|
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
PUMPKIN, SQUASH
| 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) |
0.56-1 | 1.5-2.7 pt |
Apply before or after seeding but before crop emergence. Include 1 pt NIS/100 gal. RUP. | ||||
| Preemergence | bensulide (PREFAR 4E) |
5-6 | 5-6 qt |
Apply to moderately dry, well-worked soil and incorporate 1-2 inches before seeding. 3-4 weeks' residual activity. | ||||
| clomazone (COMMAND 3ME) |
0.25-0.5 | 0.67-1.33 pt |
SUMMER/WINTER SQUASH, PROCESSING PUMPKINS: Apply to soil before transplanting or after seeding. Use lower rate on coarse soils. Apply to soil between rows of plastic before transplanting. Do not apply under plastic. Do not use on bright orange or pink C. maxima cultivars. Do not use on jack-o'-lantern pumpkins. Use in tank mix with a preemergence grass herbicide. 45-day PHI. | |||||
| ethalfluralin (CURBIT 3E) |
0.75-1.13 | 2-3 pt |
PUMPKINS, SUMMER/WINTER SQUASH. Apply to soil surface after seeding, or between rows after transplanting. Needs 0.5 inch rain within 5 days for activation. Heavy rains may cause crop injury. | |||||
| ethalfluralin+ clomazone (STRATEGY 2.1L) |
0.6-1.2+ 0.19-0.375 |
3-6 pt |
Apply to soil surface after seeding, or as a banded spray between rows after transplanting. Needs 0.5 inch water within 2 days for activation. Use lower rate on light soil. | |||||
| s-metolachlor (DUAL MAGNUM 7.62 EC) |
0.95-1.26 | 1-1.33 pt |
PUMPKIN. Apply as a directed spray to area between rows after seeding or transplanting. 30 day PHI. | |||||
| trifluralin (TREFLAN 4E) |
1-2 | 1-2 qt |
Direct the spray between rows of plants with 3-4 leaves. Cultivate shallowly to incorporate. Avoid contact with crop leaves. 30-day PHI. | |||||
| Preemergence and postemergence broadleaves | halosulfuron (SANDEA 75W) |
0.023-0.035 | 0.5-0.75 oz |
PREEMERGENCE: Apply after seeding and before cracking. Heavy rainfall or cool weather may cause crop injury after application.
POSTEMERGENCE: Apply when crop has 2 or more leaves and before flowering. Include 0.25% NIS. PROCESSING PUMPKIN AND SQUASH: Maximum 1 oz product/application. SUMMER SQUASH: Apply between rows as directed spray. Do not spray over top of plants. Maximum 2 oz product/acre/year. 30-day PHI for all crops. |
||||
| Postemergence grasses | clethodim (SELECT MAX 0.97E) |
0.068-0.12 | 9-16 fl oz |
Apply to actively growing grasses. Do not exceed 64 fl oz/acre/year. Include 0.25% NIS/acre. 14-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 total of 3 pt/acre/season. 14-day PHI. | |||||
| Postemergence perennials | glyphosate (ROUNDUP 4L) |
2-3 | 2-3 qt |
Apply to emerged perennials before planting the crop. Wait 3 days before planting. | ||||