Category Archives: Insects

Sugarcane Aphids in Sorghum

Author: Scott Stewart, IPM Extension Specialist No Comments

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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Plant bugs increasing in cotton

Author: Scott Stewart, IPM Extension Specialist No Comments

There have been no reports of stink bugs in cotton and populations in soybean remain unusually low. There have been some reports of spider mites and aphids in some cotton fields, but it is an increase in plant bugs numbers that is the most obvious change this week. Infestation levels are variable, but a higher numbers of adults and a few nymphs are present in many fields. This includes both tarnished plant bug and clouded plant bug in some areas. Below are a few reminders and suggestions for the coming 2-3 weeks. Continue reading

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Moth traps and southwestern corn borers

Author: Scott Stewart, IPM Extension Specialist Comments Off on Moth traps and southwestern corn borers

As always, moth trapping data for the season can be found on the quick links menu (http://www.utcrops.com/BlogStuff/2017MothTrappingData.pdf). We are now catching a few more corn earworm (bollworm) moths, but nothing too startling. However, it is clear that the second generation moth flight for southwestern corn borer is underway, and we will catch even more moths next week. Keep in mind that there is a lot of variation among locations. It can be a waste of money to treat for southwestern corn borers based on trap catches that are not near your fields. You should be running a few Continue reading

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Plant Bugs and Aphids in Cotton

Author: Scott Stewart, IPM Extension Specialist Comments Off on Plant Bugs and Aphids in Cotton

As we move into the third week of squaring on many fields, with some earlier field having 12+ nodes, I’ve had some calls about plant bugs and aphids. Below are some points to consider for each of these pests. Continue reading

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Kudzu Bug Migration into Soybean

Author: Scott Stewart, IPM Extension Specialist Comments Off on Kudzu Bug Migration into Soybean

I’ve been watching kudzu bug populations on kudzu, and I am now seeing late-instar immature stages and next-generation adults. This means we will start seeing adults migrating into some soybean fields. With the mild winter and early spring, this migration will be sooner than we’ve seen in the past. We might have expected it to be larger also, but populations on kudzu do not seem especially high. A fungus (Beauveria bassiana) has helped considerably at reducing populations of kudzu bug , and I’m hoping we again see the benefits this year. You will notice a fuzzy white fungus growing on dead nymphs and adults when they are filled by Beauveria. Continue reading

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