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Tips for Managing Rice Seedling Diseases

Seedling diseases can prevail in any rice field. However, their likelihood can be reduced with proper management. Seed rots and seedling diseases are generally “complex” meaning there can be more than one causal agent in a field. In fields with seedling problems, pathogen structures such as mycelia may easily be detected on the collar of

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Wheat diseases mostly a no-show so far

Whether measured by the calendar or by wheat growth stage, the level of diseases in wheat fields across Arkansas appears to be unusually low. So far, only barley yellow dwarf has been confirmed from plots at Marianna. The probability of a stripe rust epidemic this year is extremely low. Given this lack of foliar fungal

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Arkansas Rice Update 4-4-14

April 4, 2014                                 No. 2014-4 Dr. Jarrod Hardke, Dr. Rick Norman, Dr. Bob Scott, and Scott Stiles Planting Progress

I’m guessing around 5% of rice is in the ground to date.  Most of it is isolated in places that have lucked into dry conditions.  A number of fields went in early this week ahead of

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Managing bacterial panicle blight: Research gives helpful clues

“Be proactive” – this is the best approach to beat the unexpected effects of sporadic diseases such as bacterial panicle blight (BPB) of rice.  Looking back, the rice yield and quality losses we had in 2010 and 2011 were enormous.  Having most of the conventional varieties still susceptible to BPB and with no chemical options

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Are you maximizing control with your herbicide application?

This is an interesting time in Arkansas agriculture as new technologies are on the horizon in many crops and resistant weeds are becoming more prevalent in all crops and across multiple modes of action.  We have screened multiple samples of barnyardgrass that contain 3-way resistance to Propanil, Facet, and Newpath (ALS) chemistry.  Also annual and

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Plan your field size to effectively manage autumn decline or straighthead

“Drain and dry” is the recommended protective or rescue strategy to manage these two abiotic phenomena in rice.  Historically, straighthead disorder (Picture 1) has been associated with old cotton fields where arsenic pesticides were once used.  Although arsenic produces straighthead symptoms, it may not be the only cause.  Straighthead is a severe abnormality that may

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Be aware of your rice varieties’ reaction to disease

It is important to know the disease susceptibility levels of your rice varieties you are considering to grow and how to manage them accordingly.  I am getting questions on disease resistance levels for varieties that have not been reported in the “Disease Reaction Table of 2013” (Table 1).  If a rating is lacking in the

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Plan ahead to make profitable decisions about rice disease management

I hear some saying that the crop season in 2014 will be a “normal” one following such a severe winter.  Although I did not like the winter, my wish is that the cold temperature has effectively suppressed rice pathogens.  However, since we cannot be sure of this and the source of inoculum for all diseases

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Soybean growers: Keep nematodes in mind

Nematodes are common pests in many soybean fields in the state.  Sometimes called the “hidden enemy”, root-knot, soybean cyst, and reniform nematodes can be costly if they are ignored.  Because they are not visible, damage caused by nematodes  is often overlooked.  Nematode are microscopic root-parasites, and the symptoms they cause, including plant stunting, yellowing of

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2013 Soybean performance results now available in the Soybean Update

Hundreds of soybean varieties are commercially available to growers in Arkansas. Varietal performance, including yield, varies according to location, environmental adaptability to soils, maturity, lodging, height, disease and nematode resistance, and herbicide and chloride sensitivity.  The information listed in these publications is largely derived from the University of Arkansas Division of Agriculture Soybean Performance Trials

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