If wet weather has delayed postemergence herbicide application to your soybean fields, there may be some large giant ragweed that needs treating. Mark Loux, Ohio State University, offers tips for herbicide application, depending on resistance levels....More
Now that crops have emerged, farmers are heading back out to the fields to scout for weeds. As you scout, why not let your smartphone do some of the work? Using the Ag Weed ID mobile app, you can ID weeds on the spot using photos and get control tips. ...More
This installment of 5 ag stories to read offers tips on assessing early-planted corn hail damage. Consider global fertilizer outlook and Chinese purchase of soybeans, as well as pesticide use in U.S. agriculture for the past five decades. And, have a little fun with a new soybean meme!...More
The USDA Economic Research Service released finding from a pesticide use study. Over the last five decades, pesticide use on corn, soybeans and other crops, as well as active ingredients, has changed dramatically in U.S. agriculture, including herbicide and insecticide use.
Wet or windy conditions may have kept farmers from applying a preemergence herbicide this spring. However, Bill Johnson and Travis Legleiter, experts from Purdue Extension say that many of these herbicides are still safe for farmers to use after corn has emerged so long as they pay close attention to product selection and application timing....More
Due to late planting, and then wet, cool weather last week, some farmers were unable to apply a pre-emergence herbicide to corn. The University of Nebraska-Lincoln has some tips for applying a residual herbicide after corn emergence, including reminding growers to not apply herbicide with nitrogen, There is also a chart with corn stages, weed growth and the appropriate herbicides to apply....More
Shoulda, coulda, woulda may be the theme if you didn’t use a pre-emerge herbicide, and rain has kept you from returning to spray. That could get to be expensive. In soybeans, you have from 9 to 19 days after soybean emergence before losing yield....More
A recent trial by the University of Minnesota showed that using a preemergence (pre) herbicide in soybeans is beneficial, offering a significant reduction in weed densities early in the season. Weed escapes at the end of the season were nearly eliminated when using a pre herbicide, as well....More
During corn planting and as seedlings start to emerge, corn growers should be on the lookout for the black cutworm moth, says And Michel, Ohio State University Extension pest expert. The migrating moth could cause stand loss. The pest tends to prefer to infest fields with significant ground cover and weed presence, says Michel....More
Geez, the margin for error shrinks constantly, especially with weed resistance. The latest bulletin on this theme relates to Palmer amaranth’s tight control window—before 4 inches high. That gives you about 10 days....More
Monsanto says it will increase its irrigation water-use efficiency by 25% by 2020 in its global seed production operations, saving 30 billion to 80 billion gallons of water annually, says Hugh Grant, Monsanto chairman and chief executive officer....More
Here are five agriculture stories you should check out today. From taking time to tune up equipment and refine weed and nitrogen management to yield gains from on-farm experiments, along with a fun farming parody on YouTube, these are articles you should read (or watch) while you're waiting to get in the field....More
Wet weather and cold temperatures have not only prevented the start of planting, they’ve prevented spring weed control. Ohio State University Extension offers 10 options for weed burndown, particularly in no-till....More
Entomologists say it’s hard to predict insect challenges before a new season. But certain pests are perennial problems that require proactive tactics to limit their impact on yield. Two new tools for farmers in 2014 will help manage the productivity threats from corn rootworms (CRW) and from soybean aphids, beetles and stink bugs....More
Difficult to control weeds – whether due to herbicide resistance or cut rates or too tall weed height/maturity or all of the above – must be taken very seriously and moved to the top of your agronomy to-do list for 2014....More
There's a new weed identification mobile app available for download. The Ag Weed ID app offers an image library, as well as control measures for about 75 of the most common weeds in a variety of crops, including corn and soybeans.
To manage Palmer amaranth weeds, growers must prevent the spread of the seed, or the weed; use multiple herbicide applications to control; and have a zero threshold of plants after control measures....More
Herbicide resistance doesn't develop overnight. By repeatedly applying the same herbicide or herbicides that use the same mode of action, weed resistance pressure increases. Farmers can take a proactive approach to weed management to tackle the weed resistance problem.
Long past are the days of tossing in a little crop oil or surfactant in a spray mix. Selecting the right adjuvant is increasingly important today. However, complex herbicide mixes to fight resistant weeds make proper adjuvant selection a critical part of a successful crop protection program....More
Denny Friest has conducted dozens of trials since 2000, and takes on several new comparisons each year through a program with Iowa Soybean Association. Participating farmers work with researchers to design practical trials. Farmers across the state often conduct trials on similar topics, such as N fertilizer or fungicide performance, which enhances results’ reliability....More
With expanding herbicide and corn-rootworm trait resistance, why let fungicide resistance get a seat at the table? Fungicide resistance in corn has yet to be identified. Checking resistance at the gate makes good agronomic and economic sense....More
Evaluating your farm’s sustainability and seeing how it stacks up against similar operations can be an eye-opener that helps improve a farm’s economic and environmental sustainability, says Shawn Conley, Extension soybean specialist at the University of Wisconsin-Madison....More