Figure 1From: Aerial spot treatment using an oil carrier to apply ester based herbicides for control of Pinus contorta and P. nigra in New ZealandThe relationship between predicted percentage mortality and tree height by treatment for (a) P. contorta and (b) P. nigra . Predictions are shown across the height range represented in the dataset for each treatment. The two most effective treatments, 20 GOM 500 ml and 10G 20T, are shown, respectively, as dashed red and bold solid pink lines while the least effective treatment, 20G is shown as a bold dark blue line.Back to article page