Category Archives: Soybean

01 Aug 2011

Crop Watch

01 Aug 2011
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As reported by NASS on August 1, 2011

CROPS REMAIN IN MOSTLY GOOD-TO-EXCELLENT CONDITION

The corn, cotton, soybean, and tobacco crops in Tennessee remain in mostly good-to-excellent condition in spite of the excessive heat and spotty rainfall. Some early planted corn acres are maturing rapidly, but overall the crop is progressing at a near normal rate. Soybeans are setting pods at a pace about a week behind the five-year average and are in need of moisture. Cotton is setting bolls at a pace also one week behind the five-year average. Continue reading →

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28 Jul 2011

“Worms” in Soybean Causing Problems

28 Jul 2011
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As expected, corn earworm infestations in soybean are requiring treatment in a number of fields. Thus far most of the action has occurred in the Mississippi River bottoms, but problems appear to be spreading northward and east from Shelby, Tipton and Lauderdale Counties.  There have also been several reports of large populations of yellowstriped armyworms mixed with lower levels of fall armyworm. Continue reading →

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25 Jul 2011

Crop Watch

25 Jul 2011
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As reported by NASS on July 25, 2011

SHOWERS PROVIDE SOME RELIEF; MORE RAIN IS NEEDED IN MOST AREAS

A high pressure system positioned over Tennessee prevented widespread rainfall this week; however, crops received some relief from afternoon and evening rainfall. Crops remain in mostly good condition, especially for late July. Crops were beginning to show stress at week’s end from the extreme temperatures and inadequate moisture. Soybeans are blooming and setting pods at a pace about a week to ten days behind the five-year average. Cotton is setting bolls at a pace almost a week behind the five-year average. Continue reading →

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21 Jul 2011

ALERT – Corn Earworm in Soybean

21 Jul 2011
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Reports of high moth numbers in some areas indicate a strong likelihood that we will need to treat some soybean fields for corn earworm (a.k.a. bollworm).  The high risk areas appear to be similar to last year and include Shelby, Tipton, Lauderdale, Dyer and Fayette Counties.  However, this is a problem that could potentially occur anywhere.  UT recommends treatment between R1 and R6 anytime counts reach or exceed an average of 9 larvae per 25 sweeps.  In reality, serious infestations normally begin between R1 – R3 when plants are flowering heavily.  It is also very common for infestations to be worst in fields that have a relatively open canopy, and thus, in late planted or wide-row fields. Continue reading →

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14 Jul 2011

Soybean Scout Schools, Middle Tennessee (July 18 and 19)

14 Jul 2011
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There are two remaining Soybean Scout Schools scheduled for Tennessee (see below).  These are field-side programs designed to give practical training on soybean management including insect, disease and weed control.  Each program is 1.5 – 2 hours long.  Participants will receive a scouting notebook and a sweep net while supplies last.  Directions are Continue reading →

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13 Jul 2011

Soybean – Be Alert for Fall Armyworm and Corn Earworm

13 Jul 2011
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Corn Earworm (a.k.a. bollworm) will feed on leaves, flowers and pods, but it is pod feeding that is the real concern.  They can be a serious threat to soybeans beginning at R1 – R5, but they usually get started in earnest during full bloom (R2).  The treatment threshold is 36 larvae per 100 sweeps.  Fall armyworms will also feed on foliage and pods.  Continue reading →

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07 Jul 2011

Alerts for Soybean Insect Pests

07 Jul 2011
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Stink Bugs.  Very few fields are at R2 and R3 at this time, but stink bugs are concentrated is some of these early fields.  We’ve been doing scout schools this week, and most of what I’ve been seeing is adult green stink bugs.  This is the most common species in Tennessee.  Normally, stink bug populations start building in earnest until R4 and R5.  However, they sometimes concentrate in a few fields that are ultra early compared with the remainder of the crop.  Treat anytime between R1-R7 when stink bug numbers average 36 or more per 100 sweeps. Continue reading →

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