Root Decline is an ERI (ectotrophic root-infecting) fungal disease that can affect all warms season turf grasses but is a key pest of couch grasses. Root decline is also known as Take-All Root Rot.
The symptoms of root decline can be seasonally recurring and difficult to control.
What are the Symptoms of Root Decline?
Symptoms of root decline include:
Irregular shaped, chlorotic patches from 20cm to 1m in diameter. Patches once established continue to spread throughout the year and may enlarge to reach a diameter of 5m or more.
Patches of infected turf eventually die back with foliage turning tan to dark brown. Affected patches do not usually heal rapidly and the centres are invaded/ colonised by weeds.Â
New shoots may recolonise infected areas but soon become infected and die back.
Roots, rhizomes and stolons turn off white to dark brown in colour.Â
Dark black hyphae can be visible on root tissue as the fungus begins to colonise the root system.
Root length and density is compromised as roots die off and become black.Â
Less severely infected tissues often bear dark strands of mycelium oriented primarily parallel to the root axis.
Headway Maxx combines the strength, longevity and broad spectrum of Heritage Maxx with the speed and early curative action of Banner Maxx in an unbeatable combination.
Dedicate turf fungicide contains two active ingredients with two different modes of action, providing curative and preventative control. It has a contact and systemic action in turf which provides broad spectrum control.
