Industrial Hemp Tolerance to Flame Weeding
November 30, 2020
Hemp exhibited relatively good tolerance to heat from propane flaming. Temporary injury could be considered acceptable since it was only at the base of the plants and lasted only for about two weeks.
Industrial Hemp Tolerance to Late-POST Herbicides
November 18, 2020
Hemp exhibited high level of sensitivity to most of the tested herbicides. Visual injury levels ranged from almost no injury (~5%) with only one herbicide, to some temporary injury (~20%) with a few herbicides and severe injury or death (60%-93%) with about 10 out of 18 herbicides tested.
Industrial Hemp Tolerance to Early-POST Herbicides
November 11, 2020
Hemp exhibited relatively good tolerance to several products that can be used postemergence in industrial hemp. It is important to note that the conclusions are based only on one year of data. This study will be repeated in 2021 season.
USEPA Approves Three Dicamba Products for Five Years
October 29, 2020
On Oct 27, 2020, The United States Environmental Protection Agency (USEPA) announced a new 5-year registration for XtendiMax® and Engenia, and re-registered Tavium (a premix of dicamba and S-metolachlor).
Herbicide Resistance Risk Calculator: A New Resistance Management Tool
October 29, 2020
In order to calculate an herbicide resistance risk score, four years of crops need to be entered. Once herbicides are chosen for all four years and a weed species is selected, the model will calculate an herbicide resistance risk score for each herbicide site of action that was selected.
Common Mullein Control: Herbicide Choice and Application Timing
October 7, 2020
Effective weed control in range, pasture, and CRP depends on selectivity and timing. In selecting an herbicide for common mullein control, there are a lot of options.
Rejuvra™: A New Herbicide for Battling Cheatgrass
October 7, 2020
Rejuvra™ is a new rangeland herbicide product from Bayer that works differently from existing cheatgrass herbicide products. Rejuvra™ can provide control for more than a year after application.
Industrial Hemp Varieties Exhibit the Same Tolerance Level to PRE-Herbicides
October 7, 2020
Herbicides registered for in-season weed control in industrial hemp are scarce, or nonexistent. To help with this issue, a greenhouse study was conducted this summer at the University of Nebraska-Lincoln to test tolerance of three industrial hemp varieties to preemergence herbicides commonly used in corn and soybean.