Cold Snap Had Limited Damage to Wheat Across Region, Developmental Problems More ConcerningMon, 16 Apr 2018 17:06:49 CDT
In this week’s wheat update webinar hosted by Oklahoma State University’s Plant & Soil Sciences Department, the OSU Extension Wheat team was joined with counterparts from other land grant systems including Texas A&M and Kansas State University. Particular focus was given this week to the damage caused by a recent cold snap from the week before, which extension was giving time to see to what extent the damage would manifest.
According to OSU Small Grains Specialist Dr. Dave Marburger, most of Oklahoma a week ago experienced temperatures well below freezing near the mid to low 20s along the southern border of Oklahoma on up toward the Kansas line for several hours. This scenario was replayed again this past weekend and Marburger says another week to ten days will be needed to see if more damage is revealed. In current observations, though, Marburger says the damage was relatively limited with some leaf-tip burning the most notable impact with the greatest severity it seems in and around the Apache, Okla. area. Crop growth in the different areas where Marburger’s test plots has reached mostly the boot stage to some heading.
Dr. Romulo Lollato with Kansas State University reported that his state’s crop was trailing behind both the Oklahoma and Texas crops developmentally. He says most farmers got a late start planting due to heavy rains in early October and then a long period of dryness that has stunted the pace of growth. Lollato estimates the crop in Kansas is at least two to three weeks behind its average benchmark. He reports some freeze damage in the southeast corner of the state where crops are more advanced than other locations.
Regarding disease and insect pressure this year, extension professionals from each of the three states reported very low activity of both suggesting that the dry conditions have kept things in check. Clark Neely of Texas A&M reports that weather conditions have not been conducive to the promulgation of Stripe Rust, though some cases of Leaf Rust have been noted although much weaker than seen in previous years. OSU’s Dr. Bob Hunger echoed those remarks reporting that foliar diseases this year have been very much on the low end of the scale, with the exception of some scattered reports of powdery mildew but nothing too serious. Some minor cases of brown wheat mite and winter grain were noted but in most cases this year - it is unlikely treatment will be necessary.
One question was posed from the audience enquiring about whether or not this crop’s delayed development would translate to a later harvest. The panel agreed that much depends on just how much sunshine and how high temperatures get during mid-May. Overall, the panel says a late harvest is less likely than simply seeing lower yields produced.
For more details, listen to an audio excerpt of today’s update by clicking or tapping the LISTEN BAR below. The final wheat update webinar will air next Monday morning, April 23rd at 8:30 a.m. Click here to jump to a previous article with instructions on how to participate.
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