The anticipated increase in dicamba and 2,4-D use associated with XtendTM and EnlistTM crops will require enhanced stewardship to prevent problems with off-target movement. While many factors influence herbicide drift, high wind speeds pose the greatest threat of moving herbicides off the intended target.
Weather conditions this past week (April 13-17) kicked off corn planting for many farmers throughout the state. As soil temperatures rose above 50°F towards the end of the week, farmers were able to dive into fieldwork and planting corn.
See statewide planting progress and field conditions across Iowa here.
As daily high temperatures increase into the upper 70s-80s F range, mid-day relative humidity frequently drops below 50 percent. This article takes a look at the effect of temperature and humidity on pesticide drift.
