For wheat that has not yet jointed (Feekes 3 to 5), these temperatures should not cause any damage. However, for wheat that has jointed (Feekes 6), temperatures at or below 24°F for 2 hours may cause freeze damage.
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Nitrogen (N) management for wheat production is one of the most challenging operations that producers face. There is a fine balance between applying the proper rate of N, current and future weather conditions, economics, and potential environmental consequences.
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University of Kentucky specialists are holding their first Wheat Field School of the year March 1 at the UK Research and Education Center Farm in Princeton. The school runs from 9 a.m. to 4 p.m. CST.
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The November WASDE made minor changes to the 2017-18 wheat supply and demand projections, which is typical as there is little new production or demand information until the “final” estimates in January.
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Dr. Raul Villanueva presents winter updates 2017 for Aphids, Seed Treatment, Viruses and Insecticides on Small Grains.
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Kentucky grain farmers are harvesting corn and are getting to the point where they will decide if and how much wheat they will plant this fall. The main changes this year are a modest increase in wheat prices, a small increase in soybean prices, and a slight decrease in nitrogen prices. These changes will make planting wheat more attractive relative to last year.
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J Stephen Emmick and Sons Farms are the 2017 Kentucky Wheat Yield Contest Winners with a yield of 126.46 Bu/A using No-Till and Pioneer 25R50.
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The U.S. Department of Agriculture’s National Agricultural Statistics Service (NASS) released its July Crop Production report today based on the Agricultural Yield survey conducted at the beginning of the month.
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Miss the UK Wheat Field Day? View the presentations from our extension specialists.
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Much of the wheat in Kentucky is now past the stage of applying a foliar fungicide for protection against Fusarium head blight. However, some late-planted fields and some late-maturing varieties may be at the beginning flowering stage now. Based on the rainfall that has occurred over the last several days, wheat that is flowering in Kentucky is at a high risk for Fusarium head blight.
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Much of the wheat crop in Kentucky has headed out and is flowering. Stripe rust (Figure 1) is now present in many Kentucky counties on susceptible varieties, and according to the Fusarium Head Blight Prediction Center, the current risk of Fusarium head blight (also known as “scab”) (Figure 2) is anywhere from low to high, depending on where you are in the state.
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During the week of April 15 to 21, 2017, there were 301 (Princeton) and 4 (Lexington) captures of true armyworm (Mythimna unipuncta) moths in pheromone-based traps in those locations. For Princeton, this is a 1/3 fold increase in 1 week (KPN), while in Lexington, there was no change in the number of moths captured
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Just like the porridge in the “Goldilocks and the Three Bears” story, there is a “just right” timing for when to apply a fungicide for protection against Fusarium head blight (a.k.a. scab) of wheat. That “just right” timing is the Feekes 10.5.1 growth stage (beginning flowering), when anthers are just beginning to extrude from the middle part of the wheat head.
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Economists in graduate school are instructed to tell farmers that “the cure for low prices is low prices.” While catchy, this phrase might require a little more explanation. The wheat market provides an example of low prices trying to cure low prices.
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A variety’s susceptibility or resistance to a given pathogen can be directly related to yield, grain quality and profitability. The University of Kentucky Small Grains Variety Testing Program annually evaluates the disease reaction among wheat varieties.
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I doubt there has been a case where I have been so happy to say “I WAS WRONG!”. Now that we have had a little more than a month since the 2017 freeze events, many –myself included– are left wondering: “Where is the damage?”
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The bird cherry-oat aphid, Rhopalosiphum padi (Figure 1), is one of the common aphids found in Kentucky on small grains, such as winter wheat and barley. R. padi is of economic importance due to the direct damage caused to grains by the transmission of barley yellow dwarf virus (BYDV).
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The wheat varieties we grow in KY will respond differently to the extremely low temperatures we have experienced over the past few days. Several traits come into play but the most important thing for the grower to consider at this point is growth habit, which can range from completely prostrate to very upright.
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