What herbicide can I use on asparagus?
Paraquat (Gramoxone Inteon) is a contact herbicide that is effective against both grasses and broadleaf weeds and must be applied before asparagus spears emerge. It is most effective when applied as a broadcast application to weeds that are in the two- to four-leaf stage.
How do you kill weeds in asparagus?
Glyphosate is systemic and works best at controlling perennial weeds. It can be broadcast over the entire planting area in early spring before new asparagus grown emerges or after the last harvest. Snap all spears 1/2 inch below the soil line, so no spears are above ground, then overspray the planting area.
Will broadleaf herbicide kill asparagus?
Asparagus growers have several choices of herbicides for control of emerged weeds. The synthetic auxin herbicides 2,4-D (Formula 40, Embed Extra) and dicamba (Clarity) are effective against many broadleaf annuals and perennials. They also can injure asparagus plants if there is too much contact with spears or fern.
Which herbicides are systemic?
Systemic herbicides generally are slower acting and kill plants over a period of days. Examples of systemic herbicides include glyphosate (Roundup), 2,4-D, dicamba (Banvel), imazaquin (Image), and sethoxydim (Vantage).
How do you control the grass from asparagus?
In order to kill weeds in asparagus beds, apply salt or a weed killer in spring or fall, when asparagus is dormant. To prevent new weeds from sprouting, use a pre-emergent herbicide, such as Preen or Corn Gluten Meal in spring. Top the soil in your asparagus bed with 3–4 inches of mulch to keep weeds out.
How do you get rid of grass in asparagus patches?
What’s the best fertilizer for asparagus?
The best fertilizer for asparagus will feature a balanced formula that contains equal amounts of nitrogen, phosphorus and potassium, such as a 10-10-10 or 15-15-15 blend. Beginning in the fourth year, apply fertilizer after the final harvest in late spring or early summer, instead of a spring application.
Can I spray Roundup on asparagus?
Products containing the pre-emergent herbicide trifluralin can be applied in early spring before the asparagus spears begin to emerge. Glyphosate (Roundup) can be used on difficult-to-control perennial weeds. Do not allow Roundup to get on asparagus spears or ferns, as serious plant injury may occur.
How do you poison an asparagus fern?
Herbicide control Herbicide applications are recommended for medium-to-large infestations, but can also be used for small infestations. Suitable methods are cut and paint, basal bark spray and foliar spot spray. Apply when plants are actively growing.
What is a good systemic herbicide?
Glyphosate is the most widely used postemergence herbicide in landscape plantings for several reasons. First and foremost, it is effective. Glyphosate is a systemic (translocated) herbicide that moves from the treated foliage to other plant parts, including the roots.