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Updates every hour. Last Updated: 29-Oct-2025 14:11 ET (29-Oct-2025 18:11 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.