CARROT


Weed Problem   Chemical   Pounds Active Ingredient (AI)/Acre   Amount of Commercial Product/Acre   Remarks and Limitations

Preemergence annuals   linuron
(LOROX 50DF)
  0.5-1  
1-2 lb
  PREEMERGENCE: Apply after seeding but before carrots emerge. Use low rate on light soils and higher rate on clay or muck,

  pendimethalin
(PROWL H20 3.8 ACS)
  0.95  
2.0 pt
  Apply after seeding as a broadcast treatment or at layby as a directed spray. Plant barley cover crop 7 days before application. Needs water for activation. 60 day PHI.

  prometryn
(CAPAROL 4L)
  0.5 - 1  
1 - 2 pt
  Caparol may stunt carrot. Use lowest rate on sandy soil. Do not exceed 8 pt/crop/year. 30 day PHI.

  s-metolachlor
(DUAL MAGNUM 7.62EC)
  0.48-1.9  
0.5-2.0 pt
  Mineral soil: 0.5-1 pt/acre. Muck soil: 1.3-2 pt/acre. Apply after seeding or at carrot 3-5 leaf stage. One application per crop. Wait 5 days after seeding barley before application. 64-day PHI. See: www.farmassist.com to obtain MI 24c indemnified label.

  trifluralin
(TREFLAN 4EC)
  0.5-1  
1-2 pt
  Mineral soil only. Apply before planting and incorporate 2-3 inches soon after spraying. Use low rate on sandy soils.

Postemergence broadleaves   linuron
(LOROX 50DF)
  0.75-1  
1.5-2 lb
  Broadcast after carrots are 3 inches high. Do not apply when temperature is above 85 F. Do not apply at pressure above 40 PSI. Do not mix with other pesticides or surfactants. Do not apply within 14 days of any other pesticides when carrots are under stress. Do not exceed 2 lb ai/acre/year. 14-day PHI.

  metrlbuzin
(TRICOR 75DF)
  0.25  
0.33 lb
  Broadcast when carrots have 5-6 leaves. Do not apply during cool, cloudy weather or when temperature is above 85 F. Do not mix with other chemicals. Do not apply within 14 days of any other pesticides when carrots are under stress. Do not apply more than once per season. 60-day PHI.

  prometryn
(CAPAROL 4L)
  0.75 - 1.0  
1.5 - 2 pt
  Make post applications through the 6 leaf stage of carrot. Addition of NIS will improve weed control but may increase carrot injury. Caparol will burn nutsedge. Maximum 8 pt/acre/year pre and post. 30 day PHI.

Postemergence grasses   clethodim
(SELECT MAX 0.97E)
  0.068-0.12  
9-16 fl oz
  Apply to actively growing grasses. Maximum 64 fl oz/acre/year. Include 0.25% NIS/acre. 30-day PHI.

  fluazifop-P
(FUSILADE DX 2E)
  0.16-0.19  
10-12 fl oz
  Apply to actively growing grasses. Do not apply more than 6 pt/acre/year. Include 1 qt COC or 1 pt NIS/acre. 45-day PHI.

  sethoxydim
(POAST 1.5E)
  0.19-0.47  
1-2.5 pt
  Apply to actively growing grasses. Include 1 qt COC/acre. Maximum total of 5 pt/acre. 30-day PHI.

Postemergence perennials   glyphosate
(ROUNDUP 4L)
  2-3  
2-3 qt
  Apply to emerged weeds before planting in the spring or after harvest. Apply between carrot rows as shielded or wiper application. 14-day PHI.