Field Crops News

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Field Crop News

July 10, 2014

Cotton

As you are scouting your fields, I am sure you are all looking at plant bugs and stink bugs. Decisions spraying need to be made on scouting, understanding weather conditions, and thresholds. The presence of sink bugs in fields is not an issue until there are bolls on the plant.

The purpose of Mepiquat Chloride (commonly referred to as PIX) is to guide height and control the boll load of cotton. The decision to apply PIX at early bloom is dependent on moisture.

The most commonly used technique is the application of ½ to 1 pint of Mepiquat at early bloom (defined as 5 to 6 white blooms per 25 feet of row) on cotton that is more than 24 inches tall if conditions favor a response to Mepiquat. Cotton that is less than 20 inches tall at early bloom does not receive a treatment. The ½- to 1-pint rate is also applied if the cotton averages 28 inches tall, even if early bloom has not yet occurred. Consult the label for additional precautions. For more information reference the Cotton Production Guide, Suggestions on Plant Regulator Use.

 Corn

Southern Corn Rust has been identified in eastern, NC. More information can be found in this publication by Ron Heiniger and Steve Koenning.

Please take time and visit our corn variety test on Mozingo Farms of Farmville that feature’s 20 hybrids from various seed companies.

Soybeans

Worms in early season soybeans. There are numerous reports of worms showing up in early season soybeans. There are many things that are important when scouting your fields and deciding when to spray for insects. This is a great article that explains this further. This article also contains additional links that can help you to further identify insects and correct thresholds.

Weed Control

Be sure to remember to stay ahead of weed problem in your fields. Pigweeds are almost impossible to control once they are taller than 4 to 6 inches. Palmer Amaranth can grow up to 2 inches a day. Consider these weeds to be resistant to ALS inhibitors as well as glyphosate so rotating chemistry is important. More information on controlling resistant weeds and other in certain crops can be found in the North Carolina Agricultural Chemicals Manual and it can be found online.