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Agronomy Talk

N. INDIANA - DENNY COBB, CPAG

Marestail Management in 2017

Published on Friday, September 23, 2016

Early fall is mostly pre-harvest time in my area. We can evaluate the past growing season and consider possible changes to our operations. One of the most commonly discussed programs this summer has been
the LibertyLink® system for 2017. Marestail, waterhemp, and ragweed are the three escape, problem, or herbicide-resistant weeds this year. Many discussions have been held because of early spring burndown
failure followed by disappointing efforts with in-crop glyphosate spraying attempts. Marestail management begins post-harvest this fall with 2,4-D to control the second flush followed by the use of metribuzin in the spring of 2017. Because it’s a later emerging weed, waterhemp warrants the use of metolachlor plus Liberty® post sprayed. Ragweed issues come mainly from escapes in the previous corn crop. Acetochlor and atrazine are good choices for 2017.

I would venture to guess that 40 percent of the soybeans raised in northern Indiana and Michigan are LibertyLink. A large portion of glyphosate-tolerant acres will be switched to LibertyLink acres in 2017 because farmers are growing tired of poor weed control. Your Beck’s representative is ready to assist you in planning for a weed-free, high-yielding 2017 soybean crop! 

Author: Denny Cobb

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