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

Emerged weeds before crop emergence   paraquat
2 pt
  Apply before transplanting or before or after seeding but before crop emergence. Include 1 pt NIS/100 gal. RUP.

Preemergence   fomesafen
1 pt
  Apply to soil surface before transplanting. For production on plastic, apply before laying plastic. Plants may be set immediately after laying plastic. Use once in 2-years. Observe rotation restrictions. 70 day PHI. See: to obtain Michigan 24c indemnification label.

0.5-1 oz
  For plastic production: Apply to soil and then lay plastic. Plant after 5 days. Bareground production: set transplants and wait 14 days to apply over transplants.30 day PHI.

0.33-0.66 lb
  TRANSPLANTED. Apply before transplanting and incorporate 2-3 inches into the soil. Usually used in combination with trifluralin to improve preemergence broadleaf control.

2-4 lb
  SEEDED OR TRANSPLANTED. Apply before planting and incorporate 1-2 inches. Use low rate on light, sandy soils.

(PROWL H20 3.8 ACS)
1-3 pt
  Apply preplant incorporated or to soil surface before transplanting, or as a directed application after planting. Do not apply over the top of transplants. Needs water for activation. 70 day PHI.

1-2 pt
  Apply and incorporate, or apply to soil surface before transplanting, or apply as directed spray to soil after transplanting. May be applied under plastic. Use low rate on sandy soil. Dual may stunt tomato under cool, wet conditions. 90-day PHI.

  0.07 - 0.25  
2.25 - 8 fl oz
  Apply before transplanting for control of groundsel, lambsquarters, ladysthumb, nutsedge, wild buckwheat. Use low rate on sandy soil with pH >7.0. Do not use on sand with <1% OM.

Postemergence broadleaves   halosulfuron
0.5-1 oz
  POSTEMERGENCE: apply broadcast or directed to row middles to kill small weeds. Include 1 pt NIS/acre. Weak on nightshade. Maximum 2 oz/acre/year. 30-day PHI.

0.33 lb
  SEEDED OR TRANSPLANTED: Apply as a postemergence directed or broadcast spray to kill emerged broadleaves and extend preemergence control. Apply 0.33 lb product after tomatoes have 5-6 leaves. Apply after 3 warm, sunny days. Do not tank mix or spray within 1 day of other pesticides. Allow 14 days between applications. Use a maximum of 1 lb ai/acre/year pre- and postemergence. 7-day PHI.

2 oz
  Apply to weeds less than 1 inch tall. Include 0.5 pt NIS/acre. Does not control nightshade. 45-day PHI.

Postemergence emerged weeds   paraquat
2 pt
  Use shields to protect crop. Apply in 20-30 gal water/acre. Do not exceed 30 PSI pressure. Do not allow spray to contact crop foliage. Maximum 3 applications per year. 30-day PHI. RUP.

Postemergence grasses   clethodim
9-16 fl oz
  Apply to actively growing grasses. Include 0.25% NIS. Maximum 64 fl oz/acre/year. 20-day PHI.

(POAST 1.5E)
1-1.5 pt
  Apply to actively growing grasses. Include 1 qt COC/acre. Maximum of 4.5 pt total/acre. 20-day PHI.

Emerged perennials   glyphosate
2-3 qt
  Apply to emerged weeds before planting the crop. Wait 3 days before planting. Check label for correct rate for each weed.