Prism®

Prism^® is a GROUP B sulphonylurea herbicide (non-hormonal and non-volatile). Prism may be used with care in situations where a hormone type herbicide may cause unintentional damage through vapour movement. Prism^® should be applied to actively growing weeds during late spring to early autumn. Prism^® is rapidly absorbed into the foliage of plants and is translocated within the plant where it rapidly stops cell division. The symptoms in treated plants is a gradual reduction in vigour until plants die. It is effective on weeds such as gorse, blackberry, ragwort, thistles, sweet brier, matagouri, hawthorn, barberry, bracken, broom, manuka, tauhinu, fennel, horehound, inkweed, tutu, willows, wild ginger, old mans beard, privet and many broadleaf weeds.