|
2009 Weed Control Guide
for Vegetable Crops
|
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
TOMATO
| 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. |
||||
| Emerged weeds before crop emergence | paraquat (GRAMOXONE MAX 3L) |
0.49 | 1.3 pt |
Apply before transplanting or before or after seeding but before crop emergence. Include 1 pt NIS/100 gal. RUP. | ||||
| Preemergence | metrlbuzin (SENCOR 75DF) |
0.25-0.5 | 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. | ||||
| napropamide (DEVRINOL 50DF) |
1-2 | 2-4 lb |
SEEDED OR TRANSPLANTED. Apply before planting and incorporate 1-2 inches. Use low rate on light, sandy soils. | |||||
| pendimethalin (PROWL H20 3.8 ACS) |
0.48-1.4 | 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. | |||||
| s-metolachlor (DUAL MAGNUM 7.6E) |
0.95-1.9 | 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. | |||||
| trifluralin | 0.5-1 | 1-2 pt | TRANSPLANTED. Apply before transplanting and incorporate 2 inches into the soil immediately. Use low rate on light, sandy soils. | |||||
| Postemergence broadleaves | halosulfuron (SANDEA 75W) |
0.023-0.047 | 0.5-1 oz |
TRANSPLANTED ON PLASTIC, for nutsedge suppression: Apply to soil and then lay plastic. Wait 5 days before transplanting.
TRANSPLANTED ON BAREGROUND: Transplant tomato and wait 14 days before application. Apply over the top of transplants or directed between rows. 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. |
||||
| metrlbuzin (SENCOR 75DF) |
0.25 | 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. | |||||
| rimsulfuron (MATRIX 25WDG) |
0.031 | 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 (GRAMOXONE MAX 3L) |
0.49 | 1.3 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. | ||||
| Postemergence grasses | clethodim (SELECT MAX 0.97E) |
0.068-0.12 | 9-16 fl oz |
Apply to actively growing grasses. Include 0.25% NIS. Maximum 64 fl oz/acre/year. 20-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 of 4.5 pt total/acre. 20-day PHI. | |||||
| Emerged perennials | glyphosate (ROUNDUP 4L) |
2-3 | 2-3 qt |
Apply to emerged perennials before planting the crop. Wait 3 days before planting. Check label for correct rate for each weed. | ||||