Please contact your State Pesticide or Environmental Control Agency, or the hazardous waste representative at the nearest EPA Regional Office for guidance disposing of old Crossbow Herbicide.
As long as you are not spraying Crossbow Herbicide directly on the desirable tree leaves/roots or blueberries it should not harm them. That being said, it is not labeled to be used around edibles, so applications should be kept outside of the dripline of the blueberry plants.
Helena Crossbow Herbicide does not specifically list Catalpa on the label as a controlled tree. We would recommend checking directly with Dow to confirm if it is effective for your target tree. You can reach Dow at 800-992-5994.
Crossbow Herbicide appears to be an effective product on salal but it can take mulitple applications. Best way is to either spray the foliage directly or cutting the stumps/sprouts and applying as a “cut stump” as directed on the product label.
Crossbow Herbicide lists on the product label that it is toxic to fish and may be toxic to aquatic invertabrates. Drift and runoff may be hazardous so treatment should be kept at least 15 feet away from the shoreline to prevent getting into the water. A better option would be something actually labeled for use around aquatic sites such as Diquat or Rodeo.
You can use Crossbow Herbicide in any area you have weeds that need to be controlled that are listed in use areas on the label. The sun does not have to be hitting the areas you spray in order for the product to work the way its designed as long as the mix rates are followed correctly.
Battleship III is our most popular selective herbicide for treating thistle. The advanced "three-way" formulation contains Triclopyr, Fluroxypyr and MCPA in an easy-to-use liquid formulation. Battleship III controls annual and perennial broadleaf weeds including Dandelion, Chickweed, Black Medic, Knotweed, Plantain, Oxalis, Clover, Cocklebur, Thistle and many other species. Please refer to the product label, before application.
Crossbow can be applied by all types of sprayers, from hand-held models to tractor-mounted spray rigs. While we don't talk to a lot of customers using that method of application equipment, there is nothing prohibiting the product from being used that way for their direct spot treatment needs.
Crossbow Herbicide is labeled for the control of most kinds of unwanted trees. On page 5 of the label you can fine directions on how to use for conventional basal bark and stump applications. For larger or established trees, cutting the tree and making a stump application will be the best way to treat.
