Category Archives: Insects

Critters in Our Crops

Author: Scott Stewart, IPM Extension Specialist Comments Off on Critters in Our Crops

My phone hasn’t been going crazy with critter calls, but slug injury has been the clear winner this week, both in cotton and soybean. I also want to put forth a few reminders about thrips in cotton. Continue reading

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Southwestern Corn Borer in Non-Bt Corn

Author: Scott Stewart, IPM Extension Specialist Comments Off on Southwestern Corn Borer in Non-Bt Corn
SWCB Larva (click to enlarge)

Moth traps catches clearly indicate that the first generation flight is peaking (link to moth trap catches). Local moth catches may vary considerably, and that is why we suggest running pheromone traps on your farm if you are growing non-Bt corn. The highest trap catches are on farms in U.S. Fish and Wildlife Refuges, primarily because they are not allowed to grow Bt corn. Please link to the publication below for more information about the management of this pest.  Below, I’ve also provided the suggested treatment threshold for southwestern corn borers in non-Bt corn during the whorl stage. Continue reading

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UT Cotton Scout School This Friday

Author: Scott Stewart, IPM Extension Specialist Comments Off on UT Cotton Scout School This Friday

The University of Tennessee Cotton Insect Scout School is scheduled for Friday, May 26 at the West Tennessee Research and Education Center in Jackson. The address in 605 Airways Blvd, Jackson TN. There is no fee, and preregistration is not required.  Registration begins at 8:00 AM with the program starting at 8:30. Content will include hands-on training with an optional ‘go-to-the-field session’ after a box lunch. Topics covered will include cotton development, identification of insects (and their damage) weed and diseases and their damage, and weed identification.

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Reminder – Cotton Scout School (Friday, May 26th)

Author: Scott Stewart, IPM Extension Specialist Comments Off on Reminder – Cotton Scout School (Friday, May 26th)

The University of Tennessee Cotton Insect Scout School is scheduled for Friday, May 26 at the West Tennessee Research and Education Center in Jackson. The address in 605 Airways Blvd, Jackson TN. There is no fee, and preregistration is not required.  Registration begins at 8:00 AM with the program starting at 8:30. Content will include hands-on training with an optional ‘go-to-the-field session’ after a box lunch. Topics covered will include cotton development, identification of insects (and their damage) weed and diseases and their damage, and weed identification.

 

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Armyworms in Wheat (Better than it Looks)

Author: Scott Stewart, IPM Extension Specialist Comments Off on Armyworms in Wheat (Better than it Looks)

Yesterday, I had the opportunity to visit some fields in Shelby County and had reports from a couple of other areas where armyworms have completely defoliated some wheat fields (or spots in fields). Armyworms were not hard to find, but many had pupated (“cycled out”) or were being killed by diseases and parasites. The good news is Continue reading

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Moth Trapping Data

Author: Scott Stewart, IPM Extension Specialist Comments Off on Moth Trapping Data

This is a reminder that moth trapping data for corn earworm (bollworm), tobacco budworm, and southwestern corn borer will be posted weekly during the summer. You can open the Excel file under the Quick Link menu on the left or directly at this link – http://www.utcrops.com/BlogStuff/2017MothTrappingData.xls. A few southwestern corn borers were caught this week, indicating the first generation is starting, perhaps just a little earlier than usual. Generally low numbers of corn earworm and tobacco budworm moths were also caught last week.

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True Armyworms in Wheat

Author: Scott Stewart, IPM Extension Specialist Comments Off on True Armyworms in Wheat

This is a repeat of an older article … as a reminder.  There have been a couple of reports of armyworms in wheat. Nothing crazy but much of the wheat is still in the milk stage and would be susceptible to excessive defoliation. Occasionally, armyworms may even cut the heads, typically when populations are high.  Yield loss is most likley if Continue reading

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Cotton Scout School and New Cotton Insect App

Author: Scott Stewart, IPM Extension Specialist Comments Off on Cotton Scout School and New Cotton Insect App

The University of Tennessee Cotton Insect Scout School is scheduled for Friday, May 26 at the West Tennessee Research and Education Center in Jackson. Registration begins at 8:00 AM with the program starting at 8:30. Content will include hands-on training with an optional ‘go-to-the-field session’ after a box lunch. No fee of preregistration is required.

A new web-based, mobile friendly Cotton Insect Field Guide is now available.  Add this to the home page of your phone or tablet for app-like access to information on insect management including sampling methods, treatment thresholds, and insecticide selection. There are some also some good pictures. This guide (and others) can also be accessed from this news site. I hope add a similar resource for soybean by mid-summer.

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