Strawberry and Raspberry Pest Management in Wisconsin

Table 8. Weed management for strawberries (continued)
Timing Commercial product, rate/acre Active ingredient, rate/acre Remarks
NONBEARING BEDS (continued)
Late fall
(Oct. 15–Nov. 1)
BEARING BEDS
Chateau WDG, 3 oz flumioxazin, 0.096 lb Apply in late fall after strawberry plants are fully dormant. This
treatment should provide control through harvest the following
year. You must have the supplemental label in your possession
at application. See label for maximum annual use rate.
Dacthal W-75, 8.0–12.0 lb DCPA, 6.0–9.0 lb Preemergence. Best applied in early spring or late fall. Can
be lightly incorporated with irrigation, rainfall, or tillage. Most
active against annual grasses.
Devrinol
10G, 40.0 lb; or
50DF, 8.0 lb
napropamide, 4.0 lb Preemergence. A fall application should provide weed
control until after fruit production the following year. Devrinol
is inactivated by sunlight (ultraviolet), so field must receive
1/2 inch of irrigation or rainfall within 24 hours of treatment.
Devrinol may inhibit runner rooting.
*Gramoxone Inteon, 2.0 pt paraquat, 0.5 lb Postemergence. Apply by directing spray between the rows
using shields to prevent contact with the crop. Do not allow
spray to contact strawberry plants or fruit as injury or
excessive residues may result. Do not exceed three
applications per year.
Sinbar 80WP, 2.0–4.0 oz terbacil, 0.1–0.2 lb Preemergence. Individual application and maximum annual
use rates vary by soil type and application timing. See label
for details. Apply before putting on winter mulch.
See comments on Sinbar above.
Prowl H 2O, 1.5–3.0 pt pendimethalin,
0.7–1.4 lb
Early spring 2,4-D amine 2,4-D (rate varies
by label)
May be applied during fall or winter dormancy, prior to onset
of new seasonal growth. Do not apply if new seasonal growth
(leaves) have emerged or are exposed. Use rate varies by soil
type. Do not exceed 6.0 pt/a per season. Do not apply within
35 days of harvest. Stunting, reduced growth, or reduction in
daughter plants may occur with this use. Supplemental label
expires December 31, 2009.
Postemergence. Apply before the strawberry plants have
made much new growth if dandelions are present in great
numbers. Choose a nonwindy day for this application. Use low
pressure and large droplet size to minimize herbicide drift.
Temporary distortion of strawberry plants may occur.
Chateau WDG, 3 oz flumioxazin, 0.096 lb Preemergence. Treat in early spring to fully dormant strawberry
plants to prevent crop injury. Should provide control
through harvest. Rotate with other chemistries at renovation.
You must have the supplemental label in your possession at
application. See label for maximum annual use rate.
Dacthal W-75, 8.0–12.0 lb DCPA, 6.0–9.0 lb Preemergence. Best applied in early spring or late fall. Can
be lightly incorporated. Most active against annual grasses.
Devrinol
10G, 40.0 lb; or
50DF, 8.0 lb
napropamide, 4.0 lb Preemergence. If either Devrinol or Sinbar was applied in the fall,
don’t use additional herbicides in the spring. If neither product
was applied in the fall, an application may be made
immediately after mulch removal in the spring. Because this
herbicide is inactivated by sunlight (ultraviolet), the treated
field must have 1/2 inch of irrigation or rainfall within 24 hours
after treatment. This treatment should give full-season control
of most annual weeds. Runner rooting may be inhibited.
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