Dock
Dock (Rumex obtusifolius) is a relatively common tap-rooted weed that in found throughout New Zealand, however because of its size it
Problem Overview
Dock (Rumex obtusifolius) is a relatively common tap-rooted weed that in found throughout New Zealand, however because of its size it is not common on lawns. Closely related species such as fiddle dock (Rumex pulcher) and sheep’s sorrel (Rumex acetosella) are likely to be more common in lawns. It has very large (up to 250mm long) wide, erect, round tipped leaved that are bright green in colouration.
Solutions
All turf types: Dock is controlled using a selective herbicide such as 2,4D & Dicamba (Banvine) applied at label rates. It is preferable to apply these products from September until May when the plants are actively growing.
Fine turf species will also be affected if these products are applied to lawns that are suffering from heat stress or moisture stress. In these circumstances it is advisable to apply fertilizer and irrigate for 7 - 10 days prior to application to ensure that the lawn is in a healthy state prior to spraying.
Other Similar Lawn Problems
Couch grass
Couchgrass (Cynodon dactylon) is a warm season creeping grass that is sometimes referred to as twitch or Indian doab.
Summer grass
Summergrass is a term used to describe a range of annual subtropical annual weeds the seeds of which are endemic in
Speedwell
There are four types of speedwell all from the Veronica family.
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