Category Archives: Corn

Ryegrass and Poa Management in Corn

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Ryegrass escaping glyphosate plus dicamba burndown

Clearly this year,  many are having trouble managing ryegrass and poa.  Questions began months ago and continue today and have ranged from tactics to burn them down before planting to how to control them in a standing corn crop. What has become abundantly clear is that glyphosate is no longer an effective burn down option for either species across much of the state. Continue reading

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Destroying a Poor Stand of Corn and Replanting Back to Corn

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There was very little early corn planted this spring.  The corn that was planted has been subjected to significant cold and wet conditions which increase the probability that some of it may need to be replanted. Hopefully no one will need this information, but if so there are several options to control a thin corn stand and replant back to corn. Continue reading

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Late Burndown in Corn

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Sprayers are rolling across Tennessee. Most are trying to catch up as we are well behind the burndown pace of many Tennessee springs. Typically by late March we have a good bit of corn ground burned down and often have a few acres planted. The current 10 day forecast calls for a good chance of rain just 2 days out of those 10.  Regardless of whether the forecast is accurate or not, corn burndown and planting will have to occur fairly close together. Continue reading

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Clethodim and Managing Glyphosate-Resistant Grasses

Clethodim is quickly replacing glyphosate as the “go-to” herbicide for grass control in West Tennessee.  It began a few years ago as folks found that ryegrass and poa in many fields could no longer be controlled with glyphosate.  In more recent years the pace has accelerated as the spread of glyphosate-resistant (GR) summer grasses like goosegrass, jungle rice and Johnsongrass have made it necessary to add clethodim to glyphosate to “prop up” the grass control. Continue reading

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