Berries Production Guide

Cranberries
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Weeds

This section was updated - 30 December 2016

NEW PLANTINGS

Devrinol 10G
(10% napropamide)

Devrinol 50 DF or Devrinol DF-XT    (50 % napropamide)   

 

45 to 67 kg/ha
(18 to 27 kg/acre)

9.0 to 13.4 kg/ha (3.6 to 5.4 kg/acre)

  • For control of annual grasses including rice cutgrass and sedges Apply in late winter or early spring - fall application is prohibited. Irrigate to wet the soil to a depth of 10 cm if rain does not occur after treatment

Callisto 480SC
(480 g/L mesotrione)

Pre-emergent and early post-emergent

or

Late post-emergent

 

 

 

300 mL/ha
(120 mL/acre)

 

210 mL/ha
(84 mL/acre)
Add Agral 90 at 0.2% v/v
  • For control of lamb’s-quarters, red root pigweed, wild mustard and eastern black nightshade.
  • For suppression of vetch and creeping buttercup.
  • Make only one application per year at the 300 mL/ha (120 mL/acre) rate.
  • If using the post-emergent rate of 210 mL/ha (84 mL/acre), a second application may be made after at least 14 days to improve control of difficult weeds.
  • Apply in 200 L water/ha (80 L/acre) for pre-emergence application and in 100 to 200 L water/ha (40 t0 80 L/acre) for post-emergence application.
  • Use only ground boom equipment. Do not apply by air. Do not apply by hand.
  • Do not apply through irrigation equipment.
  • Do not flood within 60 days of treatment.
  • Do not apply directly to water or areas where surface water is present.
  • Do not apply if rainfall or sprinkler irrigation for frost protection is expected within 48 hours.
  • For non-bearing beds, apply between bud break and 60 days prior to fall or winter flooding. Do not harvest within 365 days of treatment.
Venture
(125 g/L fluazifop-p-butyl)
2.0 L/ha
(0.8 L/acre
  • For control of quackgrass and annual grasses.
  • Apply in 50 to 200 L of water per hectare (20 to 80 L/acre). Use highest volume for dense infestations.
  • Apply to actively growing grasses in the 2 to 5 leaf stage.
  • Do not apply more than once per season.
  • For use on non-bearing cranberries only Warning: Women capable of bearing children should avoid exposure to Venture L.
     

Poast Ultra
(450 g/L sethoxydim)

1.1 L/ha
(400 mL/acre)
  • For control of quackgrass and annual grasses.
  • Apply to actively growing grass that has 1-6 leaves.
  • Apply with the adjuvant, Merge, at a rate of 1% of water volume used.

Centurion or Select
(240 g/L clethodim)

0.19 to 0.38 L/ha       (.076 to 0.15 L/acre)

 

  • For control of annual grasses and quackgrass.
  • Apply to actively growing grass at the 2-6 leaf stage.
  • Apply the adjuvant, Amigo, at a rate of 0.5 to 1 % of water volume used.
  • Apply no more than once per year.



 

ESTABLISHED PLANTINGS: CROP TOLERANCE

Callisto 480SC (480 g/L mesotrione)

Pre-emergent and early post-emergent

or

Late post-emergent

 

 

 

300 mL/ha
(120 mL/acre)

 

210 mL/ha
(84 mL/acre)
Add Agral 90 at 0.2% v/v
  • For control of lamb’s-quarters, red root pigweed, wild mustard and eastern black nightshade.
  • For suppression of vetch and creeping buttercup.
  • Make only one application per year at the 300 mL/ha (120 mL/acre) rate.
  • If using the post-emergent rate of 210 mL/ha (84 mL/acre), a second application may be made after at least 14 days to improve control of difficult weeds.
  • Apply in 200 L water/ha (80 L/acre) for pre-emergence application and in 100 to 200 L water/ha (40 t0 80 L/acre) for post-emergence application.
  • Use only ground boom equipment. Do not apply by air. Do not apply by hand.
  • Do not apply through irrigation equipment.
  • For bearing beds, apply between bud break and fruit set.
  • Do not flood within 60 days of treatment.
  • Do not apply directly to water or areas where surface water is present.
  • Do not apply if rainfall or sprinkler irrigation for frost protection is expected within 48 hours.
  • Do not apply within 60 days of harvest.
Casoron G4
(4% dichlobenil)
90 to 110 kg/ha
(36 to 45 kg/acre)
(split treatment)
  • For control of grasses, sedges, broadleaved weeds and Bracken fern.
  • Apply in early spring as a split treatment, 2 applications 3 to 6 weeks apart for a total of 175 to 225 kg/ha (70 to 90 kg/acre).
  • Do not use on new plantings or newly sanded beds.
  • Temporary reddening of cranberry plants may occur if treatment is delayed until late spring.
  • Do not apply after plants start to bloom.
  • Use low rate on sandy soils and irrigate after application.

Devrinol 10G
(10% napropamide)

Devrinol 50 DF   (50 % napropamide) 

45 to 67 kg/ha
(18 to 27 kg/acre)

9.0 to 13.4 kg/ha (3.6 to 5.4 kg/acre)

  • See instructions under NEW PLANTINGS above.

Centurion or Select
(240 g/L clethodim)

0.19 to 0.38 L/ha             (.076 to 0.15 L/acre)

  • For control of annual grasses and quackgrass.
  • Apply to actively growing grass at the 2-6 leaf stage.
  • Do not apply between the hook stage and full fruit set
  • Apply no more than once per year.
  • Apply the adjuvant, Amigo, at a rate of 0.5 to 1 % of water volume used.
  • Do not apply within 30 days of harvest
Poast Ultra
(450g/L sethoxydim)
1.1 L/ha
(400 mL/acre)
  • For control of quackgrass and annual grasses • Apply to actively growing grass that has 1-6 leaves.
  • Apply with the adjuvant, Merge, at a rate of 1% of water volume used.
  • Do not apply within 60 days of harvest.
Agricultural Weedkiller #1 (100% mineral spirit) 3,500 to 16,000 L/ha (1420 to 6480 L/acre)
  • For control of cottontop and partial control of cloudberry apply 12,000 to 16,000 L/ha (4860 to 6480 L/acre) to infested spots prior to cranberry bud break.
  • For control of annual grasses, sedge, Bracken fern and broadleaved seedlings apply 3500 to 5000 L/ha (1420 to 2025 L/acre). Apply in March to early April before bud elongation and repeat as necessary.


ESTABLISHED PLANTINGS: WICK (WIPE-ON) TREATMENTS ONLY

Roundup
(356 g/L glyphosate)
20% solution (1 L / 4 L water)
  • For control of annual and perennial weeds growing above the crop.
  • Apply as a wipe-on treatment only after fruit set.
  • Do not contact cranberry leaves or fruit.
  • Avoid applications in the heat of the day.
  • Apply only once per year.
  • Do not apply Roundup formulations within 30 days of harvest. Note: The above rate is based on a formulation with 356 g/L glyphosate. There are many new formulations of glyphosate on the market with varying active ingredient concentrations. Be sure to check the label for application rate.
Lontrel 360
(360 g/L clopyralid)
2% solution (80 ml / 4 L water)
  • For control of vetch.
  • Application with wiper type equipment can be made in the fall at least 2 weeks after harvest (vines have winter dormancy colour), in the spring prior to budbreak or after budbreak to control late germinating weeds.
  • Apply no more than twice per year.
  • Avoid contacting cranberry leaves.
  • Do not apply within 60 days of harvest.
Nufarm 2,4-D
Amine 500
33% solution (2 L / 4 L water)
  • For control or suppression of annual and perennial broadleaved weeds including hardhack, St. Johnswort, alder and purple aster.
  • Apply with wiper type equipment to actively growing weeds in June or July.
  • Do not contact cranberry leaves.
  • Apply no more than once per year.
  • Do not apply within 50 days of harvest.

 

Viewing Section 5 of 7