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Paul O. Johnson Retires After Dedicated Career in SDSU Extension
June 08, 2022
Paul O. Johnson, SDSU Extension Weed Science Coordinator and Northeast Research Farm Coordinator, is retiring after a dedicated 33-year career supporting the people of South Dakota in his role at SDSU Extension.
Prickly Russian Thistle
Publications that provide introductory and expanded information on the notorious invasive plant, prickly Russian thistle.
Spring Dandelion Control In Soybeans
Dandelion has become much more of a problem as farming practices have changed. Less tillage and increased use of glyphosate resistant crops along with reduced use of residual herbicides have allowed some perennial weeds such as dandelion to prevail.
Want a Premium Price? Weed Control In NON-GMO Soybeans
Many emotions set in on farmers that hear the word “non-GMO”, but it could help them in times like today when prices are low for many farm products in South Dakota.
SDSU Research Shows Effects Of Volunteer Corn In Corn And Soybeans
In 2007, researchers at South Dakota State University indicated that volunteer corn is much less competitive in corn than soybean. The South Dakota study (Alms et al. 2007) evaluated the full season effect of a range of volunteer corn densities (800-14,000 plants/acre) on both corn and soybean and reported yield losses that ranged from 0% to 13% in corn and 0% to 54% in soybean.
Woody Weeds: Tatarian Honeysuckle
Tatarian honeysuckle (Lonicera tatarica) was brought to North America from Asia in the mid-18th century for ornamental uses. In South Dakota it was also used as a windbreak species until the 1980s.
Check Fields for Palmer Amaranth
Palmer amaranth, is an aggressive weed from the pigweed family, which has been reported with increasing frequency in recent years around Central South Dakota.
2020 State 4-H Event Cancellation List
This list aids planning and decision-making for 4-H member families and volunteers in light of the ongoing COVID-19 pandemic.
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.