Alternative herbicides to 2,4,5‐T for gorse control

Abstract Foliar herbicides were applied by a motorised knapsack sprayer with ultra low volume (ULV) attachment to gorse ( Ulex europaeus L.) of height 10–50 cm in June, October, and February, and to gorse of height 30–100 cm in February. The effectiveness of the herbicides were: triclopyr and a mixture of triclopyr + picloram equal to or better than 2,4,5‐T; glyphosate + picloram equal to 2,4,5‐T; mixtures of 2,4‐D with picloram or with dicamba equal to or less than 2,4,5‐T. Two trials with soilapplied hexazinone at rates up to 2.0 g/plant resulted in poor control of plants of height greater than 100 cm, and good control of small plants.