Still time left to sign up for Indiana Green Expo to be held Jan 11-13!

The registration deadline is fast-approaching for the Indiana Green Expo and forms must be postmarked by Dec. 31, 2011. The Indiana Green Expo is the largest turf, ornamental, nursery, and landscape conference in Indiana and is jointly sponsored by the Midwest Regional Turf Foundation and Indiana Nursery and...
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Winter Annual Weeds

Four types of broadleaf weeds exist: 1) perennial (those living more than two years), biennial (those living two years), 3) summer annuals (those germinating in the spring and dying in the fall), and 4) winter annuals (those germinating...
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Imprelis Return and Refund Program

On October 17, DuPont began a process to recall and refund Imprelis from Turf professionals. DuPont has contacted distributors, who will be coordinating with turf professionals to ensure that all remaining full and partially full bottles of Imprelis® are returned. Turf professionals have 10 business days...
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Grass Clippings and Herbicides

I have received a few questions recently regarding the use of grass clippings on lawns treated with herbicides. Here is one of those questions: “Our Master Gardener Association will be working on a project in which they hope to use a great amount of lawn clippings to put down as compost in a large area. ...
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Imprelis Update: DuPont Begins Claims Resolution Process

On September 6, DuPont began a process to fairly resolve claims for impact on trees that DuPont™ Imprelis® herbicide may have caused. Below are links to documents useful to turf professionals who applied Imprelis® last fall or this spring. More information is available at http://www.imprelis-facts.com/...
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Purdue Turf Scientists and Their Work Highlighted in Recent Press Releases

Scientists make turfgrass safer for animals, deadly for insects September 6, 2011 WEST LAFAYETTE, Ind. - The right combination of compounds produced by a beneficial fungus could lead to grasses that require fewer pesticides and are safer for wildlife and grazing animals, according to Purdue University scientists....
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Making Adjustments to Your Fertilizer Program

Although the Purdue University Turf Program publishes information about how to fertilize your turf with nitrogen (N)-based fertilizers including standard rates and timings, there are many factors that influence these rates and timings....
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Fall Fertilization

Cool-season turfgrass species should be fertilized mainly in the autumn. September and November are the two best times to fertilize a lawn in Indiana. Fall nitrogen promotes good root development, enhances storage of energy reserves, and extends color retention in cool-season lawns. Most of the benefits from...
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Staying Dry

Many in central Indiana are coping again with drought a second year (See drought monitor images for Indiana (current and fall of 2010). While many pockets of Indiana have had sufficient moisture in the second half of summer (including...
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Dr. Cale Bigelow Sabbatical

Just a quick note from across the pond. I will be on study-leave/sabbatical for fall semester from 15 Aug. - 31 December, 2011. I will be collaborating with colleagues interested in urban ecology and studying alternative low input turfgrass systems in Europe (primarily the United Kingdom). Please note that during...
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Imprelis® Update: Stop Sale, Use, or Removal Order. Q&A

The following post provides an update on Imprelis® herbicide in a Question and Answer format. Q: What action has the Office of Indiana State Chemist (OISC) recently taken concerning Imprelis®? A: The OISC issued a stop sale, use, or removal order (SSURO) on August 1, 2011 for the herbicide Imprelis®. The OISC...
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Turf: Dead or Alive?

Many areas in Indiana have received recent rains to their lawns. Some lawns have greened-up and others are still brown leaving many wondering whether their lawns are dead or alive. Below are some images that illustrate the process of...
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Certainty Turf Herbicide Label Changes

Monsanto recently updated the Certainty® Turf Herbicide label 2011-1 on packaged goods. These changes are effective on product packaged and shipped after May 2011. All cool season turfgrass uses for Certainty have been removed from the 2011-1 label. The product can still be used on warm-season turf. The label...
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DuPont launches www.imprelis-facts.com Website

This week DuPont launched a new website designed to help answer questions from those who have used Imprelis® and are seeing injury to trees. The website, www.imprelis-facts.com, states the following: "As a precaution until we are able to more fully understand the circumstances surrounding reports of tree damage...
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Water Restrictions and Managing Turf During Drought

For those in the Indianapolis area, customers of the Department of Waterworks – City of Indianapolis are “asking residential and business customers to not water lawns through Friday, July 29 in the wake of continued lack of rain, high...
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Imprelis UPDATE and INFORMATION

Many Indiana turf professionals who used the herbicide Imprelis® in the fall of 2010 or spring of 2011 and now are reporting off-target damage to trees and ornamentals in the landscape. Additionally, many homeowners have read an article or seen a news story about a Imprelis®. Below are links for homeowners and...
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Turf disease watch

A new posting has been added to Turfcast. See Turfcast (http://btny.agriculture.purdue.edu/turfcast/ ) to read more about this post and for a daily summary of risk for several turfgrass diseases. Rick Latin, Turfgrass Patholog...
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The Heat is On!

Extreme heat is stressing turf areas quickly! High temperatures cause turf decline There are many causes of turf decline in the summer, but three primary physiological causes are 1) low photosynthesis rates at high temperatures, 2)...
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