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.
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.
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.
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.
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.
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.
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.
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.
You would not want to apply the Helena Crossbow Herbicide to any plant you didn't plan to kill completely. The systemic nature of the product would very likely move into more areas of the plant than just where you applied it. Products that are plant growth regulators would typically be used to reduce spread or new shoots/growth from plants that have been trimmed. The Sucker Punch RTU is a popular choice to stop "suckers" - new sprouts from a cut branch or stump. You can review the full Product Label Here prior to purchasing to see if you feel it would fit your needs.