Helena Crossbow Herbicide - Questions & Answers

Displaying 31 to 40 (of 48 questions)
  • Asked by Lisa from Grove Oak, Alabama
    04/21/2017
    Q
    What is the mixing ratio to kill privet hedge using Crossbow Herbicide?
    A

    While Crossbow is labeled to to treat woody plants and vegetation, privet hedge is not specifically listed on the product label as a controlled weed. We would recommend contacting your local cooperative extension office to confirm whether using Crossbow Herbicide would be appropriate for this treatment, or for product recommendations that have been proven to be successful for others in your area. 

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    9 of 12 people found this answer helpful.
  • Asked by Raquel from Colcester, Vt
    04/13/2019
    Q
    Can Crossbow Herbicide get rid of tiger day lilies?
    I dug out a large bed of tiger lilies and planted nicer ones where I thought I had cleaned the tiger ones last fall. Now I see the tiger ones reemerging in a few spots. Can I apply this product to get ride of the tiger ones and would it affect the nicer lilies I planted next to them?
    A

    Crossbow Herbicide can injure the desirable tiger lilies if contact is make with them through spraying/drift.  It is not labeled to control them so would not be recommended for that purpose.  The best option for spot treating in beds is a non selective herbicide such as Avenger or RoundUp QuikPro, taking care to avoid spraying the ones you don’t want controlled, or you can hand-pull.  

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    1 of 1 people found this answer helpful.
  • Asked by Greg from Bellevue, Wa
    04/21/2017
    Q
    When can I cut down blackberry vines after applying Crossbow Herbicide?
    I just applied Crossbow to blackberries in the Spring. However, they are growing fast (in my lawn), and I wanted to cut them down so I can mow my lawn. I have seen that it takes 7-14 days for Crossbow to work on blackberries, but I am specifically wondering if it is still entering through the foliage over this entire time period. In other words, I don't want to cut off the foliage while it is feeding poison to the plant. But at the same time, I need to contain the spread, so that I may now the lawn. I saw a response to a similar question that suggested pruning prior to applying Crossbow. I've already applied Crossbow and would like to know when I can cut without rendering Crossbow ineffective. Thanks!
    A

    Yes, Crossbow Herbicide is still being absorbed in the plant throughout that time period. We do normally recommend that you prune the plant before you apply Crossbow. It is recommended that you wait at least 30 days before pruning the plants once Crossbow has been applied. You can still cut the plant down after application. 

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    8 of 8 people found this answer helpful.
  • Asked by Janice
    06/03/2017
    Q
    Does Crossbow kill grass?
    A

    Crossbow Herbicide is not to be used on bentgrass or newly seeded grass.

    If you are wanting a bareground herbicide to kill whatever it is applied to, we would recommed using Pramitol 25E. If you are wanting to treat grassy weeds in ornamental beds and landscaped areas, Grass Out Max is a selective herbicide that can be sprayed without harming desired plants. 

    Please read all product labels for application rates and instructions. 

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    7 of 7 people found this answer helpful.
  • Asked by Barbara
    06/10/2016
    Q
    Will application of Crossbow Herbicide kill native plants?
    We live on a steep bluff and want to get rid of blackberries but do not want to kill native plants. We have been cultivating natural salal and huckleberry, small madrone, and broad leaf Maple.
    A

    Crossbow Herbicide could affect desirable woody and viney plants that are sprayed with it. You should avoid spraying desirable vines and trees. We suggest spot treating the target plants and spraying when conditions are calm.

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    7 of 7 people found this answer helpful.
  • Asked by Jerry
    06/03/2011
    Q
    Will Crossbow Herbicide kill any plants next to the one sprayed?
    I have some woody plants (small trees) and briars growing in my beds with my boxwood hedge. Will Crossbow also kill the boxwoods if I use it on the woody plants?
    A
    Crossbow is formulated to be able to kill woody stemmed plants including shrubs and bushes and it may harm your boxwoods. We recommend that you call the manufacturer directly since they are the experts on their product. Dow Agrosciences 1-800-263-1196.
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    23 of 30 people found this answer helpful.
  • Asked by Larry from Granite Falls, Wa
    08/16/2017
    Q
    Is Crossbow Herbicide best to kill wild blackberries in the NW and at what rate?
    A

    Crossbow Herbicide can be used to kill dormant blackberry bushes and vines. You would apply to thoroughly wet upper and lower stems including the root collar and any ground sprouts. Treat at any time when the brush is dormant and the bark is dry. Best results have been obtained with late winter to early spring applications. You will use 1.5 gals./acre broadcast application or 1 to 1.5% mixture. Please refer to the product label for complete mixing and application instructions.

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    25 of 31 people found this answer helpful.
  • Asked by Linda from Portland, Or
    10/06/2019
    Q
    Can Helena Crossbow Herbicide eradicate grape hyacinths?
    The grape hyacinths have multiplied and spread to places I don't want them. Digging them out hasn't been successful because it's impossible to get them all. I'd like to know how to get them gone.
    A

    Helena Crossbow Herbicide does not specifically list grape hyacinths. We recommend that you consult with your local cooperative extension office Master Gardener for tips on eradication.

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  • Asked by Sam from Yacolt, Washington
    11/09/2020
    Q
    Can I spray Helena Crossbow Herbicide and not kill my trees?
    It's been 4 years since I replanted. The blackberries are going wild. I have 6 acres I cut all the big Douglas fir trees down on. I took out 200 trees and then replanted 1000.
    A

    Crossbow should not harm established trees but may damage younger trees if applied directly to them. To avoid injury, do not apply directly on or within the drip line of smaller trees and avoid the foliage and any exposed roots of mature trees. It is best to carefully spot treat the target plants to avoid injury to your desirable trees.

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    1 of 1 people found this answer helpful.
  • Asked by S from Clinton, Tn
    04/22/2017
    Q
    How soon after Crossbow Herbicide application can we pull up weeds from a garden?
    Herb and vegetable gardens were sprayed to kill clover and other weeds. How soon can we pull up weeds? I read that we should wait 3 weeks before planting grass - does that apply to planting herbs, vegs, and flowers?
    A

    Crossbow Herbicide is not labeled to be used around anything edible like vegetables.  It is also a vegetation management product, which means that it is not very selective, so it will kill almost anything that it is sprayed on, including the edible plants.  You will need to wait at least 3 weeks before replanting in areas areas where Crossbow Herbicide has been applied.  You will need to wait at least 1 year after application to plant any edibles intended for human consumption.  We would not recommended consuming anything from the current plants in the garden and disposing of anything contaminated by spraying.

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    4 of 5 people found this answer helpful.
Displaying 31 to 40 (of 48 questions)