Category Archives: Insects

Interesting Insects: Hover flies

Author: Sandy Steckel, Extension Assistant No Comments
Hover fly
Hover fly

Adult flies in the Syrphidae family are conspicuous day-flying insects that are very skilled at hovering, and love to frequent flowers, which led to their common names of “hover flies” or “flower flies”. They are brightly colored and are very abundant in many familiar environments. Many of the hover flies strongly mimic bees in coloration and sound and it is no wonder why many folks confuse them for being small bees or even pests. Continue reading

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Save a Spray, Record NAWF=5 (Cutout)

Author: Scott Stewart, IPM Extension Specialist No Comments

This is a re-run of an article posted last year. The timing is right as many fields are at or approaching cutout. Counting the number of nodes above first-position white flowers (NAWF) is a well-recognized way to monitor the maturity of your cotton crop. Cutout is defined by having an average of 5 nodes above first-position white flowers. If you record the date of cutout, you can start counting down the days until insecticide applications for some insect pests can be terminated. Continue reading

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Cotton Progress/Heat Unit Accumulation for 2015

Author: Tyson Raper, Cotton & Small Grains Specialist No Comments

IMG_1344
A rough start for many of TN’s cotton acres has turned into a decent summer for the majority of our acreage.  This is very evident when looking at accumulated heat units noted at the West Tennessee Research and Education Center in Jackson, TN.  As you can see in the below graph, we are quite a bit ahead of the last two years on accumulated heat units.  Warm temperatures in mid/late June and timely rains have Continue reading

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Sorghum Insect Update (Revised)

Author: Scott Stewart, IPM Extension Specialist No Comments

The phone has been ringing off the hook about sorghum insect control. Sugarcane aphids are being reported in more fields across a wider area. The map below provides a general status on known infestations at this time. There are also plenty of questions about controlling headworms. Let me provide some information and management suggestions. Continue reading

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Soybean pests relatively quiet

Author: Scott Stewart, IPM Extension Specialist No Comments
Corn earworm and pod damage
Corn earworm and pod damage

There have been only a few calls concerning soybean insect problems. Mostly what is being reported is sub-threshold infestations of stink bugs, green cloverworm, a few remaining Japanese beetles, and kudzu bugs in some areas (see previous article). As usual, we can expect things to get more active as the season progresses. Below are some things to key on. Remember that late maturing fields are generally more likley to have significant insect pests problems. Continue reading

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Interesting Insects: Blister beetles

Author: Sandy Steckel, Extension Assistant 2 Comments

Occasionally, you catch a blister beetle in a sweep net sample in Tennessee soybeans. These large, showy adult beetles may also feed in clusters and defoliate the plants. Defoliation of soybeans in an area a big as a pickup truck is not a concern, but if it occurs over a large area, such as the size of a barn, treatment is warranted. Refer to PB 1768 for control options. Continue reading

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Watch for kudzu bugs in soybean

Author: Scott Stewart, IPM Extension Specialist No Comments

This advice is primarily for those in east Tennessee and counties bordering the Mississippi and Alabama borders. The second generation flight of kudzu bugs has been active for the past couple of weeks. I’ve observed treatment level infestations in some fields in east Tennessee and in the Memphis area. It is likley that kudzu bugs have infested and are continuing to lay eggs in other soybean fields. Below are some tips for managing kudzu bugs. Continue reading

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