Jon Scott - Weed Science Technologist

click to read Industrial Hemp Tolerance to Flame Weeding

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.

Read more

links to Industrial Hemp Tolerance to Late-POST Herbicides

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.

Read more

hemp showing minor herbicide injury

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.

Read more

links to Industrial Hemp Varieties Exhibit the Same Tolerance Level to PRE-Herbicides

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.

Read more

hemp showing herbicide injury

Industrial Hemp Tolerance to Soil-applied Herbicides

July 8, 2020
Nebraska legalized industrial hemp in 2019, which created much interest in researching various aspects of hemp production, including weed control. A recent study looked at hemp tolerance to 18 soil-applied herbicides commonly used for preemergence weed control in corn or soybean.

Read more

Impact of 2,4-D Micro-Rates on non-2,4-D Tolerant Soybean

January 16, 2020
Auxin type herbicides (eg. dicamba, 2,4-D) are an integral component of major cropping systems in North America. With the recent launching of Enlist E3 soybean in the U.S., in-season application of 2,4-D to soybean fields is expected to increase.

Read more

Soybean damage from application of micro-rates of dicamba pesticide.

Effects of Dicamba Micro-Rates on Yields of Non-Dicamba Soybeans

January 9, 2019
This study looks at the sensitivity of non-DT soybean types (Conventional, Liberty Link, and Roundup Ready) to micro-rate applications of Clarity, Engenia, and XtendiMax at several growth stages.

Read more

Corn yield loss as influenced by three herbicide treatments

Critical Time for Weed Removal in Corn and Soybean is Delayed by PRE-Herbicides

January 9, 2019
Understanding the critical time for weed removal in corn and soybean would not only ensure effective weed removal and minimize unnecessary weed control inputs, but could potentially help minimize the development of herbicide resistance in weeds.

Read more