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Category Archives: Insects

17
Dec
2014
TAPA Winter Agronomic Workshop and Cotton Focus
Author: Scott Stewart, IPM Extension Specialist No Comments

Mark your calendars for the TAPA Winter Agronomic Workshop (Wednesday, February 11) and Cotton Focus (Thursday, February 12).  Both meetings will be held at the Doubletree Hotel in Jackson, Tennessee.   Continue reading

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29
Oct
2014
Insecticide Seed Treatments in Wheat … Know What You’re Buying!
Author: Scott Stewart, IPM Extension Specialist 1 Comment

Insecticide seed treatments are not universally recommended in wheat, but they are often suggested for early planted wheat. Indeed, recent data suggests that a foliar insecticide application late in the fall or during the winter can often accomplish the same objective, sometime even better, of preventing early transmission of barley yellow dwarf virus (BYDV) by aphids. Continue reading

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24
Oct
2014
Of what value are neonicotinoid seed treatments in soybean?
Author: Scott Stewart, IPM Extension Specialist Comments Off

There has been a recent furor about the value of neonicotinoid insecticides such as Cruiser and Gaucho in soybean. This stems from a recent “benefits assessment” released by the EPA (http://www2.epa.gov/pollinator-protection/benefits-neonicotinoid-seed-treatments-soybean-production). This is the first step towards the banning of neonicotinoid seed treatments in soybean, mostly stemming from concerns about how these treatments affect pollinators. My response below in rather lengthy, but I wanted to get on the public record. Continue reading

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14
Oct
2014
2014 Tennessee Wheat Quick Facts
Author: Tyson Raper, Cotton & Small Grains Specialist Comments Off

14TNwheatquickfacts

With our fly-free date of October 15th just around the corner, several of us are beginning to think about wheat planting.  As we enter this wheat season, I hope you will find utility in our hot-off-the-press 2014 Tennessee Wheat Quick Facts Publication (W 321)which is now available online.  This document is Continue reading

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10
Oct
2014
Private Applicator Certification Deadline Approaching
Author: Scott Stewart, IPM Extension Specialist Comments Off

One of our County Agents, Walter Battle, had the good idea of asking me to post this information.

Producers as the 2014 harvest continues, be mindful that on October 21st, Tennessee Department of Agriculture Private Applicator Certifications will expire. With that in mind, many University of Tennessee Extension offices are providing re-certification trainings. Call or check with your Continue reading

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18
Sep
2014
Final Bug Thoughts
Author: Scott Stewart, IPM Extension Specialist Comments Off

I’m not sure what a bug thinks, but I don’t think they are deep thinkers. We have that in common, but at least I know we’ve pretty much wrapped up this season in terms of insect control. Below are the last few reminders as we close out this year’s crop. Continue reading

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12
Sep
2014
What’s that white dot on this stink bug?
Author: Sandy Steckel, Extension Assistant Comments Off

Green-SB-tachinid-egg-best-(2)-webActually, that’s an egg.  In fact, it’s the egg of another insect and basically, that stink bug is doomed to an untimely and gruesome death.  That egg is from a Tachinid fly (picture below).  Continue reading

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12
Sep
2014
weather.utcrops.com
Author: Dave Verbree, Crop Physiologist and Agronomist Comments Off

A new tool for tracking weather, heat units, and crop progress

I needed a quick way to view and download weather data from several counties, to determine accumulated heat units for many different planting dates and crops, and to compare against the 30-yr averages for making predictions and crop management decisions. So, I developed a web-based tool with that express purpose. Just point your browser or click-on http://weather.utcrops.com and the rest should be self-explanatory. There is also a Quick Link to this site on the left menu. If you are only interested in counties in Tennessee, you can click on Continue reading

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10
Sep
2014
Cotton Wraps Up, Soybean Insects Build
Author: Scott Stewart, IPM Extension Specialist Comments Off

Cotton:  Making insecticide applications for cotton insects at this late date is not recommended, and most folks have rightly “walked away” from fields and turned their attention to corn and soybean harvest. It is now 25 or more days past the last effective bloom Continue reading

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09
Sep
2014
What is this caterpillar in my net?
Author: Sandy Steckel, Extension Assistant Comments Off

SS-Skipper (7) webThe silver-spotted skipper, Epargyreus clarus, is a butterfly (pictured below) in the insect family Hesperiidae.  It is one of the largest, most widespread and commonly recognized skippers in North America.  The wing span of an adult may reach 2.4 inches.  Wings are brownish-colored with a median row of yellowish-gold spots on the forewings and a large, median, irregular-shaped patch of white on the hind wings.  Wing fringes are dashed with white.  Antennae are hook-tipped.  Skippers are well known for their rapid, Continue reading

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03
Sep
2014
Fall Armyworm Onslaught Continues
Author: Scott Stewart, IPM Extension Specialist Comments Off

Fall armyworms attack a wide range of grasses and other crops. Outbreaks have been reported on soybeans, sorghum, pastures and several other crops for over a month. We are having a biblical year with fall armyworm, especially in pastures and lawns. However, many are also wandering into the edges of soybean fields. My colleague, Dr. Frank Hale, recently sent the following information. Continue reading

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24
Aug
2014
2014 University of Tennessee Cotton Tour
Author: Tyson Raper, Cotton & Small Grains Specialist Comments Off