Spartan®, a Group 2 Herbicide, Controls Several Hard-to-kill Weeds in Lowbush Blueberries
DuPont™ Spartan® herbicide, a Group 2 herbicide, controls several hard-to-kill weeds in lowbush blueberries, including bunchberry, bracken fern, speckled alder, wild rose and yellow loosestrife.
For control of bunchberry, apply DuPont™ Spartan® herbicide at the 16 g/ac (40 g/ha) rate.
Apply post-emergent when the majority of the emerged bunchberry plant leaves have unfolded to form a 45° angle but no later than when the first white are visible on the most advanced plants. Or, a fall application can be made one (1) to four (4) weeks after the completion of harvest.
For control of bracken fern, speckled alder, wild rose and yellow loosestrife, mix 0.25 grams of Spartan® herbicide per litre of water as a spot treatment. Application should be made in mid-summer of the pruning year (vegetative year) of the crop to fully expanded foliage of bracken fern and yellow loosestrife. Wild rose and speckled alder may also be controlled by early fall applications. Stunting and reduction of fruit buds may occur if the crop is sprayed directly.
Spartan® herbicide must be applied with a registered non-ionic surfactant
(NIS) such as Agral® 90 at 2 L per 1000 L of spray solution (0.2% v/v).
One bottle contains 160 gm of product.
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