Category Archives: Insects

Bollworm / Corn Earworm Update in Cotton and Soybean

Author: Scott Stewart, IPM Extension Specialist Comments Off on Bollworm / Corn Earworm Update in Cotton and Soybean

Good news, bad news.  The good news – I’ve only had a few calls about high infestation levels of bollworm (= corn earworm) in soybean. Most of these reports have been in late maturing soybean fields in or near the Mississippi River Bottoms. Bollworm infestation in cotton appear to be light to moderate. However, Continue reading

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Bollworm moth flight kick off

Author: Scott Stewart, IPM Extension Specialist Comments Off on Bollworm moth flight kick off

The bollworm moth flight is kicking off now in some areas. Of course this has implications for managing bollworm in cotton, soybean, and grain sorghum. Hot spots this week included traps located near Whiteville, Goldust, south Jackson, and Ridgley. Please keep in mind that local populations may vary considerably. You can check out this week catches at the link below. I’ve had another report of 100+ west of Covington in the Hatchie Bottoms in 3 nights.

http://www.utcrops.com/BlogStuff/2017MothTrappingData.pdf

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Thinking about cutout and terminating insecticide applications in cotton

Author: Scott Stewart, IPM Extension Specialist Comments Off on Thinking about cutout and terminating insecticide applications in cotton

The word ‘cutout’ is synonymous with NAWF5 and occurs when a field averages 5 or fewer nodes above the uppermost first-position white flower. Many fields have reached or past cutout in the past week. The white blooms present at cutout represent the last group of bolls that will Continue reading

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What the heck are redbanded stink bugs?

Author: Scott Stewart, IPM Extension Specialist Comments Off on What the heck are redbanded stink bugs?

The redbanded stink bug is a more infamous stink bug in the Gulf States, but after a couple of warm winters, this soybean pest can find its way into Tennessee. This has happened once before in the last 15 years, and based on observations to our south, I’m betting we will Continue reading

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Corn Earworm in Late Planted Soybean

Author: Scott Stewart, IPM Extension Specialist Comments Off on Corn Earworm in Late Planted Soybean

As our moth flight picks up, we need to be very aware about corn earworms (bollworm) infestations in soybean. It can be very destructive. Infestations most often occur in late maturing fields. Moths are most attracted to beans during R1 – R3 (early flowering), and open canopies really turn them on. Typically, problems are worse in the Continue reading

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Cotton Insect Update and Thinking Ahead About Bollworm

Author: Scott Stewart, IPM Extension Specialist 1 Comment

Reports continue to indicate moderate but variable infestations of TARNSIHED PLANT BUG in cotton. It’s time to switch over to drop cloth samples in most fields. The drop cloth is a preferred method of sampling for immatures, and remember the recommended treatment threshold is an average of Continue reading

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Sugarcane Aphids in Sorghum

Author: Scott Stewart, IPM Extension Specialist Comments Off on Sugarcane Aphids in Sorghum

Just a quick update … sugarcane aphids are now present statewide at some level, and there are some fields where treatment of grain, forage or sweet sorghum is needed. As for insecticide options, only Sivanto prime is labeled for use.  The label in grain and sweet sorghum allows application at rates up to 10.5 oz/acre, however, I suggest a rate of 4 oz/acre.  I’ve had excellent success with this rate.

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Soybean Scout School Reminders (Monday and Friday)

Author: Scott Stewart, IPM Extension Specialist Comments Off on Soybean Scout School Reminders (Monday and Friday)

Haywood County – Monday morning, July 17, 9:00 AM (Robert Thornton Farm, GPS: 35.469042, -89.397213). Location is field side on US-70/US-79/TN-1/1st St E approximately 1/4 mile north of Stanton, TN Link to Flyer

Henry County – Friday, July 21, 9:30 AM (Norwood Farms, 645 Norwood Road, Mansfield, TN) Link to Flyer

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