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Atrazine Human Health Risk Assessment Now Available for Public Comment

Today, the Environmental Protection Agency is releasing the atrazine draft human health risk assessment for public comment. The assessment identifies potential risks to children who crawl and play on lawns sprayed with atrazine and to workers who apply atrazine and/or enter treated fields after application.

Atrazine is one of the most widely used agricultural pesticides in the United States. It is used to control broadleaf and grassy weeds on corn, sorghum, and sugarcane, and to a lesser extent on residential lawns and golf courses. In the assessment, EPA reviewed all available scientific data, including published toxicity and epidemiology literature. The assessment uses multiple lines of evidence and methodologies that reflect current science. Continue reading

New app from University of Missouri identifies herbicide injury

In Delta Farm Press

University of Missouri Extension introduced a new mobile app to identify herbicide injury at its annual Pest Management Field Day on July 10.

MU Extension weed specialist Mandy Bish says Herbicide Injury ID lets users send photos of injured plants to MU Extension for preliminary diagnosis and feedback. Users can also scroll through a library of more than 200 photos to look for similar types of damage.

Read the rest of the story in Delta Farm Press.

May 3 webinar to focus on mesquite, mixed brush herbicide treatments

by Kay Ledbetter, Texas A&M AgriLife

Mesquite and Mixed Brush Herbicide Treatments will be the topic of the May 3 natural resources webinar conducted by the Texas A&M AgriLife Extension Service ecosystem science and management unit.

The webinar is part of the Texas Range Webinar Series scheduled the first Thursday of each month from noon to 1 p.m., said Pete Flores, AgriLife Extension webinar coordinator in Corpus Christi. Continue reading

UGA Extension study shows impact of herbicides on pecan trees

By Clint Thompson, University of Georgia

Dicamba and 2,4-D herbicides, sprayed directly on trees at full rates, kill the plant material they touch, but they don’t travel through the tree or linger from year to year, according to a newly released University of Georgia Cooperative Extension pecan study. The study also found that drift from the herbicides does not hurt the trees.

UGA Extension pecan specialist Lenny Wells and UGA Extension weed scientist Eric Prostko researched the effects of low and high concentrations of dicamba and 2,4-D herbicides on pecan trees at the university’s Ponder Farm in Tifton, Georgia. They studied 5-, 8- and 9-year-old ‘Desirable’ pecan trees. No data was collected on older trees. Continue reading

Webinar: Glyphosate, Friend or Foe?

Join the National Association of Exotic Pest Plant Councils for a webinar on Apr 18, 2018 at 3:00 PM EDT.

Register now! Continue reading

Planting time for spring gardens is around the corner, so prep now

Spring gardens may not be as soon for the northern states in the southern region, but the recommendations in this article are applicable to all gardeners.

by Adam Russell, Texas AgriLife

The time is now for East Texas vegetable gardeners to make preparations for planting early varieties and spring garden staples, said a Texas A&M AgriLife Extension Service expert.

Gardeners have some cool-season vegetables planted already and are soon preparing to plant early vegetable varieties, such as onions, said Dr. Joe Masabni, AgriLife Extension small-acreage vegetable specialist, Overton.  Continue reading

Training is required for dicamba use

In Southeast Farm Press

In October 2017, the Environmental Protection Agency approved revised labeling for new formulations of dicamba products that are marketed as Engenia (BASF), Xtendimax (Monsanto), and FeXapan (DuPont).

These new herbicides were developed in conjunction with the release of dicamba-tolerant soybean (Roundup Ready2 Xtend soybean varieties).  All three products, which were first available for applications during the 2017 growing season, are now classified by the EPA as “RESTRICTED USE” pesticides, meaning that either a commercial or private pesticide certification license must be held by individuals who purchase and apply these products. Continue reading