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B-17924

2005 Annual Report

Purdue University Turfgrass Science Program

 

Department of Agronomy
915 W State St
Purdue University
West Lafayette IN 47907-2054
765-494-8039

 

In this report, you may see pesticide use in research reports that do not conform to the pesticide label. These uses are not provided as recommendations. By law, it is the responsibility of the pesticide applicator, to follow current label directions for the specific pesticide being used. No endorsement is intended for products mentioned, nor criticism of products not mentioned. The authors, Purdue University, and the Midwest Regional Turf Foundation assume no liability from misuse of pesticide applications detailed in this report. The Agricultural Experiment Station of Purdue University is an equal action/equal opportunity institution.

Understanding the Data

Most of the data presented in this report was subjected to statistical analysis. Statistical procedures are a combination of logic and arithmetic that allow us to interpret information gathered from experiments. We most frequently use a Least Significant Difference Test to explain our test data.

Fisher’s Least Significant Difference (LSD) Test is a statistical procedure that determines if the difference found between two treatments is due to the treatment or if the difference is simply due to random chance. For each set of data, a value termed the LSD is calculated at a chosen level of significance. If the difference between two treatment means is greater than this calculated value then it is said to be a ‘significant difference’ or a difference not due to random chance. The level of significance that we use most often is 0.05 (LSD0.05). In other words, this difference will occur 95% of the time these treatments are compared. If ‘NS’ is reported at the bottom of a column of means, then no significant difference was found among the means in this group of data at a probability = 0.05.

 

Table of Contents:

Supporters of the Purdue University Turf Program in 2005 PDF

Cultivar and Species Evaluations

 
2000 NTEP Kentucky Bluegrass Test – 2005 Results and 5-Year Quality Ratings PDF
2001 NTEP Tall Fescue Test – 2005 Results PDF
2003 NTEP Bentgrass (Fairway/Tee) Test – 2005 Results PDF
2003 National Turfgrass Evaluation Program: Bentgrass Putting Green Turf Cultivar Evaluation. PDF
2003 NTEP Fineleaf Fescue Test – 2005 Results PDF
2004 NTEP Perennial Ryegrass Test – 2005 Results PDF
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Management Studies

 
Growth and Physiological Reponses of Creeping Bentgrass to Saturated Soil PDF
Establishment Rates of Zoysiagrass Cultivars - 2005 PDF
Using Digital Image Analysis to Quantify Turfgrass Cover and Disease PDF
Winter Survival of Zoysiagrass Cultivars (2004-2005) PDF
Evaluation of Traditional and Novel Species for Reducing Sediment Loss in North Central Indiana PDF
Nitrogen Fertilization Effects on Three Lawn Species in Indiana PDF
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Integrated Pest Management

 
MON 44951 Rate and Timing for Control of Tall Fescue in Kentucky Bluegrass PDF
Comparison of Spring Application Timings of Broadleaf Herbicides in Cool Season Turf PDF
Poa annua Control on Greens with Fall Application of Ronstar PDF
Gallery 75DF in Conjunction with Hydroseeding PDF
Turf Tolerance of QuickSilver MAS as Compared to QuickSilver EW PDF
Yellow Nutsedge Control with MON44951 in Cool-Season Turf With Two Spray Volumes PDF
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ETQ Kentucky Bluegrass Spring Mitigation in Golf Course and Commercial Turf PDF
Herbicides for Controlling Kentucky Bluegrass with Spray-to-Wet Applications PDF
ETQ Kentucky Bluegrass Fall Mitigation in Golf Course and Commercial Turf PDF
Mesotrione for selective removal of Creeping Bentgrass from Kentucky bluegrass PDF
Mesotrione for selective removal of Creeping Bentgrass from Kentucky bluegrass PDF
Yellow Nutsedge Control with Mesotrione in Cool-Season Turf PDF
Control of Dallisgrass with Mesotrione PDF
Post-emergent Control of Broadleaf Weeds with Mesotrione in the Spring PDF
Preemergent Crabgrass Control with Commercially Available and Experimental Herbicides PDF
Fall Broadleaf Herbicide Trial PDF
Creeping Bentgrass Control with Fall Applications of MON 44951 PDF
MON 44951 Screen on Various Poa trivialis Cultivars PDF
Broadleaf Weed Control in Cool Season Turf with MON 44951 75WDG PDF
Evaluation of Glyphosate Formulations for Control of White Clover PDF
Overseeding Creeping Bentgrass Before or After Application of MON44951 PDF
Overseeding Creeping Bentgrass Following Summer-Applied MON 44951 PDF
Long-term Poa annua Control Strategies with Mesotrione and Dimension PDF
Evaluation of Long Term Tolerance of Roundup Ready Creeping Bentgrass to Roundup PRO PDF
Interactions between trinexapac-ethyl and fungicides for control of dollar spot on creeping bentgrass PDF
Evaluation of Fungicides for Control of Dollar Spot on Creeping Bentgrass Fairways PDF
Evaluation of fungicides for control of gray leaf spot of perennial ryegrass PDF
Soluble Concentrate Formulations of Bifenthrin (Talstar) and Spinosad (Conserve) for Curative Control of Black Cutworm Larvae in Creeping Bentgrass Turf, 2005 PDF
Soluble Concentrate Formulations of Bifenthrin (Talstar) and Spinosad (Conserve) for Curative Control of Fall Armyworm Larvae in Kentucky Bluegrass Turf, 2005 PDF
Efficacy of Liquid and Granular Insecticides for Curative Control of Sod Webworm Larvae in Creeping Bentgrass Turf, 2005 PDF
Soluble Concentrate Formulations of Bifenthrin (Talstar) and Spinosad (Conserve) for Curative Control of Sod Webworm Larvae in Creeping Bentgrass Turf, 2005 PDF
   
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Send corrections, suggestions, and comments to biehlj@purdue.edu


Department of Agronomy, Turf Program
915 W. State Street, West Lafayette, IN 47907
765-494-8039

Send corrections, suggestions, and comments to biehlj@purdue.edu