By Stephanie Karhoff (OSUE Williams County) and Chris Zoller (OSUE Tuscarawas County)What are the most troublesome weed species in Ohio soybean fields? OSU Extension Educators sought to answer this question by surveying an estimated 204,641 soybean acres as part of the annual Fall Soybean Weed Survey.Since 2006, OSU Extension has recorded weed escapes in soybean fields across the state to monitor weed population shifts and potential for herbicide development.