Weed Control

NOTE:  For the herbicides listed below, one product trade name and formulation is provided for each active ingredient (common name) as an example of rates, days to harvest (dh), REI, and special instructions. In many cases there are other products available with the same active ingredient. Please see Table 17 and Alphabetical Listing by Trade Name for more information on products with the same active ingredients. 

Stale Seedbed

glyphosate (Roundup 4S): 1 to 5 qt/A (REI 12h, Group 9). See Stale Seedbed Technique.

paraquat (Gramoxone Inteon* 2S): 2.0 to 4.0 pt/A (REI 12h, Group 22). See Stale Seedbed Technique.

pelargonic acid (Scythe 4.2): 3 to 10 gal/A (REI 24h, Group 27). See Stale Seedbed Technique.

Preplant Incorporated/Preemergence

bensulide (Prefar 4E): 5 to 6 qt/A (REI 12h, Group 8) Incorporate by shallow cultivation or irrigation. Grass control only; should be supplemented with cultivation or another registered herbicide for broadleaf control. Do not plant non-labeled crops to treated land for 120 days. Use with transplants only.

halosulfuron (Sandea 75 WSG): 1/2 to 1 oz/A (30 dh, REI 12h, Group 2). Apply between rows of eggplants for control of nutsedge and many broadleaf weeds. Will provide both preemergence and postemergence control of many weed species. Avoid contact of the herbicide with the planted crop. If plastic is used on the planted row, adjust equipment to keep the herbicide off the plastic. Reduce rate and spray volume in proportion to the area actually sprayed. See the label for other precautions and a list of weeds controlled.

napropamide (Devrinol 50DF): 2 to 4 lb/A (REI 12h, Group 15). Use lower rate on sandy soils. Incorporate thoroughly to a depth of 1”.

trifluralin (Trilin 4 EC): 1 to 2 pt/A (REI 12h, Group 3). Incorporate before transplanting. Disc twice immediately after spraying for satisfactory incorporation. Little or no control of ragweed, galinsoga, or nutsedge. Soil should be warm to avoid stunting.

Postemergence

clethodim (Select 2 EC): 6 to 8 oz/A (20 dh, REI 24h, Group 1). Apply to actively growing grasses. See label for grass height and herbicide rate. Always use a crop oil concentrate at a rate of 1 gal/100 gal spray mix. See both container label and supplemental label available from dealer.

paraquat (Gramoxone Inteon* 2S): 2.0 pt/A (REI 12h, Group 22). Apply as a directed and shielded spray to emerged weeds between rows of eggplant. Crop contact by the spray will cause severe injury or death.

pelargonic acid (Scythe 4.2): 3% to 10% (REI 24h, Group 27). Use a 3-5% solution for annual weeds (4-6 oz/gal water), a 5-7% solution for biennial and perennial weeds (6-9 oz/gal water), and 7-10% solution for maximum burndown (9-13 oz/gal water). Delivery rate for boom applications should be 75 to 200 gal spray solution/A; complete coverage of weed foliage is essential. Use a DIRECTED/SHIELDED SPRAY; contact with crop will cause injury. For hand-held equipment, spray to completely wet all weed foliage but not to the point of runoff. Repeat applications as necessary. Tank mixes are allowed with this product. These include tank mixes with glyphosate (Roundup), sulfosate (Touchdown), and residual herbicides. See label for complete details.

sethoxydim (Poast 1.53EC): 1 to 2 pt/A (20 dh, REI 12h, Group 1) postemergence. Apply with crop oil concentrate at 2 pt/A. Apply to actively growing weed grasses (see product label for susceptible stage of growth). Do not cultivate for five days prior or seven days after Poast application.