gal/acre. The granular formulations were applied with a Scotts - drop type spreader. Treatments were applied to the plots on ugust, ugust and September. The disease infestation had reached severe levels prior to the first application. The ratings were taken on September.

11 Treatment DPX + Tersan DPX Daconil - F Bayleton - WP Daconil - WP BFN - GR BFN Bayleton WP BFN Rp BFN CG--EC cti-dione Plus Daconil - FL cti-dione TGF + Fe SO/, Lesco cti-dione TGF " Spectro FDS Fert. + BRS Fung. X FDS Fert. + BRS Fung. X LLSE Cleary - WP Kromad Caddy FDS Fert BRS Fung MF Fungo Tersan Tersan Cleary - FL LLSE NOTE: Benzimidazole - Resistant Dollarspot Study - Disease rating scale: (no disease) - (severe disease) H Rate/ ft" oz ai + oz oz ai f oz oz ai oz lbs oz oz ai f oz oz fl oz gm ai oz f oz oz + oz oz oz oz lbs -. lbs : oz oz fl oz.. lbs oz oz oz oz fl oz : Plot disease rating ll treatments followed by the same letter are not significantly different at the % level. VE (DM B B B B B BC BC BC BC BC BC BC C C D E E

12 Results: Benzimidazole Resistant Dollarspot The following treatments all gave significant control when compared to the untreated control: Daconil (F) fl oz, Daconil (WP) oz, Daconil ( FL) fl oz, DPX oz ai, DPX oz ai + Tersan oz, Bayleton ( WP) oz ai, Bayleton ( WP) oz ai, BFN (GR) lbs., BFN oz, BFN fl oz, Rp oz, BFN fl oz, CG (EC) gms ai, cti-dione Plus oz, cti-dione TGF oz + FeS oz, cti-dione TGF oz, Lesco oz and Spectro oz. s expected, the benzimidazole systemic fungicides did not control this strain of Sclerotinia homeocarpa. Many benzimidazole - resistant strains of Sclerotinia homeocarpa are very vigorous and repeated applications are necessary to achieve control with the fungicides that are available at this time. nthracnose - Fungicide Study # - The anthracnose (Coiletotrichum graminicola) fungicide study # was conducted on the Bay Pointe Golf Club in West Bloomfield, Mi., on an irrigated annual bluegrass fairway maintained at a /" height of cut. The plot was laid out in replications in a randomized block design. The liquid applications were made with a CO small-plot sprayer at a volume of gal/acre while the granular formulations were applied with a Scotts drop-type spreader. ll treatments were applied to the plots on ugust and ugust, except as noted on the data charts. The ratings were taken on ugust.

13 Treatment Lesco FDS Fert. + BRS Fung. X FDS Fert. O--+BRS Fung. DPX DPX Fungo Lesco Tersan Rp cti-dione TGF Rp BFN * Caddy BFN BFN DPX B"FN cti-dione Plus Rp Daconil - FL Cleary - FL BFN FDS Fert. + BRS Fung. X Daconil -F cti-dione Plus LLSE Bromosan WP Bayleton WP CG--EC cti-dione TGF Daconil - WP BFN Bromosan - FL CG--EC Bromosan FL + Caddy Kromad LLSE MF BFN Cleary WP BFN Bayleton WP NOTE: nthracnose - Fungicide Study # Bay Pointe Golf Course, Union Lake, M % area diseased Rate/ ft" oz lbs. lbs oz ai oz ai oz oz oz. oz. oz. oz lbs fl oz fl oz f oz. oz ai oz. oz oz f oz fl oz f oz. lbs f oz. oz : oz oz ai gm ai. oz - oz f oz f oz gm ai f oz + fl oz oz : oz lbs. oz oz oz ai *BFN applied only once during season. % anthracnose/plot VE (DMR) B B B BC BCD BCD BCD BCD BCD BCD BCD BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC C C E ll treatments followed by the same letter are not significantly different at the % level.

14 nthracnose Fungicide Study # - The nthracnose (CoHetotrichum graminicola) fungicide study # was conducted on the Burroughs Farms Golf Course, Brighton, Mi., on an irrigated annual bluegrass fairway. The plots were laid out in replications of a randomized - block design in an area that was already suffering heavy damage from the disease. The liquid fungicides were applied with a C? small-plot sprayer at a volume of gal/acre. The granular formulations were applied with a Scotts drop-type spreader. Treatments were applied to the plots on ugust and September. The ratings 'were made on September.

15 Treatment FDS Fert. + BRS Fung. X Lesco CG--EC cti-dione TGF FDS Fert. + BRS Fung. X Lesco FDS Fert. --+BRS Fung. Caddy BFN BFN BFN Cleary - FL cti-dione Plus CG- (EC) BFN BFN DPX Bayleton WP Rp LLSE Caddy + Bromosan FL Rp BFN Fungo Bromosan WP Bromosan FL Daconil -F MF Tersan Daconil WP LLSE Kromad Daconil - FL DPX Cleary NOTE: nthracnose - Fungicide Study # - Burroughs Farms Golf Course, Brighton, Mi % area diseased Rate/ ft" lbs oz gm ai. oz. lbs oz. lbs fl oz f oz. fl oz. fl oz. fl oz.. oz. gm ai oz f oz oz ai oz ai oz : fl oz + fl oz. oz oz oz oz f oz f oz oz oz oz : oz f oz oz ai oz % anthracnose/plot VE ll treatments followed by the same letter are not significantly different at the % level. (DM B BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC BC C

16 Results: nthracnose Fungicide Studies The original anthracnose study was conducted at the Dearborn Country Club, Dearborn, Mi. When no disease developed on this site, two new studies were initiated, one at the Bay Pointe Golf Club, West Bloomfield, Mi. and one at Burrough's Farms in Brighton, Mi. Both new plot sites were already suffering severe anthracnose infections. There was initially no recovery in either treated or non-treated plots on both sites. When recovery did occur, it occurred simultaneously in both treated and non-treated plots. Hence, there was no significant difference in disease control between the treated plots and the untreated control. Fusarium Blight Study - The Fusarium blight (Fusarium roseum) study was conducted on a commercial lawn area at the Vlasic Pickle Corporation building in Farmington, Michigan on irrigated Merion Kentucky bluegrass turf that had previously been suffering from a Fusarium infestation. The plots were x and were replicated four times in a randomized block design. The turf was maintained at a two-inch height of cut. This study consisted of fungicides, wetting agents and nematicides. ll treatments were applied on July. pplication of both fungicides and wetting agents was accomplished with an Ortho hose jar applicator, while the nematicides were applied with a Scotts drop-type spreader. The entire area was irrigated prior to the applications and all applications were drenched into the root zone. The ratings were taken on July.

17 Treatment Tersan Tersan Tersan + Vydate (EC) Rp BFN Vydate (EC) DPX DPX Bayleton ( WP) + Tersan qua-gro + Tersan Das inat Bayleton ( WP) Bayleton ( WP) Rp BFN BFN BFN Bayleton ( WP)' DPX Cleary BFN CG--EC BFN BFN BFN Vydate (EC) Fungo CG--EC qua-gro NOTE: Fusarium Blight Study - Number of rings/plot Rate/ ft" oz oz oz + f oz oz (foliarly) f oz fl oz oz ai oz ai oz + oz f oz + oz lbs oz. oz ai-foliarly oz-foliarly lbs lbs fl oz oz ai-foliarly oz ai oz f oz gm ai fl oz f oz f oz f oz oz gm ai f oz _ No. ctive rings/plot V VE Treatments followed by the same letter are not significantly different from each other at the % level. (DMR)

18 Results: Fusarium Blight Fungicide Study severe outbreak of Fusarium blight did not occur during and by early September the entire area had recovered from previous seasons scars. This often happens to areas that have been severely affected with Fusarium blight, due to the extra care they receive (watering + fertility) from the attention drawn to the area by the research being conducted there. t also points out the importance of good cultural practices like watering and nitrogen fertility in the control of Fusarium blight. LLSE - nthracnose Study - The LLSE - nthracnose (Colletotrichum graminicola) study was applied on an annual bluegrass fairway on the Burroughs Farms Golf Course, Brighton, Mi. The fairway received normal maintenance except for fungicide and fertilizer treatments, which were applied only in conjunction with the experiment. Treatments were applied monthly, except as noted on the data charts. The granular treatments were applied with a Scotts drop-type spreader while the LLSE and Tersan were applied with a CO small-plot sprayer at a volume of gal/acre. Treatments were applied to the plot on June, July, and ugust, except as noted on the data charts. The ratings were made on September.

19 LLSE - nthracnose Study - Burroughs Farms Golf Course Plot area received: Urea (/ b. N) /, /, / Tersan ( oz.) / Quality Rating Scale, best -, worst Treatment LLSE (/ only) LLSE (/ only) LLSE (/ only),lse (monthly) LLSE (monthly) Potassium (--) monthly LLSE (/ only) Phosphorus (--) monthly LLSE (/ only) LLSE (/ only) Note: Rate/ ft " : : : : : : lb. K : lb. P : Turf Qual VE Treatments followed by the same letter are not significantly different at the % level. (DM B B B B B LLSE - nthracnose Burroughs Farms Study - Golf Course Plot area received: Urea ( lb. N) /, /, Tersan ( oz.) / Quality Rating Scale:, best -, worst Treatment Phosphorus (--) monthly LLSE (/ only) LLSE (/ only) LLSE (monthly) LLSE (/ only) LLSE (/ only) Potassium (--) monthly LLSE (monthly) LLSE (/ only) LLSE (/ only) Note: Rate/ ft lb. : : : : : lb. : : : P K / Turf Qual lty VE Treatments followed by the same letter are not significantly different at the % level. (D

20 Plot area received: Quality Rating Scale: Treatment LLSE (monthly) LLSE (monthly) Phosphorus (--) monthly LLSE (/ only) LLSE (/ only) LLSE (/ only) Potassium (--) monthly LLSE (/ only) LLSE (/ only) LLSE (/ only) Note: LLSE-nthracnose Study - Burroughs Farms Golf Course Urea (/ lb. N) /, /, /, best -, worst Rate/ ff : : lb. : : : lb. : : : P K Turf Treatments followed by the same letter are not significantly different at the % level. Qual ity VE (DMR) B B B B B B B B B Plot area received: Quality Rating Scale: Treatment Phosphorus (--) monthly LLSE (/ only) LLSE (/ only) LLSE (monthly) LLSE (/ only) LLSE (/ only) Potassium (--) monthly LLSE (monthly) LLSE (/ only) LLSE (/ only) Note: LLSE-nthracnose Study - Burroughs Farms Golf Course Urea ( lb. N) /, /, /, best -, worst Rate/ ft " lb. : : : : : lb. : : : P K Turf Treatments followed by the same letter are not significantly different at the % level. Qual ity VE......,. (DMR)

21 Nitrogen Fertility Timing Study - The nthracnose (Coiietotrichum graminicola) fertility study was established at Burroughs Farms Golf Course, Brighton, M on a well-maintained annual bluegrass fairway. The fairway received normal maintenance except for fungicide and fertilizer treatments, which were applied only in conjunction with the experiment. Fertility treatments were applied on June, July, ugust and September. Tersan at oz/ ft was applied on July to one-half the study. Granular applications were made with a Scotts drop-type spreader while the Tersan was applied with a CO small plot sprayer at a volume of gal/acre. The quality ratings were made on October. Results: LLSE-nthracnose Study, Burroughs Farms Study # : There was no significant improvement in turf quality in the LLSE-treated plots compared to the check, which received three monthly applications of / lb urea nitrogen/ ft (/, /, /), a oz/ ft Tersan application, and no LLSE. Study # : There was no significant improvement between LLSE, applied in combination with b urea nitrogen/ ft applied monthly (/, /, /) and oz/ ft of Tersan applied on /, and the untreated checks, which received only the urea and Tersan treatments. Study #: There was no significant improvement in the LLSE-treated plots compared to the check, which received monthly applications of / lb urea nitrogen/ ft (/, /, /) and no LLSE. Study # : There was no significant improvement in the LLSE-treated plots which received monthly applications of b urea nitrogen/ ft (/, /, /) when they were compared to those plots receiving only the urea.

22 Nitrogen Fertility Timing Study with Fungicide - Burroughs Farms Golf Course Plot area treated with Tersan ( oz/ ft ) / Treatment Rate/ ft' Turf Quality BDU (fine) BDU (coarse) Urea BDU (Coarse) BDU (Fine) Urea Note: lb. N lb. N lb. N / lb. N / b. N / lb. N VE.... (DMR) Treatments followed by the same letter are not significantly different at the % level. B BC BC C Treatment BDU BDU BDU Urea BDU Urea Note: Nitrogen Fertility Timing Study without Fungicide Burroughs Farms Golf Course (Fine) (Coarse) (Fine) (Coarse) Rate/ ft lb. N b. N / b. N lb. N / b. N / lb. N Turf Qua! ty in Treatments followed by the same letter are not significantly different at the % level. l i VE.... (D BB B C