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We have had a few calls about burcucumber over the last two weeks, but expect many more with the wet weather that has recently moved into the state. Burcucumber continues to raise its head in different areas of the regions of the mid-Atlantic and eastern cornbelt every year and is a particular problem during wet summers. Historically, this plant was a river bottom species that really does well in heavy soils that typically have good soil moisture.
Seedlings typically emerge in early May and will continue to germinate and emerge into late July or early August depending on the weather.
This prolonged germination period makes it very difficult to manage and particularly in corn where limited control can be accomplished once the corn becomes too big for post herbicide applications. This weed not only competes for limited resources but can make corn and soybean harvest very difficult due to his viney growth habit which can clog both choppers and combines.
We consider this weed the "poster child" for integrated management since it really requires multiple tactics to reduce the infestation and prevent weed-crop competition and harvest losses. Some of our standard management recommendations include,
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