All posts by Scott Stewart, West TN Research & Education Center

Soybean Insect Problems Remain Generally Calm But …

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With the cool and drizzly weather, not too many people have bee looking at late maturing soybean. But it appears there are not any serious, widespread insect problems. There have been some reports of stink bug and soybean looper infestations, albeit mostly at sub-threshold levels. Having said that, the exception proves the rule. It remains very important to Continue reading


Soybean insect update and identifying redbanded stink bugs

Many of our early soybean fields are turning yellow and came through the season not needing an insecticide application. I’ve had a number of calls about threshold levels of kudzu bugs in some of these fields. The threshold is 1 nymph/sweep, and some fields are running 2-3 times this level. Although this exceeds threshold, I’m Continue reading


Finishing Cotton Insects … But Not Soybean

COTTON: Most cotton has accumulated enough heat units that the need for scouting and further insecticide applications has passed. Based on last effective bloom date for West Tennessee and the calendar, any insecticide applications in late maturing cotton should wrapped up within the next 4-5 days.

A short and sweet synopsis of the 2017 season is Continue reading


Deciding to treat late season spider mites in cotton

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Discoloration caused by spider mites

People are often resistant to making applications to control spider mites, particularly later in the season. I understand the reluctance to treat. We’ve all had experiences where populations crash on their own or stay limited to small areas of a field, but the reverse is also true. The threshold of 30-50% of plants showing injury with mites present is the best we’ve been able to do, but we all know that rainfall or irrigation reduces the impactsof spider mites. The truth is that Continue reading


Bollworm / Corn Earworm Update in Cotton and Soybean

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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


Bollworm moth flight kick off

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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