Mouse-ear chickweed is a perennial weed that forms a dense mat in lawns and turf. It is also referred to as common mouse-ear,
It can spread quite quickly via seed and creeping runners as it out competes the grass, often leaving large bare patches when it has been controlled and removed.
It will tolerate heavy wear and close mowing, which makes it a major nuisance in fine turf. It has a shallow fibrous root system and is often found on compacted and wet sites, although it will tolerate drought conditions too.
The small fleshy leaves look like hairy mouse ears (hence the name mouse-ear chickweed).
The small white flowers have five petals, but the are very deeply cut or lobed and give the appearance of having 10 petals. The flowering periods is from May to October.
Mouse-ear chickweed will grow in most types of soil.
Hand removal can be quite effective as it is a shallow rooted weed. However take care to remove all the plant as it can regenerate if anything remains in the soil.
Encourage a healthy lawn with good turf care practices, such as regular feeding (keeps the lawn thick), aeration (to help relieve compaction) and irrigate when necessary to prevent this and other weeds.
Mouse-ear chickweed is easily killed using selective herbicides. One application should be enough, rarely is a second treatment required.
Mouse-ear chickweed images
Recommended herbicides for the control of mouse-ear chickweed
Professional products (All operators must be trained and certificated in using and applying any Ministry Approved professional product)
- ICL Enforcer (2,4-D, Dicamba, Mecoprop-p, MCPA)
- ICL Praxys (Fluroxypyr, Clopyralid, Florasulam)
- ICL Esteron (2,4-D, Furosulam)
- Barclay Holster (Fluroxypyr, 2,4-D, Dicamaba)
- Headland Quickfire (Mecoprop-p, Dicamaba)
- Headland Cabadex (Flurosulam, Fluroxypyr)
- Hygrass-P (Dicamba, Mecoprop-p)
- Hysward-P (Mecoprop-p, Dicamba, MCPA)
- Bayer Longbow (MCPA, Dicamba, Mecoprop-p)
- Mascot Junction Turf (Flurosulam, 2,4-D)
- Mascot Greenor (Fluroxpyr, Clopyralid, MCPA)
- Mascot Crossbar (Fluroxpyr, 2,4-D, Dicamaba)
Products available for non-professional use (These products are available from garden centres and DIY stores and do not require any training or certification for use and application.)
- Weedol Concentrate (Fluroxypyr, Clopyralid, MCPA)
- Vitax lawn Clear (Clopyralid, 2,4-D, MCPA)
- Resolva Lawn Weed Killer (Mecoprop-p, Dicamba)
Tips for successful weed control using selective herbicides
- Treat weeds when growth is strong, this is usually in May and June.
- Don’t mow the lawn 3 days prior and 3 days after the treatment, to allow for maximum uptake of the chemical.
- Spray when the leaf/foliage is dry, as this reduces runoff and allows the chemical to stick to the weed.