Control of Weeds
Japanese Knotweed is the most invasive plant in Guernsey. It spreads rapidly, especially next to streams and takes over native plants and flowers.
Information on Japanese Knotweed, specific information on the chemical control of Japanese Knotweed (for qualified spray operators) and the control of this plant in gardens (for amateur gardeners) can be downloaded below.
Honey Fungus or Armillaria is probably the most important killer of woody plants on the Island.
There has been some controversy in recent years about whether it is a serious parasite or a secondary invader. Honey Fungus used to be considered one species, Armillaria mellea, however recent research has shown that there are several species in the UK varying in their pathogenicity. Of the seven species found in Europe, some are highly parasitic causing serious plant disease whereas others are merely saprophytic living on dead wood
An information leaflet can be downloaded below.
The Noxious Weeds (Guernsey) Law, 1952 states that an occupier of land must not allow noxious weeds that are in flower or seed to grow on that land.
The noxious weeds specified in the law are Common Ragwort, Hemlock Water Dropwort, Spear Thistle, and Creeping Thistle.
A leaflet on noxious weeds can be downloaded below. It contains information on the control of these plants.
Document downloadsHoney Fungus Plant Protection Services Honey Fungus Leaflet Control of JKW in Gardens Control of Japanese Knotweed (Home and Garden Situation) Noxious Weeds Leaflet Noxious Weeds Protection of the Environment leaflet Japanese Knotweed Leaflet Japanese Knotweed Information Chemical Control of Japanese Knotweed Chemical Control of Japanese Knotweed (NPTC Qualified Spray Operators)
Plant Health InspectorPO Box 459, Raymond Falla House, Longue Rue, St Martins, GY1 6AF, Guernsey
Tel: +44 1481 234567 Fax: +44 1481 235015