May 17, 2021
Soil residual herbicides require precipitation to activate
Salem County. Surface soil conditions are quite dry across much of the acreage planted in the last two weeks. While their is adequate moisture in the rooting zone for corn and soybean germination, without a half inch to inch of precipitation or irrigation, soil residual herbicides applied to manage herbicide resistant weeds and other annuals will be slow to activate. Monitor fields for signs of common lambsquarters and amaranth as air temperatures rise this week into the 80’s.
