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2009 Weed Control Guide
for Vegetable Crops
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CROP INFORMATION
Asparagus
Beans
Beets
Broccoli
Brussels Sprouts
Cabbage
Carrot
Cauliflower
Celery
Chicory
Chinese Vegetables
Collards
Corn
Cucumber
Dill
Eggplant
Endive
Escarole
Garlic
Horseradish
Kale
Kohlrabi
Leek
Lettuce
Mint
Muskmelon
Mustard
Okra
Onion
Parsley
Parsnip
Peas
Pepper
Potato
Pumpkin
Radish
Rhubarb
Rutabaga
Spinach
Squash
Strawberry
Sweet Potato
Swiss Chard
Tomato
Turnip
Turnip Greens
Watermelon
Non-crop Land
MINT
| Weed Problem | Chemical | Pounds Active Ingredient (AI)/Acre | Amount of Commercial Product/Acre |
Remarks and Limitations Items in bold have changed since the printed bulletin. |
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| Preemergence for control of emerged weeds | paraquat (GRAMOXONE MAX 3L) |
0.49-0.75 | 1.3-2 pt |
Apply before mint emerges in the spring for control of emerged weeds. Tank mix with a residual herbicide. | ||||
| Preemergence annuals | clomazone (COMMAND 3ME) |
0.5 | 1.3 pt |
Apply before mint initiates active growth in the spring. Observe rotational restrictions on label. 84-day PHI. Controls white campion (cockle). | ||||
| flumioxazin (CHATEAU 51WDG) |
0.128 | 4 oz |
Apply in early spring to dormant mint. May cause stunting on light soil. 80-day PHI. | |||||
| oxyfluorfen (GOAL 2XL) |
0.5 | 1 qt |
Apply before mint emerges to avoid crop injury. May cause temporary stunting of mint. | |||||
| pendimethalin (PROWL H20 3.8 ACS) |
0.71-1.9 | 1.5-4 pt |
Apply to dormant mint in the spring for control of annual grasses. Do not use on first year (row) mint. 90-day PHI. | |||||
| sulfentrazone (SPARTAN 4F) |
0.14-0.375 | 4.5-12 fl oz |
NEW PLANTING: Apply preemergence after planting. Reduce use rate by 25% for soil type on new plantings.
ESTABLISHED PLANTINGS. Apply before mint emerges in spring. Use lower rate on coarse soils with low OM content. |
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| terbacil (SINBAR 80W) |
0.4-1.6 | 0.5-2 lb |
PREEMERGENCE: Apply in spring before mint emerges. POSTEMERGENCE: Apply up to 1 lb product plus 1 pt NIS/acre. Maximum 2 lb product/acre/year. Carryover injury to other crops. 60-day PHI. | |||||
| Postemergence broadleaves | bentazon (BASAGRAN 4L) |
1 | 1 qt |
Apply postemergence when weeds are small. Include 1 qt COC/acre. Do not exceed 4 lb/acre/year. | ||||
| bromoxynil (BUCTRIL 4EC) |
0.25 | 0.5 pt |
Apply during dry weather with temperatures below 70 F. Effective on small weeds. May cause temporary stunting and leaf chlorosis of mint. 70-day PHI. | |||||
| clopyralid (STINGER 3L) |
0.188-0.375 | 0.5-1 pt |
Apply up to 1 pt in fall or 0.5 pt in spring. Spring application may reduce oil yield. Maximum of 1 pt/acre/year. Controls composites (e.g., Canada thistle, dandelion), legumes, smartweeds, nightshades, plantains and some other weeds. 45-day PHI. | |||||
| glyphosate (ROUNDUP 4L) |
1-3 | 1-3 qt |
Use as a spot spray to kill perennials. Mint sprayed will be killed. Treat a maximum of 1/10 of any acre. 7-day PHI. | |||||
| Postemergence grasses | clethodim (SELECT MAX 0.97E) |
0.068-0.12 | 9-16 fl oz |
Apply to small grasses. Include 0.25% NIS/acre in spray mix. 21-day PHI. | ||||
| quizalofop (ASSURE II 0.88E) (TARGA) |
0.04-0.07 | 6-10 fl oz 6-10 fl oz |
Apply in 10-40 gal/acre to actively growing grass. Use high rate on perennial grass. Include 1 qt COC or 0.5 pt NIS/acre. 30-day PHI. | |||||
| sethoxydim (POAST 1.5E) |
0.19-0.28 | 1-1.5 pt |
Apply to actively growing grasses. Include 1 qt COC/acre. Maximum 5 pt and 2 applications/year. 20-day PHI. | |||||