Tuesday, July 27, 2021


The latest on the PRO Act, which could bring major changes to labor law, especially in "right-to-work" states; and COVID spikes result in new mandates.


Travel restrictions are extended as Delta variant surges; some public-sector employers will mandate vaccines; President Biden says long-haul COVID could be considered a disability; and western wildfires rage.

New Lawn Herbicide Kills Weeds - Investigated For Also Damaging Trees


Monday, August 1, 2011   

WEST LAFAYETTE, Ind. - Golf courses and homeowners in at least 22 states have reported their conifer trees turning brown this summer, and it appears a new broadleaf herbicide may be the culprit. Tom Creswell, director of the Purdue University Plant and Pest Diagnostic Laboratory, says Dupont's Imprelis herbicide is the common denominator.

"In June and late May, we started seeing symptoms of injury on conifers, particularly Norway spruce and white pine, showing up where Imprelis had been applied."

The laboratory's online guide indicates injury to trees can be dramatic, but trees can often recover over time. The guide says Norway spruce appears to be the species most susceptible to this herbicide, and the most likely to die.

Creswell suggests that people who have tree damage contact their lawn care professional to determine if Imprelis was used. Homeowners should get on the phone if they see tree damage, he adds.

"The first thing they should do is contact their lawn care operator and find out if Imprelis has in fact been used. If that's the case, the lawn care operator would probably want to come back out and take a look at the lawn."

Creswell says golf course operators and homeowners with tree damage have another good resource, too.

"If you live in Indiana, there's always the option of contacting the office of the Indiana State Chemist to ask for an investigation to begin about it."

Dupont's website says the company plans to have a toll-free number set up for Imprelis questions by Aug. 1.

Information is available from the Purdue University Plant and Pest Diagnostic Lab, http://ppdl.purdue.edu/PPDL, and the office of the Indiana State Chemist, http://www.isco.purdue.edu.

get more stories like this via email

Smoke from the Bootleg fire in southern Oregon is blowing across Idaho and as far east as New York. (National Interagency Fire Center/Flickr)


BOISE, Idaho -- Wildfires are affecting air quality across the West, bringing hidden dangers in smoke that can harm people's health. The Boise-based …

Social Issues

DENVER -- The days of exponentially high increases in health-insurance costs may finally be in the rearview mirror. The Colorado Division of …

Social Issues

DES MOINES, Iowa -- Cultural institutions in the U.S. are facing scrutiny to be more accessible and inclusive. The organization in charge of Iowa's …

Electrifying heat pumps are key to lowering the carbon cost of buildings. (SkyLine/Adobe Stock)


BELLINGHAM, Wash. -- Last month's deadly heat wave in the Northwest underscored the need to reduce carbon emissions, but advocates want to ensure low-…

Social Issues

MINOT, N.D. -- Many arguments are being floated about legislation before Congress that would bring big changes to U.S. labor laws. The bill has its …

Studies show Medicaid expansion could reduce costs for Missouri's health-care system as a whole, by getting more patients preventive care, which is less expensive than emergency care. (torwaiphoto/Adobe Stock)

Health and Wellness

JEFFERSON CITY, Mo. -- Health-care advocates called on Missouri lawmakers to allocate funds for Medicaid expansion right away, after the state …

Social Issues

AUGUSTA, Maine -- School meals in Maine will be free for all students again this year and into the future, but parents are being urged to fill out …


CHARLESTON, W.Va. -- A report outlines how federal efforts to bring solar energy to one in four American households could bring clean energy to …


Phone: 303.448.9105 Toll Free: 888.891.9416 Fax: 208.247.1830 Your trusted member and audience-supported news source since 1996 Copyright 2021