Imprelis Herbicide Injury: 2011 PPDL ‘Host’ List


We have received questions pertaining to susceptibility of plants to Imprelis. We do not have a list of "susceptible vs. not susceptible" plants because we do not know exactly which plants might be affected under certain growing conditions. However, based on our experience in the PPDL this past summer the list below contains the names of plants on which we saw symptoms of herbicide injury when Imprelis was reported to have been applied on the property. There is no certainty that all of the damage observed on these plants listed below was actually caused by Imprelis. Confirmation of Imprelis injury will depend on the residue analysis and final reports provided by the Office of Indiana State Chemist (OISC). An asterisk (*) next to the plants listed below indicates that Imprelis residue was confirmed in host tissue by the OISC. In a few cases we also saw herbicide injury symptoms on annuals (tomato) and perennials but those have been omitted from this list.

Conifers
Arborvitae*
Bird’s nest Spruce*
Bald cypress*
Colorado blue spruce*
Concolor fir
Dawn redwood
Douglas fir
Eastern white pine*
Fraser fir
Juniper
Norway spruce*
Yew

Deciduous trees or shrubs
Alder
Amelanchier
Boxwood
Callery Pear
Cottonwood
Euonymus
Ginkgo*
Hibiscus*
Honeylocust*
Lilacs
Maple*
Mulberry
Paulownia*
Paw Paw
Privet*
Redbud
River birch
Rose of Sharon
Sycamore
Tulip Poplar
Viburnum
Willow

Gail Ruhl, Sr. Plant Disease Diagnostician, Plant and Pest Diagnostic Lab, Purdue University, West Lafayette IN 47907-2054

Check out the original post of this article including many other images at: http://www.ppdl.purdue.edu/PPDL/weeklypics/1-17-12.html


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Purdue Students Place 1st at the Eighth Annual Sports Turf Competition

For the second year in a row the Purdue Turf Program has placed 1st in the Student Challenge Exam during the Sports Turf Managers Association (STMA) Meetings held January 10-14, 2012. Eight students traveled out to Long Beach, CA for the eighth annual Student Challenge Exam at the STMA Meetings. The four person team of Zak Peterson, John Thackery, Ben Baumer, and Joey Gerking placed 1st and Purdue’s second team, Steve Vonderheide, Cameron Cox, Zachary Ferguson, and Tyler Macali placed 17th out of 24 teams. Teams from various colleges and universities participated in a written exam on sports turf and sports field topics. The two hour competition included the identification of insects, grasses, and weeds and covered mathematics, soil physical properties, plant physiology, and plant growth and development in addition to questions on athletic field construction, design and maintenance. At the conference, students were able to take advantage of many activities including the student challenge exam, workshops and a student network luncheon.

The STMA is rich with Purdue University tradition as the late Dr. Bill Daniel, long-time Purdue professor and a pioneer in the turf industry, was one of the four founding members. Dr. Daniel is honored each year by an award in his name that honors individuals who have significantly contributed to the sports turf industry through research, teaching and extension.

The teams would like to acknowledge the support they received this year from the Midwest Regional Turf Foundation (MRTF), Agronomy Department, their advisor Dr. Cale Bigelow and graduate teaching assistant, Tracy Tudor. Without Dr. Bigelow, Tracy Tudor, MRTF and the help of the Agronomy Department the students would not be able to compete in the STMA competition.
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Purdue Turf Scholarship Winners



The Purdue Turf Program granted over $15,000 in scholarship funds to nineteen students. These students have shown high academic achievement, outstanding character and a desire to be in the Turfgrass Industry. Congratulations to all of the Purdue Turf students that received scholarships.




Chad Melton, Don Fassnacht Scholarship

C.J. Coy, Jean and Lee Schmidt Scholarship

Cameron Cox, Max Slack Scholarship

John Daniels, W.H. Daniel Graduate Scholarship

Zach Ferguson, W.H. Daniel Undergraduate Scholarship

Tony Feitz, Michiana Golf Course Superintendents Association

TJ Mueller, Hoosier Golf Course Superintendents Association

John Thackery, MRTF Golf Day Scholarship (presented by Syngenta)

Dane Alexander, MRTF Scholarship

Ben Baumer, MRTF Scholarship

Lucas Braun, MRTF Scholarship

Tony Feitz, MRTF Scholarship

Dan Kiermaier, MRTF Scholarship

Aaron Kreider, MRTF Scholarship

Brock Miller, MRTF Scholarship

Zac Peterson, MRTF Scholarship

Quin Stilwell, MRTF Scholarship

Clayton Walters, MRTF Scholarship

Peter Westfall, MRTF Scholarship

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Successful Indiana Green Expo

Last week (January 11-13, 2012) the Purdue Turf Program and the Midwest Regional Turf Foundation hosted the Indiana Green Expo (IGE) in cooperation with the Indiana Nursery and Landscape Association. The IGE is Indiana's most comprehensive green industry educational conference and trade show. It is a time of education, new products and networking with industry members. The IGE featured 90 exhibiting companies from around the country. The 1,700 attendees from Indiana and the surrounding states come from a variety of backgrounds including business owners, managers and staff of wholesale and retail nurseries, landscape management firms, greenhouse growers, golf course superintendents and staff, grounds maintenance departments, landscape design and installation firms, garden centers, consulting firms, educational institutions, suppliers and more! This year’s conference provided education with eight concurrent sessions featuring 60 different speakers including Purdue faculty/staff from Agriculture Economics, Agronomy, Botany and Plant Pathology, Entomology, Horticulture and Landscape Architecture, and Forestry and Natural Resources. The conference was a success again this year and continues to provide information and education among the Midwest turf professionals and the green industry. Mark your calendars for next year’s IGE, January 9-11, 2013.
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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 Landscape Association. Over sixty experts from across the country are giving over 100 talks on all aspects of the green industry and a tradeshow packed into two days provides an efficient and cost-effective opportunity for educating your whole staff, regardless of what area of the Green Industry where you work. Plus there are huge discounts for bringing more than two employees. Indiana, Michigan, Ohio and Kentucky CCH’s, GCSAA education credits, and IAH certification units are all available. Full information as well as on-line registration is available at http://www.indianagreenexpo.com/



Contact Jennifer Biehl with any questions.
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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 in the fall and surviving the winter and dying the following spring). Since many of these winter annual weeds are now germinated, I thought it might be a useful exercise to review their identification. Below is one picture of various winter annual broadleaf weeds. Be on the lookout for these this fall and next spring.

Annual bluegrass


Catchweed bedstraw


Common chickweed


Corn Speedwell


Henbit


Prickly lettuce


Purple deadnettle


Sheperd’s purse



Aaron Patton, Turfgrass Extension Specialist



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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 to return all Imprelis® product (4.5 fl. oz., 1.0 gallon, and 2.5 gallon bottles) to them after the initial contact from the distributor. After returning the remaining Imprelis® to the distributor, turf professionals will be given either a refund or credits, depending on the distributor’s policy. In this EPA approved disposition plan, the EPA suggests that you maintain records associated with Imprelis®, including but not limited to: 1) quantities used and returned, including product lot numbers 2) application records, and 3) purchase records.


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/ and at (866) 796-4783.



Information From DuPont:

Imprelis Status Mailer to Users & Dealers (September 20, 2011)

DuPont Imprelis return & refund letter to applicators (October 17, 2011)

DuPont Imprelis return & refund letter to distributors (October 17, 2011)

DuPont Imprelis instructions for return & refund (October 17, 2011)


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