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Page 14 2021 Logan County Farm Outlook LINCOLN DAILY NEWS March 18, 2021 Giant Ragweed Common Waterhemp of small viable seeds” which “can remain dormant in the soils and germinate years later.” Palmer Amaranth can have multiple negative impacts since it “has the potential to spread to agricultural fields, can be very difficult to control, can significantly increase production costs, and may reduce crop yields due to competition.” The impact of these invasive plants can be costly. Lisa Schlessinger and A. Bryan Endres of the University of Illinois said, “It is estimated that annual costs attributed to invasive plant species in the U.S. approach $25 billion.” Aside from “costs associated with harm to agricultural lands,” Schlessinger and Endres also say, “invasive plant species displace and threaten native plants, changing the biodiversity and ecology of the state.” Invasive plants consume nutrients meant for crops, block sunlight, and compete for space. According to the U.S. Forest Service, “Invasive plant seeds are often distributed by birds, wind, or unknowing humans, allowing seed to move great distances. Some invasives have aggressive root systems that spread long distances from a single plant.” If invasive plants are causing problems, producers need to figure out ways to prevent spread. In a publication on the management of invasive plants, Tricia Bethe, Christopher Evans, and Karla Gage say, “The best way to prevent the spread of invasive plants and pests is to avoid introducing Ivy Leaf Morning Glory Palmer Amaranth Continue 4