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Category Archives: Cotton

02
Sep
2014
Crop Progress
Author: Chuck Danehower, Extension Area Specialist - Farm Management No Comments

As reported by NASS on September 2, 2014

CORN HARVEST BEGINS

Mostly dry conditions allowed corn producers to begin harvesting with early yields looking favorable. Soybean and cotton farmers took advantage of the dry weather to finish up spraying for pests. Higher temperatures allowed cotton to catch up to more normal development levels. Continue reading at Crop Progress 8 31 14.

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28
Aug
2014
Heat unit status in cotton
Author: Dave Verbree, Crop Physiologist and Agronomist No Comments

Dave Verbree and Tyson Raper

As of 8/26/14, this cooler than normal year has set cotton back by 166-215 heat units depending on the planting date (Table 1). Based on the 30-yr average, we typically accumulate about 18.5 DD60s/day during this time of year which puts our cotton 9-12 days behind schedule. However, we have been accumulating about 23 DD60s/day over the past 5 days which is helping us catch up. Unfortunately, the number of DD60s per day normally begins to drop about 0.2 degrees each day at this time of year.

We need about 1625 DD60s to reach 1st open boll and some of those who planted timely, did not over-fertilize, and managed for earliness are already there. We need about 2200 DD60s to reach maturity so we hope the above average temperatures will stick around a few more weeks. Realistically, most of us should expect cool temperatures during defoliation and plan to use a two-pass approach, relying more on our herbicidal defoliants to finish off the job. We will post more about defoliation in the coming weeks.

Table 1. Accumulated heat units (DD60s) for Jackson, TN by planting date.

Planting date 2014 30-yr avg. Difference
May 1 1758 1924 166
May 8 1716 1884 168
May 15 1616 1831 215
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27
Aug
2014
Crop Progress
Author: Chuck Danehower, Extension Area Specialist - Farm Management No Comments

 As reported by NASS on August 25, 2014

SCATTERED SHOWERS PROVIDE RELIEF TO CROPS

In spite of the rapid return to more normal August temperatures, rains over some crop producing areas provided a needed boost. In some areas, dry conditions still persist and crop and pasture stress is prevalent. Cotton growers would feel more comfortable with their crop getting more heat units before our first frost. Through all the up and down weather this season, crops production is expected to be normal to above normal. Continue reading at Crop Progress 8 24 14

 

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25
Aug
2014
Aerial Sowing Cover Crops for Weed Control
Author: Larry Steckel, Extension Weed Specialist 2 Comments

Aerial sowing cover crop questions have been numerous this month.  Indeed the wet month of August does greatly increase the probability that aerial seeding will be successful as we enter September.  This was the case last year where aerial seeding cover crop into standing crops in September was quite successful for many.  Continue reading

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25
Aug
2014
Madison County Standard Test Demonstration
Author: Tyson Raper, Cotton & Small Grains Specialist No Comments

DSC_0078We’ve got some really nice differences between varieties showing up in the County Standard Test Demonstration located here on the West Tennessee Research and Education Center (605 Airways Blvd., Jackson, TN 38301).  I would encourage anyone interested in a side-by-side comparison of varieties to take a look at these strip-plots.  This demonstration is located immediately adjacent to the station’s front entrance on the right.  Coordinates for the southwest corner are lat 35.618224°, lon -88.846448°.  Variety signs are located in the 2nd row of each 4 row plot.

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24
Aug
2014
2014 University of Tennessee Cotton Tour
Author: Tyson Raper, Cotton & Small Grains Specialist No Comments
 
22
Aug
2014
Moth Trapping Report (Corn Earworm are Flying)
Author: Scott Stewart, IPM Extension Specialist No Comments

This will be the last week that moth trapping data will be reported (link here).  Results from last week indicate the the corn earworm (bollworm) flight has finally kicked off, but trap catches last week varied considerably from 2 – 213 moths per trap.  The hot spots appear to be Continue reading

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20
Aug
2014
General Insect Situation
Author: Scott Stewart, IPM Extension Specialist No Comments

Insects are predictably unpredictable, but some general observations for this current week are below. Continue reading

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19
Aug
2014
Crop Progress
Author: Chuck Danehower, Extension Area Specialist - Farm Management Comments Off

As reported by NASS on August 18, 2014

 DRY WEATHER PERSISTS OVER SOUTHERN MIDDLE TENNESSEE

While rains and cooler temperatures occurred throughout most other parts of the state, dry conditions continued in the southern parts of Middle Tennessee, causing stress on row crops and pastures. Statewide, insect pressure increased slightly, but still remained light compared to historic levels. Lower night-time temperatures slowed cotton progress. Continue reading at Crop Progress 8 17 14.

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14
Aug
2014
Cotton Insects – Nearing the End
Author: Scott Stewart, IPM Extension Specialist Comments Off

The bollworm flight has begun in many areas. A general decline in plant bug populations is being observed, but stink bugs continue to linger. Some fields of cotton have now reached a maturity where we should and have terminated insecticide applications for plant bugs, stink bugs and bollworms. For later maturing fields, it may still be necessary to manage pest infestations for a Continue reading

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13
Aug
2014
Cotton and lightning
Author: Tyson Raper, Cotton & Small Grains Specialist Comments Off

wide_angle_injury_from_strike

 

I have visited several fields in the past few weeks to examine circular/slightly irregular areas characterized by wilt, severe necrosis and death. After visiting with several other specialists, it is our consensus that these injured areas were caused by lightning. Although no action can be taken to bring injured plants out of the stress, additional information on plant symptoms may help you properly diagnose the stress and reduce the amount of ‘flak’ directed at your sprayer operator. Continue reading

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11
Aug
2014
Crop Progress
Author: Chuck Danehower, Extension Area Specialist - Farm Management Comments Off

As reported by NASS on August 11, 2014

LATE-WEEK RAINS HELP CROPS

Farmers welcomed much-needed rains at the end of last week. These rains provided a shot in the arm to soybeans, corn and pastures. High temperatures early in the week assisted cotton growth. These same high temperatures caused some stress in cattle. Hay producers took advantage of the dry weather early in the week until they were forced out of the fields by rain. Continue reading at Crop Progress 8 10 14.

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