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Category Archives: Soybean

23
Apr
2014
Planting Soybean after Leadoff in burndown
Author: Angela McClure, Extension Corn and Soybean Specialist No Comments

We still have miles to go before all of our corn is in the ground, but some folks are turning to planting soybeans this week.  Some acres are behind Leadoff in the burndown program.  Leadoff at 1.5 ounces of product per acre has a 30 day plant back to soybeans.  In most years, 30 days along with some rain is enough time for the material to break down in the soil and not cause injury to soybeans.  In 2013, root and plant stunting were observed in soybeans planted at the correct time following Leadoff and this was attributed to an overall cool wet environment causing slower breakdown of rimsulfuron in the soil.  Symptoms were not seen in STS (sulfonylurea tolerant) varieties planted at the same time.  Bottom line, this spring with cooler and wet soil conditions, expect Leadoff breakdown to be slower and unless varieties are sulfonylurea tolerant there may be some stunting observed in non-STS varieties planted early or inside the 30 day window, particularly in end rows and areas where spray overlap occurred.

 

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15
Apr
2014
Late-Season Burndown Options for Cotton and Soybean
Author: Larry Steckel, Extension Weed Specialist No Comments

A large general rain yesterday and back to winter temperatures this morning keeps field progress in slow motion again this spring.  As soon as the weather permits corn planting will take priority followed by late burndown in some fields. Continue reading

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14
Apr
2014
Automatic Delivery of Our Newsletter
Author: Scott Stewart, IPM Extension Specialist No Comments

From now on you will receive automatic emails about new content on the UTcrops News Blog. This email will arrive each Thursday afternoon if new articles have been published.  You will have subscribe/unsubscribe options Continue reading

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03
Apr
2014
Cover Crop Burndown 2014
Author: Matthew Wiggins, Graduate Research Assistant Comments Off
Cereal Rye - Roundup Powermax 32 oz/a - 14 Days After Application

Cereal Rye – Roundup Powermax 32 oz/a – 14 Days After Application

Spring time is finally here and it is time to consider terminating winter-annual cover crops.  Many people have been questioning the timing of cover crop termination.  Much of West Tennessee has encountered a cool and wet spring, which has limited the biomass accumulated by the cover crops when compared to the last several warmer winter/springs.  So do we delay cover crop termination to get more growth or wait? Continue reading

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01
Apr
2014
How Valuable are Insecticide Seed Treatments?
Author: Scott Stewart, IPM Extension Specialist Comments Off

There has been some reports from various sources suggesting that insecticide seed treatments (IST) have limited value and don’t affect yield.  Some of this is related to the anti-neonicotinoid craze that has become a very political issue.  It is dangerous Continue reading

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21
Mar
2014
New Soybean Rust Videos
Author: Heather Young Kelly, Extension Plant Pathologist Comments Off

Growers will find key information to keep in mind about the ongoing threat of soybean rust and actions they can take to minimize potential losses from this disease in two videos now available online. Continue reading

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11
Mar
2014
Thinking Ahead – Thrips Management in Cotton
Author: Scott Stewart, IPM Extension Specialist 3 Comments

Thrips-cottonIt’s now old news that tobacco thrips in much of the Mid South have apparently developed resistance to thiamethoxam, the insecticide component used in several cotton seed treatments including Cruiser, Avicta Complete, and Acceleron N. Control failures with thiamethoxam were documented in several experiments throughout the Mid South this past season So what does this mean for thrips management in 2014? Continue reading

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10
Mar
2014
Sampling Supplies – Sweep Nets, Southwestern Corn Borer
Author: Scott Stewart, IPM Extension Specialist Comments Off

I get several questions each year about sources for sweep nets and pheromone trapping supplies, especially for southwestern corn borer. We get ours from Great Lakes IPM (http://www.greatlakesipm.com/). I’ve included specific links below, but there are other sources including Gemplers (sweep net and bucket traps) and Forestry Suppliers (for sweep nets).http://news.utcrops.com/wp-includes/js/tinymce/plugins/wordpress/img/trans.gif Continue reading

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10
Mar
2014
Cold Weather Effects on Insect Populations?
Author: Scott Stewart, IPM Extension Specialist 5 Comments

Hey, let’s face it. The reason we have more kinds of bugs in the South is because we have a warmer environment. However, not all insect pests are equally affected. Some are very tolerant of cold weather while others take a hit during a hard winter. Below are some examples. Continue reading

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10
Mar
2014
Burndown Questions
Author: Larry Steckel, Extension Weed Specialist 7 Comments

It finally looks like this long winter is coming to a close.  We will likely start putting out burndown applications this week.  We are well behind the burndown pace of most Tennessee springs where at least some would have burndown applications applied by this time.   However, this was not a typical winter and as such we are not behind with respect to weed maturity. Continue reading

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21
Feb
2014
Mid-South Ag Forum at the Farm and Gin Show
Author: Scott Stewart, IPM Extension Specialist Comments Off

You may want to take time out to attend the Mid-South Ag Forum while at the Farm and Gin Show. The program is Friday, February 28,  1:30 – 3:30 PM.  It will be held on the Mezzanine Level of the Cook Convention Center.  Topics will include … Continue reading

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18
Feb
2014
Dicamba Shortage Burndown Options
Author: Larry Steckel, Extension Weed Specialist Comments Off

From visiting with retailers the past month it is very apparent there will be a major shortage of dicamba for burndown again this spring.  A number of folks from different retailers have stated that they have been allocated only a fraction of all the dicamba they sold two years ago. Continue reading

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