Category Archives: Insects

Reports of Armyworms in Wheat

Author: Scott Stewart, IPM Extension Specialist No Comments

There have been a couple of reports of armyworms in wheat. Armyworms defoliate wheat and may even cut the heads, typically when populations are high.  Yield loss is most likley if defoliation occurs during the milk stages, with little yield loss occurring even if severe defoliation occurs during the dough stage. The picture below was Continue reading

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Steps for Managing Insects in Grain Sorghum

Author: Scott Stewart, IPM Extension Specialist No Comments

With a substantial increase in sorghum acres, there are a lot of questions about managing insect pests. Sorghum will typically require more insect management then corn, especially in the Bt corn era. This means we are more likely to need one or more foliar insecticide applications. Below are some steps you should be thinking about for managing insects in grain sorghum. Continue reading

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Reminder: UT Cotton Scout School, May 29th

Author: Scott Stewart, IPM Extension Specialist No Comments

The annual UT Cotton Scout School will be held on Friday, May 29th at the West Tennessee Research and Education Center (605 Airways Blvd, Jackson). Registration will begin at 8:00 AM with the official program starting at 8:30. It will end with a lunch, but those interested can attend a short  ‘go to the field’ session after lunch. We hope to increase the hands-on portion of the program this year. Topics will include crop development, insect and weed identification, scouting techniques, and more. No registration fee or preregistration is required.

 

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Interesting Insects – Wireworms

Author: Sandy Steckel, Extension Assistant Comments Off

There are about 1000 North American species and most larvae in this family are slender, hard-bodied and shiny, which is how they got the name “wireworms”.  Many are found in the soil where they feed on newly planted seeds and roots of plants, including some important crops such as corn, cereals, cotton, beans, and potatoes. Continue reading

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Cotton in the ground, thrips in the air

Author: Scott Stewart, IPM Extension Specialist Comments Off

That’s kind of a dramatic title, but it is true that thrips are always present on seedling cotton at some level. We’ve finally have some cotton getting out of the ground. It is almost a given that this cotton was treated with imidacloprid (e.g., Gaucho, Aeris, Acceleron FI). Thiamethoxam-based seed treatments such as Cruiser or Avicta are no longer recommended in cotton because Continue reading

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Thinking About Plant Bugs in Cotton

Author: Scott Stewart, IPM Extension Specialist Comments Off

It seems inevitable that cotton acres will drop in 2015, perhaps to a record low. I believe the number one factor causing increased plant bug pressure is reduced cotton acres, concentrating similar numbers of plant bugs in fewer acres. Thus, I suspect tarnished plant bugs will continue to be a major factor in cotton. Plant bugs are an important but manageable problem. Below are a few bullet points to think about in advance of planting. Continue reading

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