Creeping knapweed

Yield loss

• It has high allelopathic activity, and this helps it crowd out other species.
• The seeds of this weed give flour a bitter taste.

Life form

If daughter plants are not separated from the parent plant during tillage on arable land, natural separation in root-suckering weeds usually occurs after 3–5 years, and in this weed even later.

Favourable conditions

It is a xerophyte, a plant of the dry steppes. It grows in arid places and withstands soil and atmospheric drought for a long time.

Where it is found

In the Steppe, it is widespread in maize crops on irrigated land.

Every fact rests on a quote from its source, and each quote was checked against the page it is printed on.

1. EPPO Global Database · European and Mediterranean Plant Protection Organization
2. Прогноз фітосанітарного стану агроценозів України та рекомендації щодо захисту рослин у 2025 році · Держпродспоживслужба, НААН, НАН · p. 243
3. Зуза В. С., «Гербологія», монографія, 468 с. · Харківський державний біотехнологічний університет; Харків: Стиль-Издат, 2022 · p. 15, 17, 42, 83
4. Photos: Jason Eckberg, iNaturalist, CC BY 4.0 · Stan Shebs, Wikimedia Commons, CC BY-SA 3.0 · Jon Sullivan, iNaturalist, CC BY 4.0