A 4-inch layer of bark or sawdust mulch, or a combination of
the two, greatly aids in weed control. Additional weed suppression maybe
achieved by using commercial landscape fabric under mulch. Cultivation should be
minimized because the root system is very shallow in currants and gooseberries.
Grasses can be planted between rows to minimize weeds within the planting.
Mulches and herbicides are generally applied in a 4-foot band under the row.
Consult Tables 2.8.1 and 6.3.1 for herbicide selections.
Table
6.3.1. Herbicides registered for use on Ribes in New
York State.
Herbicide
Formulation
Amount of
product per treated acre
lb active
ingredient
carfentrazone-ethyl
Aim EC
1 2 fl oz
0.016 0.031
Aim EW
May be
applied as broad cast application during dormant stage of crop. Use as
directed application for post-emergence weed control. Use lower rate for control
of small weed seedling (2-3 leaf stage); use higher rate for control of
larger weeds (up to 6 leaf stage). Applications beyond 6 leaf stage may result in only partial control. Requires NIS or
COC2.
*glyphosate IPA plus carfentrazone-ethyl
*Rage
20 40 fl oz
0.78 1.56
May be
applied as broad cast application during dormant stage of crop. Use as
directed application for post-emergence weed control. Use lower rate for control
of small weed seedling (2-3 leaf stage); use higher rate for control of
larger weeds (up to 6 leaf stage). Applications beyond 6 leaf stage may result in only partial control. Applications
should not be made within 6-8 hours or rain, irrigation, or heavy dews to
avoid significant crop response. Do not allow spray mist to contact green
stem tissue, desirable fruit, blooms or foliage. Requires NIS or COC2.
napropamide
Devrinol 50DF
8 lb
4
Apply in
late fall or early spring before seedling weeds emerge. Incorporate within 24
hours of application with either cultivation or water. May be applied to
newly planted and established crops.
oryzalin
Surflan AS
2 6 qt
2 4
Surflan DF
2.4 7.1 lb
2 6
Apply to both bearing and
nonbearing plants before weed emergence. Rain or irrigation is needed within
21 days after application.
glufosinate-ammonium
Rely 200
77 fl oz (weeds
< 8inches)
115 fl oz (weeds
> 8 inches)
1.00
1.50
Controls a broad spectrum of emerged annual and
perennial grass and broadleaf weeds, and certain woody species. Apply as a broadcast,
banded or spot treatment application depending on the situation. Avoid direct
drift onto desirable vegetation. Do not apply more than 230 fl oz/A per year.
Do not graze, harvest and/or feed treated cover
crops to livestock.
glyphosate1
Roundup Original
4L (1qt)
1 - 4
Preplant or wiper
applications only. Do not contact foliage.
*paraquat
*GramoxoneInteon
2 4 pt.
0.5 1.0
Spray on emerged weeds in a minimum of 50 gal/A, with
NIS or COC2. Apply in early spring before new canes emerge. Apply
as a coarse spray to avoid crop injury from fine mist spray.
pelargonic acid
Scythe
3 - 5% solution for
annuals
5 - 7% solution for
perennials
7 - 10% solution for
maximum burn down
2.25 20 gal
Apply before new canes emerge in spring or after canes
become woody. Do not contact desirable foliage.
1Other glyphosate products
may be labeled for the same purposes.
*Restricted-use
pesticide; may be purchased and used only by certified applicators or used by
someone under the direct supervision of a certified applicator.
NOTE: Herbicides are usually sprayed in a 3 4 foot band under the plants. Read the label.
