Aerial spot treatment using an oil carrier to apply ester based herbicides for control of Pinus contorta and P. nigra in New Zealand

New Zealand Journal of Forestry Science

Table 1 Herbicides, carriers, active ingredients and application volumes used for both trials to control P. contorta and P. nigra by means of aerial spot application into the tree crowns

Treatment	Herbicide	Carrier	Active ingredient tree^-1	Volume tree^-1(mL)
Para. oil		100% Paraffinic (Para.) oil		1000
10 G	10% Grazon	90% Para. oil	60 g Triclopyr	1000
10 G 20 T	10% Grazon + 20% Tordon	70% Para. oil	120 g Triclopyr	1000
10 G 20 T	10% Grazon + 20% Tordon	70% Para. oil	20 g Picloram	1000
20 G	20% Grazon	80% Para. oil	120 g Triclopyr	1000
20 G GO	20% Grazon	80% Genera oil	120 g Triclopyr	1000
20 G OM 1 litre	20% Grazon	79% Para. oil + 1% Oil mate	120 g Triclopyr	1000
20 G OM 500 mL	20% Grazon	79% Para. oil + 1% Oil mate	60 g Triclopyr	500