Tag Archive: Control

Manage Potassium to Control Cotton Stemphylium Leafspot

Stemphylium in cotton. Image credit: Thomas County Ag Now is the time to implement potassium (K) management plans for cotton. Late-season K deficiency is linked to cotton leafspot (Stemphylium) disease. Stemphylium begins with minor leaf spotting and can lead to severe premature defoliation under certain circumstances. Potassium in plant cells is vital for the regulation …

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Permanent link to this article: http://okaloosa.ifas.ufl.edu/newsletters/2015/06/05/manage-potassium-to-control-cotton-stemphylium-leafspot/

Large Carpenter Bee Management and Control

Photo 1 Large Carpenter Bee – Photo by Shep Eubanks Photo 2 Carpenter Bee Gallery – photo courtesy of bugwood.org   Every year beginning in mid-March to early-April, Extension Agents begin to receive inquiries about managing carpenter bees which are attacking barns, eaves, rafters, and other wooden structures.  The bee most commonly responsible for economic …

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Permanent link to this article: http://okaloosa.ifas.ufl.edu/newsletters/2015/03/31/large-carpenter-bee-management-and-control-2/

Hairy Indigo Control in Peanuts

Hairy indigo can be a challenging legume weed to control in peanuts. Photo credit: Jay Ferrell B. Colvin, J. Ferrell, and R. Leon Hairy indigo (Indigofera hirsuta) is an annual legume that was introduced to Florida as a forage crop. It has since escaped cultivation where it can be a troublesome weed in some crop …

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Permanent link to this article: http://okaloosa.ifas.ufl.edu/newsletters/2015/02/20/hairy-indigo-control-in-peanuts/

Common Bermudagrass Control in Peanuts with Fusilade or Select

Common bermudagrass (Cynodon dactylon) is a mat-forming perennial that can be found just about anywhere in the southeastern US – from roadsides to production fields. This weed is very well adapted to the South and persists in areas with a variety of soil textures, soil pH, and fertility levels. Although common bermudagrass can be beneficial …

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Permanent link to this article: http://okaloosa.ifas.ufl.edu/newsletters/2015/01/24/common-bermudagrass-control-in-peanuts-with-fusilade-or-select/

Section 18 Approved for Aphid Control in Forage Sorghum

The white sugar cane aphid is new, devastating pest this year in Florida sorghum. It has moved in from Texas, Louisiana, Mississippi and has been a major problem in Alabama and Georgia as well. For more information about the aphid, see White Sugarcane Aphid Spreading Across North Florida. The only labeled treatments up until this week have …

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Permanent link to this article: http://okaloosa.ifas.ufl.edu/newsletters/2014/09/26/section-18-approved-for-aphid-control-in-forage-sorghum/

New Herbicide being Tested for Prickly Pear Control

A new herbicide has recently been released called Trumpcard which contains both fluroxypyr and 2,4-D. Prickly pear control trials with Trumpcard are ongoing at the Univerisity of Florida, becuase it is expected that this combination will work as effectively as Cleanwave, which is no longer commercially available. Jay Ferrell and Brent Sellers, Extension Weed Specialists …

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Permanent link to this article: http://okaloosa.ifas.ufl.edu/newsletters/2014/09/06/new-herbicide-being-tested-for-prickly-pear-control/

Timing is Critical for Palmer Pigweed Control

Palmer amaranth growing where the center pivot was located at the time of pre-emergence herbicide application. Photo: J. Thompson Panhandle farmers are busy. Many are still planting peanuts and cotton, some are harvesting wheat and oats, cutting hay, putting out fertilizer and spraying for weeds and thrips. Herbicide applications are going out in areas that …

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Permanent link to this article: http://okaloosa.ifas.ufl.edu/newsletters/2014/05/30/timing-is-critical-for-palmer-pigweed-control/

Large Carpenter Bee Management and Control

Photo 1 Large Carpenter Bee – Photo by Shep Eubanks Every year beginning in mid-March to early-April, Extension Agents begin to receive inquiries about managing carpenter bees which are attacking barns, eaves, rafters, and other wooden structures.  The bee most commonly responsible for economic damages is typically the large Carpenter bee (see Photo 1) Photo …

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Permanent link to this article: http://okaloosa.ifas.ufl.edu/newsletters/2014/04/05/large-carpenter-bee-management-and-control/

Thistle Control in Pastures

Thistle that has began to bolt. Photo credit: Jay Ferrell This is a time when most people are not thinking about pasture maintenance, but right now is when thistles are the most susceptible to control efforts. In January/February, most thistles are still in the rosette stage (a small ring of leaves on top of the …

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Permanent link to this article: http://okaloosa.ifas.ufl.edu/newsletters/2014/03/22/thistle-control-in-pastures/

Weed Control in Winter Pastures

Wild radish, commonly referred to as wild mustard can become a serious weed problem in winter pastures. It is time to begin scouting fields so that herbicide applications can be made prior to flowering. Photo credit: Doug Mayo Dr. Jay Ferrell, UF/IFAS Extension Weed Specialist & Dr. Brent Sellers, UF/IFAS Extension Weed Specialist Many cattle …

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Permanent link to this article: http://okaloosa.ifas.ufl.edu/newsletters/2013/12/14/weed-control-in-winter-pastures/

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