Michigan: Status of Herbicide-Resistant Weeds in 2021

In 2020, 19 samples were submitted for herbicide resistance screening to MSU Plant & Pest Diagnostics. The majority of these samples were sponsored by the...

Herbicide Drift: Cellulosic Nanomaterial Could Help Solve the Problem

Joseph Batta-Mpouma and Gurshagan Kandhola found a tiny solution to a big problem. Batta-Mpouma says up to 70 million pounds of herbicides are lost to...

Pennsylvania: Herbicide Options for Controlling a Failed Corn Crop

With a spring like this, we are starting to get questions about poor corn emergence and replanting issues. There are times when corn (previously...

Weed Management: Drought Impact on Soil-Applied Herbicides

The weather is beautiful, and planting is in full throttle. However, due to the lack of rainfall, soil-applied herbicides have not been or will...

Fed Watchdog Slams EPA on Dicamba – DTN

Senior EPA officials deliberately mishandled the agency's 2018 registration decision for three dicamba herbicides -- FeXapan, XtendiMax, and Engenia -- according to the agency's...

Sentris and Glyphosate Tank-Mix Compatibility Problems

We’ve had several reports of applicators experiencing issues when tank-mixing products with Engenia and the new volatility reducing agent (VRA) from BASF, Sentris. Applicators...

Arkansas: Dicamba Rule Changes and Recommendations

On May 3rd, 2021, the Arkansas State Plant Board (ASPB) met and voted to alter the 2021 rules for over-the-top use of dicamba in...

Arkansas Peanuts: Section 18 Approved for Brake Herbicide

A Section 18 Emergency Use Exemption label for Brake (fluridone) herbicide has been approved by EPA for applications from 14 days pre-plant to 36...

Ohio: Adapting Burndown Programs to Late-Planted Situations

It’s déjà vu all over again.  We have run this article every few years, and it seems like maybe the frequency is increasing as...

Corn Growth Stages and Postemergence Herbicides – Size IS Important

The labels of most postemergence corn herbicides allow applications at various crop growth stages, but almost all product labels indicate a maximum growth stage...

Mississippi Soybeans: Postemergence Dicamba Applications in Xtend Crops – Podcast

Trent Irby visits the Crop Doctors’ Podcast studio in Stoneville to discuss requirements for dicamba applications in Xtend soybean. Topics include application cutoff dates, tank...

Indiana Soybeans: Preemergence Herbicides and Seedling Injury

Favorable weather and soil conditions for planting during the last two weeks of April allowed many growers to get their soybeans planted relatively early...

Indiana Corn: Control Of “Volunteer” Corn in a Replant Situation

Due to the recent cold wet weather, corn planted in April has either struggled to emerge or the corn that did emerge may have...

Mixing Order of Pesticides Is Important

This is a friendly reminder to all young and old extension agents that the tank-mixing order/sequence of pesticides is very important.  I discussed this...

Iowa: Adjusting Weed Management Plans After The Dry Start

Performance of preemergence herbicides in many areas of the state may be less effective than normal due to limited rain following application. Although weed emergence following...

Minnesota: Dry Weather and Weed Management – Good or Bad?

Planting has progressed rapidly this spring given the favorable planting conditions across much of Minnesota. The week of May 10th is still forecasted to...

Liberty Herbicide: A Refresher for Maximizing Efficacy – DTN

Glufosinate herbicides, often sold under the Liberty brand, are in higher demand than ever before. This year, nearly every herbicide-tolerant soybean trait on the market...

Arkansas Rice: Ryegrass Control Is Important Before Emergence

Ouch (Fig. 4).  We’ve received a ton of phone calls and pictures on Italian/annual ryegrass this spring.  It’s easily moved into our top 5...

10 Ways to Reduce Spray Drift

The importance of keeping crop protectant applications on target continues to be at the forefront of growers' minds as well as people neighboring the...

Pennsylvania Corn, Soybeans: Flexible Herbicides If You Need to Switch Crops

With variable spring weather, delays in planting and herbicide application in some parts of the state may occur. Because of this, you might want...