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Category Archives: Insects

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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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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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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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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11
Feb
2014
Fire Ant Mounds in Soybean Fields
Author: Scott Stewart, IPM Extension Specialist Comments Off

It comes in spurts, but every so often I get questions about how to eliminate fire ant mounds from soybean fields.  The primary issue is stoppages that occur when the combine header hits a good sized mound.  Operators may also Continue reading

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21
Jan
2014
Spraying aphids in wheat the next several weeks
Author: Scott Stewart, IPM Extension Specialist Comments Off

Below is a rerun of an article from last year, but my recommendation has not changed. However, there may be less benefit this year compared with previous years given the relatively late start to the wheat crop and the cold winter.  This may have limited fall and early winter colonization of aphids in wheat. Continue reading

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02
Jan
2014
Cotton Focus, February 13th
Author: Scott Stewart, IPM Extension Specialist Comments Off

Mark your calendars for the annual UT Cotton Focus meeting that is scheduled for Thursday, February 13th at the West Tennessee Research and Education Center in Jackson. Program highlights are below. Pre-registration is not required and there is no registration fee. CEUs are available for Pesticide Applicators and Certified Crop Advisors. Continue reading

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19
Dec
2013
New Publications: Soybean Variety Trials and Insect Control Recommendations
Author: Scott Stewart, IPM Extension Specialist Comments Off

Results of the 2013 Soybean Variety Performance Tests in Tennessee have been posted at www.UTcrops.com.

 

The 2014 Insect Control Recommendations for Field Crops (PB 1768) is now available online.  Hard copies of this publication are not yet available.

 

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07
Nov
2013
Tobacco Thrips Resistance to Cruiser
Author: Scott Stewart, IPM Extension Specialist 2 Comments

Syngenta has recently confirmed the presence of resistance to thiamethoxam in populations of tobacco thrips collected from the Mid South. Thiamethoxam is the active ingredient used for thrips control on cotton seed treated with Cruiser, Cruiser Avicta, and Acceleron N.  It is also the active ingredient used as Cruiser in soybean and corn. This discovery comes as no surprise in Tennessee as thrips control failures on Cruiser treated cotton seed have become more and more common during the past few years. Continue reading

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24
Oct
2013
Late Start to Wheat Affects Insect Control Options
Author: Scott Stewart, IPM Extension Specialist Comments Off

The late harvest of most crops is also making for a late planted wheat crop. This has several potential implications related to insect control. Continue reading

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