12Table 4. Pythium Blight 2003Location: West Shore Country Club, Grosse Ile, MI.Rating Scale: Percent area infected (pretreatment rating.)Rating Scale: Quality (1-10, 7 = acceptable).Pretreatment RatingAug 13, 2003Percent AreaAug 18, 2003QualityAug 18Treatment and Rate/1000 sq ftInterval(Days)MeanLSD*MeanLSD*MeanProtect 4 oz + Alude 5.5 oz140.38a0.00a7.7Banol 3 fl oz140.25a0.08a8.0Alude 6.5 oz141.63a0.17a7.7Spectro 5 oz + Alude 5.5 oz141.44a0.17a7.0Vital Sign 6 fl oz + Junction 2 fl oz**140.69a0.25a6.3Vital Sign 6 fl oz140.31a1.67ab7.0Heritage 0.2 oz141.25a5.67b6.7Control ---0.38a12.33c6.0*Treatment means followed by the same letter are not significantly different (LSD, 5%).** Slight phytotoxicity observed.Anthracnose (Colletotrichum graminicola)Curative StudyA curative crown rot anthracnose study was set up on an annual bluegrass green atthe Hancock Turfgrass Research Center in E. Lansing, MI. It was mowed at 0.130”. Thedesign was a randomized complete block with 4 replicates of each treatment. Plots were6’ x 6’. Treatments were applied using a CO2 backpack sprayer with a double 8002E flatfan TeeJet nozzle boom at 100 GPA and 36 PSI. Plots were fertilized at about 1/4#N/1000ft2/month. Treatments were applied beginning on 2 July with subsequent applications ofthe 14-day treatments on 17 July and 29 July. Re-application of the 21-day treatment wasmade on 23 July, and reapplication of the 28-day treatment was made on 29 July. Plotswere rated for percent area with crown rot anthracnose. Data are shown in Table 7 andrepresent the percent plot area with anthracnose. Data were analyzed using ANOVA andmeans were separated with LSD (p=0.05).As can be seen in Table 7, many treatments provided significant disease controlcompared to the untreated control plots including Banner Maxx, Spectro + Alude, Heritage,Banner Maxx + Medallion, Clearys 3336F, Insignia + Propiconazole Pro, severalAndersons prototypes, Lesco T-Storm, and Clearys 3336 + Alude. No phytotoxicity wasobserved in this study this year.13Table 7. Crown Rot Anthracnose (Curative) StudyLocation: Hancock Turfgrass Research Center, E. Lansing, MIRating Date: August 9, 2003Rating Scale: Mean percent area infected with anthracnose.a Means followed by the same letter do not significantly differ (LSD, p=0.05).b Treatment applied on 21-July and 29-July only.Treatment and Rate/1000 sq ftInterval(Days)IIIIIIIVMeanLSDaBanner Maxx 2 fl oz1410151.8iSpectro 4 oz + Alude 5.5 fl oz1475234.3hiInsignia 20WG 0.5 oz + Propiconazole Pro 1.3MC 1 fl oz1415574.5hiHeritage 0.4 oz2871575.0g-iBanner Maxx 1 fl oz + Medallion 0.25 oz14515105.3g-iAND3125 4 lb14771057.3g-iAND3127 4 lb145510107.5e-iInsignia 20WG 0.5 oz145152108.0e-iSubdue Maxx 0.5 fl oz + Cl 3336 4 oz + Dac. Ultrex 3.2 oz +2-Jul751208.3e-iClearys 3336 4 oz + Daconil Ultrex 1.8 oz +17-Jul751208.3e-iSubdue Maxx 1 fl oz + Medallion 0.25 oz + Dac. Ultrex 3.2 oz29-Jul Clearys 3336 Flo 4 fl oz14257229.0d-iSpectro 4 oz142011059.0d-iLesco T-Storm 3.55 fl oz141552159.3d-iAND3126 4 lb1410152109.3d-iDaconil Ultrex 3.2 oz + Banner Maxx 1 fl oz1425201510.5d-iAND3124 4 lb1455201511.3d-iHeritage 0.2 oz14105102011.3d-iMedallion 0.5 oz14107103014.3c-iEndorse 6 oz14257201015.5b-hClearys 3336 4 oz + Alude 5.5 fl oz145355015.8b-hDaconil Ultrex 3.25 oz alt EcoGuard 20 fl oz14101553516.3b-hEndorse 4 oz14102073016.8b-hCJB EXP 0214 2 fl oz212510102517.5a-gEndorse 4 oz + Alude 5.5 fl oz142515152018.8a-fMedallion 0.25 oz142515152018.8a-fMedallion 0.33 oz14252025518.8a-fEcoGuard 20 fl oz143015152521.3a-dEcoGuard 20 fl oz alt Daconil Ultrex 3.25 oz14505103525.0a-cDaconil Ultrex 3.2