PROWL H20 3.8 ACS (pendimethalin)


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

ASPARAGUS (Established one year or more)   Preemergence annuals   1.14-3.9   1.2-4.1 qt   Apply before weed emergence in the spring. Use low rate on sandy soil. Include a contact herbicide if weeds have emerged. 14 day PHI. Maximum 4.1 qt/acre/year

ASPARAGUS (Newly planted crowns)   Preemergence broadleaves and grasses   1.14-3.9   1.2-4.1 qt   Cover crowns with 2-4 inches of soil before application. Apply before spears emerge. Do not apply to newly seeded asparagus.

BEANS (Snap or Lima)   Preemergence grasses and broadleaves   0.95-1.42   2-3 pt   Apply before planting and incorporate 1-2 inches deep. Use high rate on soils with 3% or more organic matter.

BROCCOLI, BRUSSELS SPROUTS, CABBAGE, CAULIFLOWER (Seeded, transplanted)   Preemergence grasses and broadleaves   0.475-1.0   1-2.1 pt   BROCCOLI, BRUSSELS SPROUTS, CABBAGE, CAULIFLOWER. Apply to soil between rows 1-3 days after transplanting, or at 2-4 leaf stage after direct seeding. Spray contact with plants may cause crop stunting. 60-day PHI for broccoli; 70 days for other crops.

CARROT   Preemergence annuals   0.95   2.0 pt   Apply after seeding as a broadcast treatment or at layby as a directed spray. Plant barley cover crop 7 days before application. Needs water for activation. 60 day PHI.

CHIVE   Preemergence   0.95-1.9   2-4 pt   Apply to chives after seeding or at the 2-3 leaf stage to control germinating annual grasses and weeds. Emerged weeds will not be controlled. Maximum 4 pt/acre/year. 30-day PHI. Use high rate pre on high-organic soil. MI 24c label.

CORN (Sweet or Pop)   Preemergence   0.7-1.9   0.75-2 pt   Apply preemergence or postemergence up to 24-inch tall corn. Plant 1.5 inch deep. Use drop nozzles for better soil distribution postemergence. Use low rate on light soil. Controls annual grasses, wild proso millet.

EGGPLANT   Preemergence   0.475-1.43   1-3 pt   Apply to soil before transplanting. Do not apply over the top of transplants. Needs water for activation. 70-day PHI.

GARLIC   Preemergence annuals   0.7-1.4   1.5-3 pt   Apply preemergence or postemergence at the 1- to 5- leaf stage. Follow with rainfall or irrigation within 7 days. Maximum 3.2 pt/acre/year. 45-day PHI.

HOPS   Preemergence   1-4   1.1-4.2 qt   Apply to hops in year of planting or to established hops. Apply to dormant or vegetative hop plants. Apply to bare soil before weeds emerge. Avoid contact with vines or cones. A second application may be applied 30 days after the first application. Max. of 4.2 qt/acre/year. 90 day PHI.

LEEK   Preemergence   0.95-1.9   2-4 pt   Apply to leek preemergence or at the 2-3 leaf stage to control germinating annual grasses and weeds. Emerged weeds will not be controlled. Maximum 4 pt/acre/yr. 30-day PHI. Use high rate pre on high-organic soils. MI 24c label.

MINT   Preemergence annuals   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.

MUSKMELON   Preemergence broadleaves and grasses   1.0   2.1 pt   Apply as a shielded spray to soil between rows of plastic mulch before planting melons. A second application of 2.1 pt may be made 21 days after the first application. Avoid contact with melon vines. 35 day PHI.

ONION, GREEN   Preemergence   0.95-1.9   2-4 pt   GREEN ONION AND GREEN SHALLOT. Apply preemergence or at the onion 2-3 leaf stage to control annual grasses and weeds. Emerged weeds will not be controlled. No activity against composites or mustards. Maximum 4 pt/acre/year. 30-day PHI. Use 3-4 pt/acre pre on high-organic soil. MI 24c label.

ONION, SHALLOT, DRY BULB (Seeded, Sets, Transplants)   Preemergence seeded   0.7-1.9   0.75-2 qt   MUCK SOIL: Apply 2 qt/acre preemergence and after the 2-leaf stage. Make third application at the 6- to 9- leaf stage. Pack soil well over the row. Wait 5 days after seeding barley to apply. Maximum total of 6.3 qt/acre/year.

MINERAL SOIL: Apply 1.5-3 pt/acre to onions with 2-9 leaves. Maximum 3.2 pt/acre/year. 45-day PHI.

  Preemergence transplants   0.7 - 1.9   0.75 - 2 qt   Apply after transplanting and after the 2-leaf stage. Pack soil around plants at planting before application.

PEAS   Preemergence   0.71-1.4   1.5-3.0 pt   Preplant incorporated only.

PEPPER (Transplanted)   Preemergence   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.

POTATO   Preemergence annual grasses and broadleaves   0.71   1.5 pt   Apply soon after planting. Needs rain within 7 days to activate. Follow with a delayed preemergence application of linuron or metribuzin.

STRAWBERRY   Preemergence in spring or at renovation   0.71-1.4   1.5-3.0 pt   Apply before or soon after transplanting. Apply to established strawberry during dormancy. At renovation, apply before new leaves emerge. Maximum 6 pt/acre/year. 35 day PHI.

TOMATO   Preemergence   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.

WATERMELON   Preemergence   1   2,1 pt   Apply as a shielded spray to soil between rows of plastic mulch before planting melons. A second application of 2.1 pt may be made 21 days after the first application. Avoid contact with melon vines. 35 day PHI.