Agronomy Talk

10

Nov

2020

WEED MANAGEMENT BRIEF: Enlist Carrier Rate

Author: Joe Bolte

Enlist One® or Enlist Duo® 2,4-D choline are both very effective on glyphosate-resistant (GR) marestail, giant ragweed, and waterhemp. Just like glyphosate, Enlist One is a systemic herbicide, meaning coverage is not as crucial as it is with a contact herbicide. One approved tank-mix partner for Enlist One is Liberty®. The addition of Liberty provides two effective SOAs for GR marestail, giant ragweed, and waterhemp. When spraying Liberty alone, Beck’s Practical Farm Research (PFR)® data has shown a 12% increase in control when using a carrier volume of 20 GPA vs. 15 GPA.

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4

Nov

2020

WEED MANAGEMENT BRIEF: ENLIST — POST-EMERGENCE

Author: Joe Bolte

Enlist One® + Liberty® is very effective when it comes to glyphosate-resistant (GR) broadleaf weeds, especially in high-pressure scenarios. However, there may be other weeds, like grasses, that you are trying to control.

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4

Nov

2020

Agronomy Talk: SOYBEAN RUST

Author: Shane Carver

Soybean rust, (Phakopsora pachyrhizi), a serious disease of soybean and other legumes, was first discovered in the continental U.S. (Louisiana) in 2004. This disease has been reported to cause upwards of 80 percent yield loss when present under optimal, conducive conditions. Current soybean varieties grown have little to no resistance to soybean rust, thus making proper identification and management decisions even more crucial, as we begin/continue harvest in our area.

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2

Nov

2020

WEED MANAGEMENT BRIEF: ENLIST WEED CONTROL SYSTEM

Author: Joe Bolte

Beck’s Practical Farm Research (PFR)® data has shown Enlist One® + Liberty® resulted in very effective control of glyphosate-resistant (GR) waterhemp and marestail.

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29

Oct

2020

WEED MANAGEMENT BRIEF: LIBERTY AND TIME OF DAY

Author: Joe Bolte

What is the best time of day to make Liberty applications? 

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23

Oct

2020

WEED MANAGEMENT BRIEF: IMPORTANCE OF AMS WITH LIBERTY® AND GLYPHOSATE APPLICATIONS

Author: Joe Bolte

Liberty® and glyphosate are considered to be weak acid herbicides. Water hardness will greatly influence the performance of a weak acid herbicide. Much of the spray water many applicators use comes from wells and is considered to be “hard water.”

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20

Oct

2020

WEED MANAGEMENT BRIEF: INFLUENCE OF WEED SIZE ON LIBERTY APPLICATIONS

Author: Joe Bolte

Contact products like Liberty® require proper coverage to achieve successful weed control. One factor that will influence coverage is the carrier rate. Beck’s Practical Farm Research (PFR)® data shows a 12% increase in waterhemp control when Liberty is sprayed at 20 GPA vs. 15 GPA. Contact herbicides do not move in the plant like a systemic herbicide such as glyphosate does. Therefore, control will be heavily impacted if a contact herbicide does not cover the entire plant.

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15

Oct

2020

Weed Management Brief: CARRIER RATE - LIBERTY + GLYPHOSATE

Author: Joe Bolte

Glyphosate is effective on many of the same weeds on which Liberty is weaker, like grasses, velvetleaf, etc. Therefore, manage a Liberty + glyphosate application just like Liberty alone, since the Liberty is doing the heavy lifting.

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15

Oct

2020

Weed Management Brief: Carrier Rate - Liberty

Author: Joe Bolte

Contact products like Liberty® require thorough coverage due to lack of herbicide movement in the plant. This means that the herbicide must come in contact with the plant tissue in order to achieve control. Systemic products such as glyphosate can translocate throughout the plant, making coverage not as crucial.

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12

Oct

2020

Weed Management Brief: ALTERNATIVE SOLUTIONS — ROW WIDTH

Author: Joe Bolte

Canopy closure is one of the best defenses to prevent the germination of weeds. The competition from canopy closure will reduce the amount of light, making it much harder for weeds to germinate. When applying a pre-emerge herbicide, followed by an in-season residual, the goal is for the blanket of protection to last until canopy closure. Therefore, it is critical for the residual herbicide to last until canopy closure, which may not occur on wider rows. Beck’s Practical Farm Research (PFR)® data shows narrow rows can help reduce waterhemp pressure in the untreated check.

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7

Oct

2020

Weed Management Brief: Alternative Solutions - Tillage

Author: Joe Bolte

Do you face the same challenging weeds you faced 20 or 30 years ago? In the past 30 years, farmers have adopted more soil conservation practices such as no-till and shallower tillage methods. This shift in tillage practices will impact the weed species in your fields.

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5

Oct

2020

WEED MANAGEMENT BRIEF: Alternative solutions - Cover Crops

Author: Joe Bolte

Cover crops not only play an important role in soil heath, but also in weed control. Cover crops can reduce selection pressure on current, effective herbicide options, and they can also suppress weeds due to the large amounts of biomass they produce. Similar to canopy coverage, biomass will shade the soil and reduce weed emergence.

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30

Sep

2020

WEED MANAGEMENT BRIEF: WINTER ANNUAL ID AND WEED CONTROL

Author: Joe Bolte

WHAT IS A WINTER ANNUAL?

Winter annuals will germinate in the fall, overwinter, and produce seed in early spring and summer. Common examples include marestail, henbit, purple deadnettle, prickly lettuce, common chickweed, shepherd’s purse, pennycress, etc. Most winter annuals will overwinter as a rosette and bolt in the spring, producing seed in early summer. However, marestail can have extended germination which can result in additional flushes of weeds in the spring and even early summer.

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23

Sep

2020

Weed Management Brief: MARESTAIL BURNDOWN

Author: Joe Bolte

One of the first steps to a successful herbicide program is starting clean to allow the pre-emerge herbicide to reach the soil surface. The burndown also allows the opportunity to utilize other “effective” SOAs that can’t be used in-season such as Gramoxone® SL 2.0. Spraying early in the spring provides the opportunity to control winter annuals like marestail as well as emerging summer annuals such as giant ragweed.

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21

Sep

2020

WEED MANAGEMENT BRIEF: POWER OF IN-SEASON RESIDUALS

Author: Joe Bolte

Beck’s Practical Farm Research (PFR)® data shows the importance of using pre-emerge herbicides with multiple effective SOAs in order to lay the foundation for a successful herbicide program. The question is whether the pre-emerge herbicide will last until canopy closure. Once we reach canopy closure, the limited light makes it difficult for new flushes of weeds to emerge.

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17

Sep

2020

Weed Management Brief: Power in the Pre

Author: Joe Bolte

Benjamin Franklin once said, “An ounce of prevention is worth a pound of cure.” This quote can be applied to weed management today. Preventing weeds from emerging protects yield.

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10

Sep

2020

MULTIPLE SOAs: THE BEST WEED CONTROL OPTION

Author: Joe Bolte

The easiest weeds to control are those that never emerge. Cliché? Maybe. But as weeds continue to adapt, mounting resistance to herbicides builds every year. Sustainable control has become increasingly more challenging to achieve.

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17

Aug

2020

Weed Management Brief: POWER IN THE PRE™

Author: Joe Bolte

Benjamin Franklin once said, “An ounce of prevention is worth a pound of cure.”

This quote can be applied to weed management today. A successful pre-emerge application lays the foundation for a successful post-emerge application.

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15

Jun

2020

AGRONOMY TALK: Hail Damage

Author: Jon Caspers

With summer heat comes summer storms- and occasionally, hail damage. The impact (no pun intended) of hail on your crop depends on the severity of the initial damage, the growth stage of the crop, and weather conditions as the crop recovers.

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22

May

2020

Agronomy Talk: Delayed Planting Dicamba Management

Author: Joe Bolte

Farmers are itching to get back into the fields after recent rains and to finish soybean planting for 2020. As we start to put planting into road gear, we are focused on finishing the job, but what about the next step in weed management? As planting is delayed, the June 20 cut off for applications of dicamba inches closer for some states in the Midwest.

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