Episode 15

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Published on:

6th Oct 2020

Fall Weed Control with Dr. Joe Ikley

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Dr. Joe Ikley is an Extension Weed Specialist at North Dakota State University and joins us to explain why fall weed control is crucial to best crop management. His extension responsibilities there include weed control on all row crops except for sugar beets and potatoes. 


“We do just want to emphasize as many ways as we can that these weeds will be easier to control this fall than they will be in the spring…. Taking advantage of these weeds that are up now and killing them off before they go into winter is one of the best things we can do to prepare us for 2021.” - Dr. Joe Ikley


“Horseweed was one of the first weeds, the first weed in the US, to start taking advantage of overuse or over-reliance on glyphosate.” In crops like corn or soybeans we are able to apply a second herbicide in the spring if needed but with pulse crops that is not an option. This makes identifying and treating the weed when it germinates in the fall vital to maintaining weed control into the spring for pulse growers. Despite glyphosate resistance, Dr. Ikley still sees value in its use.


“Pulse crops have much longer rotation restrictions with the herbicides that we apply. But there’s still several that we can use in the fall that are pretty effective on the weeds that we’re dealing with. So for those grasses that we’re dealing with, its still going to be glyphosate.” - Dr. Joe Ikley


He goes on to suggest different additions, such as 2,4-D or Valor, that you can add to your fall spraying that will help to manage resistant weeds.  Dr. Ikley has seen as much as 90% control of kochia in the spring by treatment with Valor in the fall. He does recommend careful reading of labels to make sure any additions or herbicides used comply with producers plans for any pulse crop planting.


This Week on Growing Pulse Crops:

  • Meet Dr. Joe Ikley an Extension Weed Specialist at North Dakota State University
  • Explore the effects of fall weed control on spring weed control programs
  • Learn what protocols are available for pulse crop application and what new research is coming out that will be of benefit  


Growing Pulse Crops Podcast is hosted by Tim Hammerich of the Future of Agriculture Podcast.



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About the Podcast

Growing Pulse Crops
The science and business of farming field peas, chickpeas, and lentils
Join us as we follow pulse crop farmers through the growing season and dive into the research that’s helping them through some of the challenges they face. We’ll also talk to a number of other industry stakeholders along the way.

Demand for these nutrient-dense, high-protein foods continues to grow. There is also interest from farmers to include more pulses into diverse rotations for benefits like nitrogen fixation and soil health.

But the industry continues to face challenges, and we are eager to address these head on. So if you’re a pulse grower or in any way interested in these important crops, hit subscribe and stay tuned for future episodes. We’ll be back with plenty of information about challenges pulse farmers are facing throughout the U.S. and what solutions are working.

Brought to you by the Pulse Crops Working Group with support from the North Central IPM Center and USDA NIFA.

About your host

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Tim Hammerich

I share stories about agriculture, agtech, and agribusiness on podcasts and radio.