Slime mold metabolites are a promising, eco-friendly repellent of root-knot nematodes
Peer-Reviewed Publication
Updates every hour. Last Updated: 19-Oct-2025 21:11 ET (20-Oct-2025 01:11 GMT/UTC)
Root-knot nematodes cause widespread damage to crops, but chemical pesticides that control them also severely harm soil fertility. Soil-dwelling slime mold secretes compounds that repel these nematodes, but their specific nature was unknown. Using novel culturing techniques, researchers have identified 14 compounds of high potency in repelling nematodes, paving the way for the development of non-toxic control methods.
Nasonovia ribisnigri is a destructive aphid that feeds on outdoor lettuces. This new analysis finds that populations in England are divided sharply between the east and west of the country. This suggests that the pest’s movements are strongly tied to lettuce-growing regions and it may not spread as widely as previously thought.
The U.S. has traditionally been an agricultural powerhouse with a healthy trade surplus. But global dynamics are changing due to a confluence of political and economic factors. U.S. agricultural imports now exceed exports, and the trade deficit is projected to worsen in the coming years. In a new study, researchers from the University of Illinois Urbana-Champaign and Texas Tech University discuss recent developments affecting the U.S. trade in row crops such as corn, soybeans, wheat, and cotton.
Christopher Sneed, an associate professor and consumer economics specialist in the Department of Family and Consumer Sciences (FCS) at the University of Tennessee, has received the 2025 Excellence in Extension Award for an individual.
The prestigious national award was presented at the recent Association of Public and Land-grant Universities (APLU) Conference by the USDA National Institute of Food and Agriculture (NIFA), Cooperative Extension and the APLU. The award recognizes one Cooperative Extension professional who has demonstrated outstanding scientific programming, visionary leadership and positive community impact.
Engineering students developed an AI-powered irrigation solution rooted in intelligence, earning them first place in the “Building a Better Future Through Business and AI” competition.