|Trade Name: Tower||Common Name: dimethenamid-p||Formulation: 6 EC|
Suppression of yellow nutsedge and preemergence control of many annual grasses, sedges, and broadleaf weeds in container and field-grown woody nursery stock, landscape plantings and groundcovers.
|Amount of Active Ingredient||Amount by Formulation|
|Per Acre||0.98 to 1.5 lb||21 to 32 fl oz|
|Per 1,000 sq. ft.||0.48 to 0.73 fl oz|
Major Weeds Controlled
Many annual weeds including annual grasses, annual sedges, spurge, oxalis, doveweed, willowherb and many others. Higher doses are required for bittercress, chamberbitter and marsh parsley control. Suppression of eclipta.
Major Weeds Not Controlled
Purple nutsedge, evening primrose, morningglory, long-stalked phyllanthus, Japanese stiltgrass, pearlwort.
For Best Results
Apply to weed-free soil or substrates. Irrigate soon after application. Do not use in greenhouses or other enclosed structures. Avoid applications over the top of broadleaf ornamental plants in the spring when young, tender growth is present. Directed applications may be used to avoid injury to tender foliage.
Cautions and Precautions
Do not use on begonias or ornamental grasses. Injury to other species of herbaceous ornamentals has been reported including dianthus, rudbeckia, stachys, salvia and others. Do use in propagation or liner production. Applications to newly transplanted rooted cuttings or seedlings of loropetalum, Lavendula, wax myrtle (seedlings) can stunt plant growth. Delay applications to these species until plants are well established. Label restricts back to back applications of Tower on certain species. Check label for details. Do not exceed 64 fluid ounces per acre per year.
In containers, 6 to 8 weeks of residual control of susceptible species has been observed. In soil (landscape of field nursery), up to 12 weeks of residual control can be expected. Weeds requiring higher doses will be controlled for shorter periods of time.
Volatility and Leaching Potential
Dimethenamid-p has moderate volatility and leaching potential but is adsorbed strongly to soil organic matter limiting leaching in most situations. However, in coarse textured soils with low organic matter, leaching may occur.
Symptoms and Mode of Action
Dimethenamid-p inhibits lipid synthesis. Injury symptoms include crinkling of new growth, new leaves remaining “rolled” and not unfurling normally, and general stunting. HRAC Group K3; WSSA Group 15.
|Worker Protection Standards||REI: 12 hours|
|PPE: coveralls, chemical resistant gloves, shoes plus socks, protective eyewear|
|Manufacturer: BASF||EPA Reg. # 7969-239|
Publication date: Feb. 4, 2015
Revised: April 14, 2022
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