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Last updated 6/3/03



2002 Annual Report

Purdue University Turfgrass Science Program


In this book, you may see pesticide use in research reports that do not conform to the pesticide label. These uses are not provided as recommendations. It is the responsibility of the pesticide applicator, by law, 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 2002 PDF
Overview of the Turfgrass Science Program PDF


Cultivar and Species Evaluations

1998 NTEP Creeping Bentgrass Cultivar Test (Fairway) - 2002 Results PDF
1998 NTEP Fine-leafed Fescue Cultivar Test (Lawn) - 2002 Results PDF
1999 NTEP Perennial Ryegrass Cultivar Test (Lawn) - 2002 Results PDF
2000 NTEP Kentucky Bluegrass Cultivar Test (Lawn) - 2002 Results PDF
2001 NTEP Tall Fescue Cultivar Test (Lawn) - 2002 Results PDF
2002 NTEP Zoysiagrass Test - 2002 Results PDF
2002 NTEP Bermudagrass Test - 2002 Results PDF


Management Studies

Water Quality Management on Purdue's Kampen Golf Course PDF
Defining Optimum Seeding Rate for Bermudagrass and Zoysiagrass PDF
Turf Conversion Using Seeded Zoysia and Bermuda Without Nonselective Herbicides PDF
Large Scale Fairway Conversion Using Seeded Zoysiagrass PDF
Herbicide Safety on Zoysia Seedlings - 2002 PDF
Safety of Dimension 1EC on Seedling Creeping Bentgrass or Tall Fescue - 2001 and 2002 Results PDF
Effects of Dimension 1EC on Creeping Bentgrass Establishment and Poa annua Competition During Fall Fairway Renovation PDF


Integrated Pest Management

RRCB Control Alternatives Screening Trial with Current Standards and Additional Candidates PDF
Fluroxypyr/Triclopyr as a Confront Replacement PDF
Safety of Eagle Fungicide on Creeping Bentgrass PDF
Evaluation of Nonselective Liquid Fastburn Formulations PDF
Carfentrazone Efficacy on Ground Ivy and Canada Thistle in Cool-Season Turfgrass PDF
Tolerance of Cool-Season Turfgrass to Carfentrazone PDF
Evaluation of MON 44951 75WDG and Other Herbicides Applied Spring to Summer for Poa trivialis Control PDF
Evaluation of MON 44951 75WDG and Other Potential Poa trivialis Herbicides Applied Spring to Summer for Safety to Creeping Bentgrass PDF
Control of Crabgrass with Preemergence Herbicides - 2002 PDF
Cultural and Chemical Control of Ground Ivy PDF
Ground Ivy Population Respond Differently to 2,4-D or Triclopyr PDF
2,4-D Rate Response, Absorption, and Translocation of Two Ground Ivy Populations PDF
Epidemiology of Gray Leaf Spot of Perennial Ryegrass PDF
Survey of Sclerotinia homoeocarpa Isolates in Indiana for Sensitivity to Three Fungicides PDF
Evaluation of Fungicides for Control of Dollar Spot on Creeping Bentgrass - 2002 PDF
Japanese Beetle Flight Activity PDF
Purdue University Personnel Affiliated with the Turfgrass Program in 2002 PDF


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Department of Agronomy, Turf Program
915 W. State Street, West Lafayette, IN 47907

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