Weeds & Invasive Plants
All Weeds & Invasive Plants Content

Soybean Production: Cost-effective pest management practices
Chemicals were one of the most expensive individual costs in soybean production, behind only to seed in the non-land cost category. The average cash-rent soybean production farms incurred a crop chemical cost of $39/ac in 2015, an 88% increase from 2010.

All Straight Dicamba Products Now Restricted Use in South Dakota
Starting April 30, 2018 all dicamba products that are not a mixture but instead straight dicamba are restricted use in South Dakota. This will mean all applicators will need to keep spray records of use and place of application.

Alternatives to Postemergence Dicamba Applications
Cancellations of three dicamba labels on June 6, 2020 by the U.S. Environmental Protection Agency, left many farmers looking for options for effective weed control this summer.

Removing Mature Shelterbelts From Grasslands
Under what circumstances would removal of mature shelterbelts be warranted? This is a common question often asked in wildlife and conservation circles.

UPDATE: The Environmental Protection Agency Provides Further Guidance Regarding the Previous Suspension of All Sales and Application of Dicamba Products
June 10, 2020
On June 3, the United States Court of Appeals for the Ninth Circuit issued a decision to vacate the registration of three dicamba products including Xtendimax, Engenia, and FeXapan for over the top use on soybeans.

South Dakota Department of Agriculture Suspends All Sales and Application of Dicamba Product
June 08, 2020
On June 3, the United States Court of Appeals for the Ninth Circuit issued a decision to vacate the registration of three Dicamba products including Xtendimax, Engenia, and FeXapan for over the top use on soybeans.

SDSU Extension Provides Leafy Spurge and Noxious Weed Management Recommendations
May 22, 2020
One of the many challenges producers face each year is weed control. Leafy spurge, in particular, can be difficult to manage.

Changes in Pesticide Applicator Certification During COVID-19
April 27, 2020
Due to office closures as a result of COVID-19, commercial pesticide applicator testing is currently unavailable at the SDSU Extension Regional Centers and county offices.

Fall Noxious Weed Control
Fall weed control can give the best weed control, but it also can be a poor time. If the noxious weeds were sprayed or clipped earlier this summer, and there is good weed growth now, this would be an excellent time to spray these weeds and get a good kill.

What to Do With Unusable Home and Garden Pesticides
As a gardener or homeowner, you may be wondering what you can do with your leftover pesticide products (including herbicides, insecticides, and fungicides), or maybe you bought a new home and the garage or basement is full of mysterious containers with no labels. If products are stored in garages or other areas with a lot of temperature changes, these products may become entirely unusable. So what to do?