Scentless chamomile


Names

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Scientific Name

Matricaria maritima

Biology

Description


Overview


Scentless chamomile is an annual to short-lived perennial that spreads rapidly if not controlled and can cause significant crop losses. If allowed to overwinter, the plant will emerge as a more competitive resilient strain of weed, enhancing its difficulty of control. Scentless chamomile can vary in height from 15-100 cm and as its name indicates, is scentless. It grows erect and branches out, resulting in a bunchy-like plant at the middle regions.


Main description


Seedling
The cotyledon of the scentless chamomile has a distinct egg shape and is sessile (a lack petioles, which is connection between leaf and main stem) – all key features to help separate scentless chamomile from other broadleaf weeds.

 

Mature plant
The leaves are alternating and dark green in colour, measuring 3-6 cm in length. The Flowering heads are found terminally and are large in size with yellow florets. Its root system is very dense with high amounts of branching giving it a firm anchoring system. Its key defining feature is the daisy flower.


Optimal growth conditions


Scentless chamomile is commonly found in conditions with soils of lower pH, and ample water and nutrient supply. It also prefers warmer conditions.

Occurence

Crops

  • Barley
  • Canola
  • Corn
  • Oats
  • Wheat
  • Tomatoes

Control

Chemical Control

Products that control

  • Buctril M
  • Liberty 150

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