Category Archives: Insects

2014 University of Tennessee XtendFlex™ Cotton Variety Trials

Author: Tyson Raper, Cotton & Small Grains Specialist No Comments

Tyson Raper and Larry Steckel

During the 2014 growing season, the University of Tennessee Cotton Variety Testing program was given an opportunity to evaluate several of the new Monsanto Bollgard II® XtendFlex™ cotton varieties. Given the recent de-regulation of this trait, many may find this data of interest. (De-regulation of dicamba applications to these varieties is still pending.) Continue reading

Print Friendly

Spraying aphids in wheat the next several weeks

Author: Scott Stewart, IPM Extension Specialist 4 Comments

The following is an updated version of an older article … The next 4-5 weeks is the time to consider making a foliar application for aphids in wheat. I’ve discussed the potential value of managing aphids to prevent the spread of barley yellow dwarf virus (BYDV) in a previous article. A late-winter, foliar insecticide application, at least on wheat not having an insecticide seed treatment, has shown a consistent yield benefit in my testing over the last five years (figure below). Continue reading

Print Friendly

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

Print Friendly

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

Print Friendly

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

Print Friendly