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Last updated 3/19/2007

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B-18082

2006 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:

PDFSupporters of the Purdue University Turf Program in 2006 PDF

Cultivar and Species Evaluations

 
Olsen Seed Perennial Ryegrass Cultivar Trial PDF
Causes of Differential Growth among Zoysiagrass Cultivars PDF
Freeze tolerance of zoysiagrass cultivars - Pilot Study PDF
Specifications on building a cold stress simulator PDF
Freeze tolerance of zoysiagrass cultivars PDF
Physiological Basis for Differences in Zoysiagrass Freeze Tolerance PDF
   

Management Studies

 
Evaluation of Various Sand Topdressing Practices on Three Creeping Bentgrass Cultivars Maintained Under Two Fertility Levels on a Research Golf Green PDF
Mowing height impacts establishment rate of zoysiagrass cultivars PDF
Annual bluegrass seedhead suppression in two contrasting golf turf areas as affected by Proxy, a Proxy + Primo Maxx tank-mix and Embark Lite applications PDF
Survey of Home Lawn Soil Phosphorus Levels in Tippecanoe County Indiana PDF
Evaluation of various urea-based nitrogen sources for their effect on creeping bentgrass and Kentucky bluegrass color PDF
Evaluation of various foliarly applied fertilizer sources for golf course putting greens PDF
Evaluation of various soil surfactants for creeping bentgrass sand-based putting green management PDF
Evaluation of various soil surfactants for creeping bentgrass summer fairway management PDF
Annual Bluegrass Control in a Creeping Bentgrass Fairway Using Cutless 50W, Primo MAXX 1EC and Various Tank-mix Combinations PDF
Above Ground Responses of Three Cool-Season Lawn Species to Varying Annual Nitrogen Rates and Application Timings PDF
Evaluation of Traditional and Novel Species for Reducing Sediment Loss in North Central Indiana PDF
   

Integrated Pest Management

 
Effect of season-long fungicide programs on survival of Poa trivialis PDF
Effects of trinexapac ethyl and fungicides on growth of creeping bentgrass PDF
Effect of Certainty and Velocity on cultivars of Poa trivialis PDF
Effect of Velocity and Certainty on short-term control of Poa trivialis PDF
Velocity and Certainty Combined With Overseeding Creeping Bentgrass for Conversion on Fairways PDF
Creeping Bentgrass Control with Fall Applications of Mesotrione or Certainty PDF
2006 Crabgrass Control: Preemergence Herbicides Applied Prior to Emergence or Postemergence Herbicides Applied at 1-2 Tiller Stage PDF
2006 Crabgrass Control: Preemergence Herbicides Applied Prior to Emergence or Postemergence Herbicides Applied at 1-2 Tiller Stage PDF
Control of 1- to 2- Leaf Crabgrass PDF
NA06B2A001 Spotlight herbicide demonstration in university COI trials PDF
2006 Crabgrass Control: Preemergence Herbicides Applied Prior to Emergence or Postemergence Herbicides Applied at 1-2 Tiller Stage PDF
Broadleaf weed control with fall applications of Certainty in cool season turf PDF
Broadleaf weed control with late fall applications of Certainty herbicide PDF
Tall fescue control in Kentucky bluegrass with Certainty herbicide PDF
Poa trivialis control in creeping bentgrass with Certainty herbicide PDF
Poa trivialis control in Kentucky Bluegrass with Certainty herbicide PDF
Control of 1- to 2- Leaf Crabgrass PDF
Timing and Rate of Mesotrione Applications for Fall Bentgrass Control PDF
Safety of Mesotrione 4SC on Kentucky Bluegrass Cultivars PDF
Highlights of Mesotrione Research at Purdue PDF
Mestrione 4SC Safety when Applied at Seeding and Newly-Emerged Fine Fescue PDF
Mestrione 4SC Safety when Applied at Seeding and Newly-Emerged Kentucky Bluegrass PDF
Mesotrione 4SC safety to perennial ryegrass when applied to seeding and newly emerged turf PDF
Mesotrione 4SC Safety to Turf-type Tall Fescue when Applied to Seeding and Newly Emerged Turf PDF
Application of Provaunt and Talstar for Black Cutworm Curative Control in Creeping Bentgrass PDF
Post-Application Irrigation and the Curative Efficacy of Allectus, Merit and Arena on Billbug Larvae in Kentucky Bluegrass Turf PDF

Curative Efficacy of Provaunt, Talstar and Conserve Against Sod Webworm Larvae in Creeping Bentgrasss Turf

PDF
Application Timing and Efficacy of Imidacloprid Against Masked Chafer Larvae in Turfgrass PDF
Exploiting genetic resistance to control dollar spot control on creeping bentgrass with less fungicide PDF
Costs and benefits associated with fungicide programs that vary by application rate and interval for dollar spot control on creeping bentgrass PDF

 


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