Category Archives: Soybean

07 Jul 2011

Not Enough Sprayers

07 Jul 2011
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Ignite over the top followed a day later with Gramoxone Inteon + Valor

It is apparent that we do not have the sprayer power in the state to keep up with all the demand.  Most of the pre applied herbicides in cotton and soybeans have played out and folks are scrambling to treat these fields for Palmer pigweed while at the same time trying to keep plant bugs beat back.  In some cases, they can tankmix an insecticide with the herbicide in cotton but often the timing does not work out. Most cotton fields have seen one to two Ignite applications applied over the top.  There have been some reports of Continue reading →

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07 Jul 2011

Monitor for Glyphosate-Resistant Goosegrass

07 Jul 2011
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Glyphosate-Resistant Goosegrass after two 22 oz/A applications of Roundup PowerMax

Glyphosate-resistant (GR) goosegrass has shown up in a couple cotton fields in Lake and Dyer counties (picture left).  In these fields, repeated applications of glyphosate failed to control the goosegrass. Unfortunately, by the time the grower realizes that the grass is glyphosate resistant it has 4 or more tillers and is too large for even an application of Select Max or Fusilade to control.  Back in the late 1980s, Select Max or Fusilade did not control large goosegrass.  This appears to Continue reading →

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06 Jul 2011

Crop Watch

06 Jul 2011
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As reported by NASS on July 5, 2011

CROPS IN GOOD SHAPE ENTERING MONTH OF JULY.  Last week’s mix of scattered rain and sunshine left most of Tennessee’s crops rated in good condition. The corn crop, in particular, has thrived so far this season, with over a quarter of the crop in excellent condition. Most areas received sufficient rain to keep soil moisture levels healthy while still providing farmers with enough dry days to conduct fieldwork. Wheat harvest and soybean planting were virtually complete across the state by week’s end. Continue reading →

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30 Jun 2011

Soybean Insect Update

30 Jun 2011
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There have been several more reports of threecornered alfalfa hopper (TCAH) infestations in seedling soybean where a high percentage of plants have been girdled.  Plants less than 10 inches tall are susceptible to girdling.  The girdling will not directly cause yield loss unless plants lodge.  Lodging often occurs later in the season and especially where stands are thin.  Please refer to my previous blog article about TCAH. Continue reading →

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28 Jun 2011

Crop Watch

28 Jun 2011
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As reported by NASS on June 27, 2011

GOOD WEATHER CONTINUES FOR TENNESSEE’S CROPS

Tennessee farmers received another week of favorable weather for crop growth. Scattered thunderstorms moved across the state and most areas recorded some amount of measurable precipitation. Several weeks of normal to above-average rainfall have replenished soil moisture levels. However, there were still enough dry days last week for farmers across the state to make some progress wrapping up wheat harvest, hay cutting, and soybean planting. As of the end of last week, Tennessee’s corn, cotton, soybean and tobacco crops were all rated in mostly good condition. Continue reading →

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22 Jun 2011

Crop Watch

22 Jun 2011
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As reported by NASS on June 20, 2011

RAIN ARRIVES AS WHEAT HARVEST PROGRESSES.  A slow-moving front dropped precipitation across most of Tennessee last week, creating improved conditions for spring-planted crops. Normal temperatures coupled with rains provided a welcome relief for farmers concerned about the effect of hot and dry weather earlier this month. In between rains, farmers were busy harvesting Continue reading →

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20 Jun 2011

Monitor Soybean Fields for Newly Emerged Palmer

20 Jun 2011
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Palmer amaranth take over a soybean field after 32 ozs of Roundup PowerMax followed a week later with 1.5 pts of Reflex + MSO

“These pigweed are kicking our #&^”….. That quote one county agent said to me the other day fully defines the weed issues in many soybean and cotton fields.  A number of soybean fields that did not have a Pre applied herbicide have become partially or completely over run with Palmer amaranth (Picture left) last week.  Some of these fields will be destroyed this week and Continue reading →

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20 Jun 2011

Watch for Threecornered Alfalfa Hoppers in Soybean

20 Jun 2011
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Threecornered alfalfa hoppers (TCAH) are being reported in soybean fields scattered throughout West Tennessee.  In my experience, populations during the seedling stage are often highest in late planted, reduced tillage fields (often in wheat beans).  In soybean less than 8-10 inches tall, this insect feeds in a circular fashion around the plant stem with its beak.  This girdling will eventually cause a swollen callus on the stem, but this may not be obvious on small plants.  Girdling causes little damage unless plants break over.  Continue reading →

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